Euglossa (Euglossella) mandibularis Friese

Hinojosa-Díaz, Ismael A. & Engel, Michael S., 2014, Revision of the orchid bee subgenus Euglossella (Hymenoptera: Apidae), Part II: The viridis and mandibularis species groups, Journal of Melittology 36, pp. 1-108 : 81-90

Euglossa (Euglossella) mandibularis Friese

( Figs. 117–132 , 153 , 166 , 170 )

Euglossa mandibularis Friese, 1899: 137 [♂ ♀]. Lectotype ♀ (ZMB, visum).

Euglossa mandibularis var. bernardina Cockerell, 1917: 144 [♂]. Holotype ♂ (USNM, visum). Synonymy by Moure (1967b).

Euglossa aenescens Friese, 1925: 28 [♂ ♀]. Lectotype ♂ (ZMB, visum). Synonymy by Moure (1967b).

DIAGNOSIS: Labiomaxillary complex in repose reaching fifth to sixth metasomal sternum in male ( Fig. 118 ), third metasomal sternum in female ( Fig. 120 ); lower interorbital distance noticeably wider than upper, by about 1.10 times in male ( Fig. 121 ), and 1.20 times in female ( Fig. 122 ); malar area long (over 0.30 mm in either sex, 1.25 times as long as diameter of mid-flagellar articles) ( Figs. 121–122 ); pronotal dorsolateral angle orthogonal to acute, slightly projected; male mesotibial tufts as follows: anterior tuft rhomboid, long (maximum length exceeding mid-width of velvety area) and moderately wide (mid-width slightly exceeding width of contiguous section of velvety area), posterior tuft circular ( Figs. 123 , 153 ); female mesoscutellar tuft oblong, composed of dense, dark setae, occupying two thirds of mesoscutellum length ( Fig. 119 ); male mesobasitarsus with posterior keel projected in an obtuse angle ( Fig. 124 ); female metabasitarsus with anterior margin noticeably convex and posterior margin appearing straight ( Fig. 126 ); second metasomal sternum of male with two simple meso-lateral tufts; metasoma slightly (but consistently) wider than head (about 1.06 times or more) ( Figs. 117 , 119 ); head evenly purple-bluish in female ( Fig. 122 ), frontal areas below frontal fringe in male green (remainder of male head purple-bluish) (vide Comments, infra) ( Fig. 121 ); male with paraocular marks triangular, lower width occupying entire length of lower lateral part of clypeus ( Figs. 118 , 121 ); scape of male with ivory spot limited to distal half (or less) on lateral surface ( Fig. 121 ), absent in female ( Fig. 122 ); mesosoma and metasomal terga purple-bluish ( Figs. 117–120 ); mesoscutellum and central area of mesepisternum rather sparsely punctate (punctures separated by two puncture diameters) ( Figs. 117 , 119 ); metasomal terga with round deep punctures separated by about one third of a puncture diameter (slightly denser in female), doubling in size towards last tergum ( Figs. 117–120 ); mesosomal vestiture dominated by a mix of soft, fuscous and brown, sturdy setae, the former dominant in male ( Figs. 117–118 ), the latter more so in female ( Figs. 119–120 ); eighth metasomal sternum posterior section conical in dorsal or ventral views, lateral width noticeably narrower than anterior section of sternum (as in all previous species) ( Figs. 128–129 ); gonocoxite dorsal process longer than wide (slender) ( Fig. 130 ); gonostylar lateral section with well developed secondary lobe (convexity of posterior margin of basal sector), whole basal sector larger than in all previous species and with denser setae ( Figs. 132–166 ).

