Pieza rafaeli Mendes, Lamas, Evenhuis,

Mendes, Luanna L., Lamas, Carlos J. E., Evenhuis, Neal L. & Limeira-De-Oliveira, Francisco, 2019, New Pieza Evenhuis (Diptera, Mythicomyiidae, Mythicomyiinae) from Northeast Brazil, Zootaxa 4629 (1), pp. 1-25: 15-16

publication ID

https://doi.org/10.11646/zootaxa.4629.1.1

publication LSID

lsid:zoobank.org:pub:A8E9B9F1-4CC4-4BF9-81B0-36B1729BCC1B

persistent identifier

http://treatment.plazi.org/id/03D887D1-A31C-FFA1-F1A7-8CDDFCCC44C6

treatment provided by

Plazi

scientific name

Pieza rafaeli Mendes, Lamas, Evenhuis
status

 

Pieza rafaeli Mendes, Lamas, Evenhuis  & Limeira-de-Oliveira, sp. nov.

( Figs 43–51View FIGURES 43–51)

Diagnosis. Mesonotum pale yellow on the triangular antero-mesonotal submedian mark and supra-alar area ( Fig. 44View FIGURES 43–51). Epandrium subrectangular, ventral margin about 1.5X longer than dorsal margin, anterior margin straight in lateral view ( Fig. 48View FIGURES 43–51). Cerci sub-hemispherical, slightly separated transversely in posterior view ( Fig. 50View FIGURES 43–51). Gonocoxite trapezoidal in ventral view ( Fig. 47View FIGURES 43–51), anterior margin strongly sclerotized, lateral and median margins weakly sclerotized, submedian area appearing membranous. Gonostylus not conspicuous, apparently absent.