DESCRIPTION: ♂: Structure. Total body length 13.96 mm (12.52–15.19; n=5); labiomaxillary complex in repose reaching fifth sternum (in some specimens reaching anterior section of sixth metasomal sternum) ( Fig. 118 ). Head length 2.99 mm (2.81–3.22; n=5), width 5.49 mm (5.22–5.70; n=5); upper interorbital distance 2.44 mm (2.33–2.59; n=5); lower interorbital distance 2.69 mm (2.59–2.81; n=5); upper clypeal width 1.32 mm (1.19–1.37; n=5); lower clypeal width 2.40 mm (2.30–2.52; n=5); clypeal protuberance 0.86 mm (0.78–0.89; n=5); medial clypeal ridge sharp, paramedial clypeal ridges rather blunt (compared to E. viridis ), orientation of paramedial ridges as in E. viridis ; labrum wider than long, length 1.11 mm (1.04–1.19; n=5), width 1.35 mm (1.26–1.44; n=5) ( Fig. 121 ); medial labral ridge sharp; paramedial labral ridges slightly weaker than medial ridge, oblique, present in proximal two-thirds of labrum; labral windows ovoid, occupying proximal half of labrum; interocellar distance 0.37 mm (0.35–0.39; n=5); ocellocular distance 0.70 mm (0.66–0.74; n=5); first flagellar article as long [0.59 mm (0.56–0.63; n=5)] as second and third flagellar articles combined [0.60 mm (0.58– 0.63; n=5)]; length of malar area 0.32 mm (0.30–0.37; n=5). Mandible tridentate. Pronotal dorsolateral angle orthogonal to acute, slightly projected; intertegular distance 4.27 mm (4.07–4.59; n=5); mesoscutal length 3.48 mm (3.26–3.63; n=5); mesoscutellar length 1.50 mm (1.44–1.56; n=5); posterior margin of mesoscutellum rather convex, convexity less pronounced mesially, mesoscutellar disc with a central concavity, creating two mid-lateral cusps ( Fig. 117 ); mesotibial length 3.02 mm (2.74–3.19; n=5); mesobasitarsal length 2.81 mm (2.59–3.04; n=5), width 1.00 mm (0.93–1.04; n=5), posterior keel project- ed in an obtuse angle with proximal margin (between mesotibia-mesobasitarsus joint and apex of keel) appearing noticeably convex ( Fig. 124 ); metatibia triangular (scalene triangular) ( Fig. 125 ), maximum thickness 1.88 mm (1.70–2.00; n=5); metatibial anterior margin length 4.77 mm (4.44–5.11; n=5), ventral margin length 3.49 mm (3.26–3.67; n=5), postero-dorsal margin length 6.05 mm (5.81–6.37; n=5); metatibial organ slit as described for E. viridis , dorsal section length 0.73 mm (0.70–0.74; n=5); metabasitarsal length 2.84 mm (2.67–3.11; n=5), mid-width 1.14 mm (1.11–1.19; n=5); metabasitarsal ventral margin truncate. Forewing length 11.95 mm (11.48–12.52; n=5); jugal comb with 12–18 (n=5) blades; hind wing with 21–26 (n=5) hamuli. Maximum metasomal width 5.80 mm (5.33–6.22; n=5); second metasomal sternum with two meso-lateral tufts separated by twice width of an individual tuft.

Coloration. Purple bluish coloration throughout ( Figs. 117–118 ). Head with distinctive green facial areas below frontal fringe, otherwise blue with golden-bronzy hue throughout; paraocular ivory marks triangular, lower width occupying entire length of lower lateral part of clypeus, and noticeably brown on margins ( Figs. 118 , 121 ); malar area with yellow/ivory coloration of different degrees, mostly occupying anterior half (some specimens with no yellow coloration); mandible with yellow spot basally, otherwise completely brown; scape with yellow spot limited to distal half of lateral surface, smaller in some specimens ( Fig. 121 ). Mesosoma dark blue, glossy, with purple highlights more noticeable on mesoscutellum ( Figs. 117–118 ); legs concolorous with remainder of mesosoma. Metasomal terga dark blue with strong purple iridescence, more noticeable on posterior half of terga, all with glossy shine, some specimens with faint green iridescence on margins of terga ( Figs. 117–118 ); metasomal sterna dark blue with purple iridescence.

Sculpturing. Head as described for E. viridis , except punctures on margin of antennal depressions slightly larger and sparser ( Fig. 121 ). Mesoscutum sparsely punctate (punctures separated by one to two puncture diameters), punctures of two sizes, smaller punctures about one-third diameter of larger and more common punctures ( Fig. 117 ); mesoscutellum with a similar mixture of punctures as mesoscutum, but punctures larger and denser, separated by about one puncture diameter ( Fig. 117 ); mesepisternal lateral areas centrally with punctures separated by two puncture diameters. Metasomal terga as follows: first to second terga with punctures as larger punctures on mesoscutum, separated by about one-third puncture diameter, remaining terga with similar pattern but punctures increasing in size towards posterior terga so that they double in size on fourth to seventh terga ( Fig. 117 ). Sterna with punctures as those on fourth tergum, sterna with wide smooth mesial areas (narrower towards posterior segments).

Vestiture. Head with fuscous setae throughout (arranged as in E. viridis although slightly longer), frontal fringe and vertex with a mix of fuscous setae and brown, long, erect and simple setae; some of erect simple setae intermixed on lower facial area, especially on mandibles ( Fig. 121 ). Mesoscutum and mesoscutellum with a similar composition as frontal fringe and vertex (moderately dense and brown, erect setae slightly dominant), setal length as on vertex, anteriorly on mesoscutum and progressively becoming shorter posteriorly, getting longer and more curved on mesoscutellum margin (variation in mesoscutum and mesoscutellum setal coloration exists and is correlated to variation in integumental coloration, i.e., darker integument correlates with darker setae). Ponotal lobe with brown, sturdier, long setae; mesepisternum with dense, fuscous, plumose, long setae, those on upper section (as well as hypoepimeral area) turning darker (almost same color as sturdier setae on mesoscutum) ( Figs. 117–118 ). Legs as follows: Coxae and trochanters with fuscous, plumose, long setae; profemur and protibia with brown, simple, erect setae, long on proximal posterior margin of profemur, probasitarsus with fulvous-golden chemical-collecting tufts; mesotibia with brown setae on velvety area and mesotibial tufts; anterior mesotibial tuft rhomboid, posterior mesotibial tuft round, anterior one with longer setae on anteroproximal section, some of these setae continuing on a fringe outside of tuft cavity; dimensions of anterior tuft and contiguous velvety area as described for E. viridis , although not as wide ( Figs. 123 , 153 ); mesobasitarsus with fuscous setae outside, fulvous-amber, sturdy setae inside; metatibial slit with brown setae, inner surface with brown, simple, short setae, outer surface with fulvous setae sparse on central areas, dense on anterior margin where setae also longer, postero-dorsal margin of metatibia with fulvous, long setae forming a fringe on posterior half; metabasitarsus with very sparse, brown, simple, short setae on outer surface, inner surface as on mesobasitarsus ( Fig. 125 ). Metasoma as follows: first tergum dorsally with fuscous, simple, semi-erect, long setae; second to third tergum dorsally with dense, sturdy, simple, erect setae oriented posteriorly, fourth to seventh terga with setae turning again fuscous and increasing in length posteriorly ( Figs. 117–118 ); sterna with setae structurally as those on first tergum, but rather fulvous and longer mesially along both sides of smooth areas, especially long and curved inwards on second sternum (sternal tufts).

Terminalia. Seventh metasomal sternum as described for E. viridis (including variation, but incision much more distinct) ( Fig. 127 ). Eigth metasomal sternum distinctive from all previously described species as follows: posterior section after basal lobes noticeably conical in dorsal or ventral views (opposite to elongate and cylindrical structure in previous species), otherwise lateral width as in E. viridis ; setae on lobes only restricted to areas contiguous to conical apical projection, and not as dense as in previous species ( Figs. 128–129 ). Dorsal process of gonocoxite longer than wide (by comparison to previous species in which it is as wide as long) ( Fig. 130 ). Gonostylar lateral section similar to that of E. viridis , but basal sector enlarged and with noticeably denser setae ( Figs. 132 , 166 ). Spatha as described for E. viridis (130).