Description of holotype male ( Fig. 43View FIGURES 43–51). Body length: 1.2 mm. Wing length: 1.0 mm. Head. Eyes separated at vertex by approximately 2.0X distance between posterior ocelli. Ocellar triangle dark brown, subshiny. Frons dorsal ½ dark brown, ventral ½ yellow, round brown mark on median depression; setae yellow, small, lateral; face yellow. Proboscis light brown to brown, about ⅔ longer than length of head; oral cavity yellow, light brown on margin. Post- cranium dark brown, subshiny, surface sparsely pruinose; setae brown. Antenna with second flagellomere as long as ½ maximum width of first flagellomere. Thorax. Mesonotum subshiny, sparsely pruinose medially on a stripe from anterior region to base of wing, setae brown, erect and sparse; mesonotum pale yellow on the following: triangular antero-mesonotal submedian mark and supra-alar area ( Fig. 44View FIGURES 43–51); prealar and notopleural setae dark brown; strong. Scutellum brown to dark brown, setae brown, sparse. Pleura yellow on the proepimeron, dorsal margin and ½ posterodorsal of anepisternum, dorsal ¼ of katepisternum, posterior margin of anepimeron and dorsal ½ of meron ( Fig. 45View FIGURES 43–51); posterodorsal ⅓ of katepisternum shiny, setae yellow, sparse, restricted to margin of anepisternum, sparse. Legs ( Fig. 43View FIGURES 43–51). Coxae brown dorsally, yellow ventrally. Femora dark brown, distal ¼ yellow. Tarsi yellow, tarsomeres II−V dark brown. Wing ( Fig. 46View FIGURES 43–51). Hyaline; costal vein ending at proximal ⅓ distance between veins R 4+5 and M 1; vein R 2+3 arising from Rs at approximately 60° angle, crossvein m-m about ½ length of crossvein r-m. Halter yellow, brown infuscate. Abdomen. Brown to dark brown, subshiny, tergites II−VII with plaques paler and shinier than surroundings, small, glabrous and dispersed; setae yellow, longer on tergites IV−VII; tergites I−III with posterolateral margin yellow; tergites IV−VII with pale yellow band on posterior margins. Sternites brown, yellow band on posterior margins. Terminalia. Epandrium bulging in ventral view ( Fig. 47View FIGURES 43–51), subrectangular, ventral margin about 1.5X longer than dorsal margin, anterior margin straight, setose on posterior ⅓ and ventral ⅔ in lateral view ( Fig. 48View FIGURES 43–51); epandrium with outer and inner margins rounded in posterior view ( Fig. 50View FIGURES 43–51). Pseudo-surstylus convergent, tapered toward apex in ventral and posterior views ( Figs 47, 50View FIGURES 43–51). Cercus sub-hemispherical, slightly separated transversely, dorsal ⅔ strongly sclerotized, thick laterodorsally, setae concentrated on dorsal ⅔ of inner surface, ventral ⅓ weakly sclerotized and glabrous in posterior view ( Fig. 50View FIGURES 43–51), subtriangular, median region projecting pos- teriorly, distal ⅓ elongate, projecting ventrally ( Fig. 48View FIGURES 43–51). Ejaculatory apodeme almost as long as length of anterior arm of parameral sheath, more heavily sclerotized on longitudinal axis, medial arms subrectangular, broad distally, about 2.0X wider than long in ventral view ( Fig. 47View FIGURES 43–51), anterior end rounded, curved dorsally, ventromedial projection subrectangular directed posteriorly, apex truncate in lateral view ( Fig. 48View FIGURES 43–51). Lateral ejaculatory process strongly sclerotized basally, slightly sinuous in ventral view ( Fig. 47View FIGURES 43–51), curved ventrally in lateral view ( Fig. 48View FIGURES 43–51). Phallus subquadrate, anterior margin concave with median notch in ventral view ( Fig. 47View FIGURES 43–51); basiphallus about 2.0X longer than distiphallus in ventral view ( Fig. 47View FIGURES 43–51), distiphallus simple with two inconspicuous apical openings. Anterior arm of parameral sheath with distal ½ almost 2.0X wider than proximal ½ in ventral view ( Fig. 47View FIGURES 43–51), sclerotization stronger on internal margin. Gonocoxite trapezoidal in ventral view ( Fig. 47View FIGURES 43–51), anterior margin strongly sclerotized, lateral and median margins weakly sclerotized, submedian area appearing membranous; gonocoxite with anterodorsal margin concave, anteroventral margin with short and strong sublateral setae in anteroventral view ( Fig. 49View FIGURES 43–51), strongly bilobed medially, anterior lobe setose, about 2.0X more robust than posterior lobe in lateral view ( Fig. 48View FIGURES 43–51). Gonostylus inconspicuous, apparently absent. Female. Similar to male. Genitalia ( Fig. 51View FIGURES 43–51). Genital fork V-shaped, anterior margin arched, posterior margin interrupted medially; inner posterior projection convergent distally, outer projection bifurcate, inner arms short, convergent distally of inner projection, shorter than outer arms, projecting posterolaterally. Common duct indistinct, basal plate hyaline. Sperm pump robust, almost 2.0X longer than wide, caliciform, membranous with transverse striations. Proximal spermathecal duct about 2.0 to 3.0X thicker than distal, distal spermathecal duct about 4.0X longer than proximal, translucent. Valve indistinct. Spermathecal reservoir strongly sclerotized, brown, slightly sinuous, almost the same length as sperm pump, without glandular trichomes.

Variation (n = 5). Body length: 0.99–1.20 mm. Wing length: 0.92–1.02 mm. Frons brown on dorsal ⅓, yellow on ventral ⅔. Proboscis variable in length, in some specimens about ½ of length of head to 2.0X longer than length of head. Mesonotum with a sub-median antero-mesonotal. Tergites with yellow band on posterior margin, sometimes evanescent almost inconspicuous.

Etymology. The specific epithet honors José Albertino Rafael for his contributions to taxonomy and insect systematics in Brazil.

Comments. The specimens captured directly from flowers at Parque Estadual do Mirador—Maranhão are associated with the plant family Chrysobalanaceae  (Fig. 70).