♀: Structure. Total body length 14.43 mm (13.56–16.30; n=5); labiomaxillary complex in repose reaching third metasomal sternum ( Fig. 120 ). Head length 3.46 mm (3.37–3.59; n=5); head width 5.68 mm (5.56–5.87; n=5); upper interorbital distance 2.55 mm (2.50–2.61; n=5); lower interorbital distance 3.01 mm (2.96–3.11; n=5); upper clypeal width 1.39 mm (1.33–1.48; n=5); lower clypeal width 2.47 mm (2.41–2.59; n=5); clypeal protuberance 0.81 mm (0.74–0.89; n=5); clypeal ridges as described for male, labral ridges and labral windows as described for male (vide supra); labrum rectangular, wider than long, length 1.20 mm (1.15–1.24; n=5), width 1.46 mm (1.44–1.51; n=5); anterior margin of labrum arched outwards with subapical carina ( Fig. 122 ); interocellar distance 0.41 mm (0.39–0.41; n=5); ocellocular distance 0.75 mm (0.70–0.78; n=5); first flagellar article as long [0.59 mm (0.56–0.63; n=5)] as second and third flagellar articles combined [0.60 mm (0.56–0.67; n=5)]; length of malar area 0.37 mm (0.32–0.41; n=5). Mandible tridentate. Pronotal dorsolateral angle as described for male; intertegular distance 4.39 mm (4.30–4.52; n=5); mesoscutal length 3.57 mm (3.41–3.67; n=5); mesoscutellar length 1.58 mm (1.56–1.63; n=5); posterior margin of mesoscutellum as described for male ( Fig. 119 ); mesotibial length 2.80 mm (2.59–2.96; n=5); mesobasitarsal length 2.61 mm (2.44–2.74; n=5), maximum width 0.87 mm (0.81–0.89; n=5); metatibia triangular (right triangle) ( Fig. 126 ); metatibial anterior margin length 4.01 mm (3.70–4.37; n=5); metatibial ventral margin length 2.47 mm (2.37–2.59; n=5); metatibial postero-dorsal margin length 4.69 mm (4.44–4.96; n=5); metabasitarsal length 2.58 mm (2.37–2.74; n=5), proximal margin width 1.21 mm (1.19–1.26; n=5). Forewing length 11.05 mm (10.59–11.48; n=5); hind wing with 21–28 (n=5) hamuli. Maximum metasomal width 6.01 mm (5.85–6.22; n=5).

Coloration. As described for male of same species ( Figs. 119–120 ), except as follows: face mainly blue with green coloration in very narrow areas along antennal sockets, sulci, lower frons, medial clypeus ridge, and anterior margin of clypeus; apical margin of labrum dark brown, malar area purple ( Fig. 122 ). Margins of mesoscutum, mesepisternum, propodeum, and angled areas of podites also with faint blue-green hue (especially on coxae). Metasoma with coppery hue throughout ( Figs. 119–120 ).

Sculpturing. Largely matching male of same species, only punctures appearing denser on metasomal terga ( Fig. 119 ).

Vestiture. For most part as described for male of same species, although setae darker, with brown, sturdy setae dominating areas where both kinds of setae are found, plumose setae darker than in most males ( Figs. 119–120 ). Mesoscutellar tuft oblong, occupying two thirds of mesoscutellar length, and composed of black setae ( Fig. 119 ); metatibial corbicula with a larger number of sturdy, hook-like setae as compared with previously described species, light setae on margins of metatibia absent ( Fig. 126 ). Metasomal sterna with a similar arrangement of setae as just described; long setae on bordering central smooth areas of sterna (some of these setae noticeably erect and dark) ( Figs. 119–120 ).

HOLOTYPE: ♀, Brazil: “ S. Cruz; Brasil; coll. Speyer // Euglossa ♀; mandibularis ; det. Friese 1898 [species name handwritten] // Type [brown colored label] // Coll.; Friese // Zool. Mus.; Berlin” ( ZMB).

ADDITIONAL MATERIAL EXAMINED (18♂♂, 4♀♀): Argentina [new records]: 1♂, “ARG.- MISIONES; DOS DE MAYO; FOERSTER- 2.90 [handwritten] // Euglossa ; mandibularis ; Friese; Fritz 93 [handwritten]” ( AMNH). 1♀, as previous except date “1.90” ( AMNH). 1♀, “ARG.- CORRIENTES; ITUZAINGO; FRITZ- XII.81 // Euglossa mandibularis ; Friese; det. R.L.Dressler, 1986” ( AMNH). Brazil: 1♂, “Brasil; Passa Quatro; 1923; Zikán [all but country name handwritten on a previously printed label] // Solanum [handwritten] // Euglossa ; aenescens ; ♂ F. [Friese] [handwritten] // Type [brown colored label] // = Euglossa ; mandibularis Friese ; det. R.L. Dressler 1975 [last two digits of year handwritten] // Zool. Mus.; Berlin” (holotype of E. aenescens Friese ) ( ZMB). 1♂, “Brasil; Passa Quatro; 1923; Zikán [all but country name handwritten on a previously printed label] // Solanum [handwritten] // Euglossa ; aenescens ; ♂ F. [Friese] [handwritten] // Euglossa ; mandibularis Friese ; det. R.L. Dressler 1975 [last two digits of year handwritten] // Zool. Mus.; Berlin” ( ZMB). 1♂, “Brasil; Passa Quatro; 1923; Zikán [all but country name handwritten on a previously printed label] // Solanum [handwritten] // Euglossa ; aenescens ; ♂ F. [Friese] [handwritten] // Am. Mus. Nat. Hist; Dept. Invert. Zool.; No. 28260 [number handwritten] // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( AMNH). 1♂, “ Espirito-Santo; Brasil. // Euglossa ; mandibularis ; ♂ F. [Friese] [handwritten] // Am. Mus. Nat. Hist; Dept. Invert. Zool.; No. 26010 [number handwritten] // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( AMNH). 1♂, “Corupa; (Hansa Humbolt) S. Cath. Brazil; Feb. 1942 [date handwritten] // A.Maller.Coll.; Frank Johnson; Donor // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( AMNH). 1♂, “ ♂ // J.F. Zikán [vertical writing]; Itatiaya; Est. do. Rio; 21.-1.-1925; 1100 m. Km8 [date and kilometer handwritten] // Euglossa ; mandibularis Friese ; J.F. Zikán determ. [species name handwritten] // Euglossella ; aenescens ; (Fr.) [handwritten on wrapped label]” ( MZUSP). 1♂, “Est. Biol. Boracéia; Salesópolis, SP; W. Wilms. Col,; 3.3.1993 [date handwritten] // Euglossa ; mandibularis ; Friese, 1899; det. W. Wilms, 1994” ( MZUSP). 1♀, as previous except date “ 15.2.1992 ” ( MZUSP). 