Type material. HOLOTYPE ♂: Brazil, MA[= Maranhão], Mirador, Parque Est.[=Estadual] Mirador , Posto dos Cágados, 06°48′30″S, 45°06′21″W / Arm.[=armadilha] Malaise, 21–26.viii.2016, F. Limeira–de–Oliveira & L.L. Mendes / MYTH 90GoogleMaps  / Holotype ♂ Pieza rafaeli Mendes, Lamas, Evenhuis  & Limeira-de-Oliveira ( CZMA)  . PARATYPES: idem, Barreirinhas, PNLM  [Parque Nacional dos Lençóis Maranhenses], 02°39′49″S, 42º49′54″W, Altit. [=altitude] 16 m, Arm. [=armadilha]. Suspensa, 16–31.xii.2015, FLOGoogleMaps  , A.A.T. Sousa & L.L.M. Santos, cols. (1♀ CZMA)  ; idem, 01–15.i.2017 / MYTH 129 (1♀ CZMA)  . Same data as holotype (2♀ CZMA, 1♀ INPA, 1♀ MNRJ, 1♀ MZUSP)  ; idem/ MYTH 35 (pinned: 1♂ MZUSP)  ; idem/ MYTH 47 (pinned: 1♀ MZUSP)  ; idem/ MYTH 49 (pinned: 1♀ CZMA)  ; idem/ MYTH 57 (pinned: 1♀ INPA)  ; idem/ MYTH 60 (1♀ CZMA)  ; idem/ MYTH 92 (1♂ CZMA)  ; idem/ MYTH 93 (1♂ MZUSP)  ; idem, Posto Avançado do Mel , 06°43′50″S, 44°58′59″W / Coletado em flor, MYTH 34 (pinned: 1♂ CZMA)GoogleMaps  . idem, Carolina, PARNAGoogleMaps  [=Parque Nacional] Chapada das Mesas, Riacho Sucuruiu , 240 m, 07°07′05″S, 47°18′31″W / Armadilha Malaise, 20–31.viii.2013, JAR, FLOGoogleMaps  , T.T.A. Silva, cols./ MYTH 30 (pinned: 1♂ CZMA)  . PI  [= Piauí], Caracol, PARNA  [= Parque Nacional ] Serra das Confusões, Riacho dos Bois, 575 m, 09°13′11″S, 43°29′26″W / Armadilha Suspensa, 20–30.vi.2014, JAR, FLOGoogleMaps  , T.L. Rocha & G.A. Reis, cols. (1♂ MNRJ)  . idem, Guaribas, Parque Nacional Serra das Confusões, Andorinha , 515 m, 09°08′27″S, 43°33′42″W / Ar- madilha de Malaise, 15–31.vii.2013, JAR, FLOGoogleMaps  & T.T.A. Silva, cols. (pinned: 1♀ CZMA)  ; idem, 20–31.viii.2013 / MYTH 94 (1♂ INPA)  ; idem, 10–20.ix.2013 (pinned: 1♂ 1♀ CZMA, 1♂ INPA)  ; idem, 20–30.ix.2013 (pinned: 1♀ CZMA)  ; idem, suspensa dupla 20 meters, 11–20.viii.2013 (1♂ CZMA)  .

Geographical record. This species is known only from the Brazilian states Maranhão and Piauí ( Fig. 69View FIGURE 69), where the type series was collected in the Cerrado, Restinga, Caatinga and relict of Atlantic Forest biomes.

Remarks. Pieza rafaeli  sp. nov. differs from the other species from Brazil, in the absence of gonostyli in ventral and lateral views ( Figs 47–48View FIGURES 43–51) (gonostyli present in P. ankh  sp. nov., P. aurislepus  sp. nov., P. bittencourti  sp. nov., P. parakake  sp. nov., P. parnasecon  sp. nov., P. silvanae  sp. nov. and P. yeatesi  sp. nov. in ventral and lateral views, Figs 5–6View FIGURES 1–9, 14–15View FIGURES 10–17, 22–23View FIGURES 18–26, 31–32View FIGURES 27–34, 39–40View FIGURES 35–42, 56–57View FIGURES 52–60, 65–66View FIGURES 61–68).

INPA

Instituto Nacional de Pesquisas da Amazonia

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

PI

Paleontological Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Bombyliidae

Genus

Pieza