1♂, “ R. Vermelho; SC-BR. [Brazil] III.57; A.Maller Leg // E. ( Euglossella ); mandibularis ♂ det. GAR Melo 2006 [species name and last digit of year handwritten]” ( FSCA). 1♂, “BRAZIL: GB. Flor-; esta de Tijuca; 8 I 1966; R.L. Dressler 446 [month, day, last digit of year, and number handwritten] // 8 [round label] // mandibularis [handwritten] // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( FSCA). 1♂, “COLEÇÃO CAMPOS SEABRA // RIO VERMELHO; S. Catarina BRASIL; Fever- eiro 1957; A. Maller [date handwritten] // R. Vermelho; 257 [handwritten on folded label] // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( FSCA). 1♂, as previous except date “Janeiro 1957” and number in folded label “157” ( FSCA). 1♂, as previous except missing folded label ( FSCA). 1♂, as previous except two extra labels “8 [round label] // Euglossa ; mandibularis Friese ; det. R.L.Dressler 1968 [last digit of year handwritten]” ( FSCA). 1♀, “Alto da Bõa Vista ; Tijuca(D.F.); II-3 51 [handwritten, illegible]; C.A.C. Seabra col. // Eu.; mandibularis ; Det.J.S.Moure 19 [species name handwritten, last two digits of year missing]” ( FSCA). 1♀, “Brasil-Minas Gerais; Poços de Caldas; Morro do Ferro; January 28, ’64; J. Becker & O. Roppo cols // Euglossa ; ( Euglossella ); mandibularis Friese ♀; Det. I. Hinojosa-Díaz 2012” ( FSCA). 1♀, “Nova Teutonia ; Santa Catarina; Brasil 18-II-1954; Fritz Plauman [month and day handwritten] // Euglossa ; mandibularis ; Friese; Det.J.S. Moure 1956 [species name and two last digits of year handwritten]” ( SEMC). 1♂, “Mafra; S.Cath.Brazil; March 1940 [date handwritten] // A.Maller.Coll.; Frank Johnson; Donor // aenescens [handwritten] // Euglossa ; mandibu; laris Friese; Det.J.S. Moure 1956 [species name and two last digits of year handwritten]” ( SEMC). 1♂, “BRASIL-Sao Paulo, Sales-; opolis, Boracea, 850 mts. 13 Nov. 1950 (Rabello) // Euglossa ♂; mandibularis ; Fr.; J.S.Moure 1963 [species name and two last digits of year handwritten]” ( SEMC). Paraguay: 1♂, “S Bernardino; Paraguay // K Fiebrig; Collector // 4 obt; Gei Ruhlein; Vetten, moeyw; sinter Beatt [interpretation of handwritten folded label] // Type No.; 23143; U.S.N.M. [red label] // Euglossa ; mandibularis ; var. bernardina ; Ckll. TYPE. [handwritten]” (holotype of E. mandibularis var. bernardina Cockerell ) ( USNM). 1♂, “ PARAGUAY Itapua; Cantera? [Puerto Cantera?]; November 1956 // Euglossa ; ( Euglossella ); mandibularis Friese ♂; Det. I. Hinojosa-Díaz 2012” ( SEMC).

COMMENTS: Besides those features mentioned above to recognize species in the mandibularis group, the three species included have an average body length in both sexes that is at least two millimeters above the longest bee in the viridis group, and the labiomaxillary complex in these reaches or surpasses the third metasomal sternum, versus only reaching to the second sternum in the viridis group.

Coloration in E. mandibularis , as currently understood, is quite consistent within the bright purple bluish variety, the only noteworthy exception being the male from, “ Paraguay, Itapua, Cantera” which atypically has a light green face, light purple mesosoma, and rather light brown metasoma with a faint purple hue. In addition, the same specimen has light brown setae in those areas where other specimens have dark brown vestiture, but is otherwise identical in all structural traits to the remaining males of E. mandibularis . In a manner, the coloration of this specimen is similar to what is often seen in species of the decorata group ( Hinojosa-Díaz & Engel, 2011a). It is unclear whether this atypical coloration is merely due to preservation. Aside from this one anomaly, variations in color are subtle.

Morphology of the genital capsule and hidden sterna is distinctive when comparing E. mandibularis (and E. bigibba , the only other species in the group with males known) to those species of the viridis group. In both ventral and dorsal views, the conical shape of the posterior section of the eighth metasomal sternum in E. mandibularis ( Fig. 128 ) is distinguishable from the rather elongate, cylindrical shape in both the viridis ( Fig. 11 ) and decorata groups ( Hinojosa-Díaz & Engel, 2011a). The distribution of setae on this same structure and the adjacent lobes also differ. The dorsal process of the gonocoxite is narrower ( Fig. 130 ), and the gonostylus has a rather elongate basal sector with noticeably denser setae ( Fig. 166 ), by comparison to the state observed in the viridis (Figs. 13, 155–162, 164–165) and decorata groups ( Hinojosa-Díaz & Engel, 2011a). Males of E. mandibularis have been shown to be dimorphic regarding the presence or absence of a setose mesoscutellar tuft, and when present is similar to tuft of females ( Peruquetti, 2002; Nemésio, 2009).

Interestingly, superficial similarities in color and distribution led Nemésio (2009) to suspect the possibility of E. mandibularis being conspecific with E. (Glossura) iopoecila Dressler. This is assuredly not the case as the latter species belongs clearly to a different subgenus and shares little in structural traits with E. mandibularis .

Euglossa mandibularis has previously been recorded from southern Paraguay and the southern and southeastern regions of Brazil ( Moure, 1967b; Moure et al., 2007; Nemésio, 2009). Here we expand the distribution to include areas in northern Argentina (Corrientes and Misiones Provinces) ( Fig. 170 ).

Figures

Figure 170. Collection localities for species of Euglossella Moure, viridis and mandibularis species groups [also showing localities for females attributable only to Euglossa (Euglossella) viridis (Perty)/azurea Ducke]. Locality points are based on examined specimens.

Figures 117–118. Euglossa (Euglossella) mandibularis Friese, male. 117. Dorsal habitus. 118. Lateral habitus.

Figures 119–120. Euglossa (Euglossella) mandibularis Friese, female. 119. Dorsal habitus. 120. Lateral habitus.

Figures 121–126. Euglossa (Euglossella) mandibularis Friese. 121. Facial aspect of male. 122. Facial aspect of female. 123. Mesotibial tufts of male. 124. Proximal section of male mesobasitarsus. 125. Outer view of male metatibia and metatarsus. 126. Outer view of female hind leg.

Figures 127–132. Male terminalia of Euglossa (Euglossella) mandibularis Friese. 127. Seventh metasomal sternum, ventral aspect. 128. Eighth metasomal sternum, ventral aspect. 129. Eighth metasomal sternum, lateral aspect. 130. Genitalic capsule, dorsal aspect. 131. Genitalic capsule, ventral aspect. 132. Genitalic capsule, lateral aspect.

Figures 144–154. Outer view of mesotibiae of males of species of Euglossella Moure, viridis and mandibularis species groups. 144. Euglossa (Euglossella) viridis (Perty). 145. E. (E.) azurea Ducke. 146. E. (E.) celiae, new species. 147. E. (E.) cyanea Friese. 148. E. (E.) subandina, new species. 149. E. (E.) polita Ducke. 150. E. (E.) perviridis Dressler. 151. E. (E.) cyanura Cockerell. 152. E. (E.) granti Cheesman. 153. E. (E.) mandibularis Friese. 154. E. (E.) bigibba Dressler.

Figures 164–169. Additional male genitalic features of some species of Euglossella Moure, viridis and mandibularis species groups. 164. Lateral section of gonostylus of Euglossa (Euglossella) viridis (Perty). 165. Lateral section of gonostylus of E. (E.) azurea Ducke. 166. Lateral section of gonostylus of E. (E.) mandibularis Friese. 167. Lateral section of gonostylus of E. (E.) bigibba Dressler. 168. Eighth metasomal sternum of E. bigibba, ventral aspect. 169. Eighth metasomal sternum of E. bigibba, lateral aspect.

Figures 10–11. Male terminalia of Euglossa (Euglossella) viridis (Perty). 10. Seventh metasomal sternum, ventral aspect. 11. Eighth metasomal sternum, ventral aspect. 12. Eighth metasomal sternum, lateral aspect. 13. Genitalic capsule, dorsal aspect. 14. Genitalic capsule, ventral aspect. 15. Genitalic capsule, lateral aspect.