Nannotrigona pilosa Jaramillo, Ospina & Gonzalez, 2019

Jaramillo, Joanna, Ospina, Rodulfo & Gonzalez, Victor H., 2019, Stingless bees of the genus Nannotrigona Cockerell (Hymenoptera: Apidae Meliponini) in Colombia, Zootaxa 4706 (2), pp. 349-365 : 360-361

Nannotrigona pilosa Jaramillo, Ospina & Gonzalez , n. sp.

Figures 7 , 8 , 9

Diagnosis. This species shares with N. camargoi a mesoscutellum with a deep, semicircular emargination on its posterior margin and an antennal scape with short erect setae (0.5–0.6× width of scape). However, it can be separated from that species by the narrow emargination (at most 1.7× vs. at least 2.0× width of axilla), antenna usually light reddish brown (darkened in N. camargoi ), and face with appressed, plumose, light reddish brown setae completely obscuring integument (whitish setae and not obscuring integument in N. camargoi ). The short setae on the scape separates this species from N. occidentalis , N. mellaria , and N. tristella .

Description. Worker (paratypes in parentheses). Total body length 3.8 mm (3.8–4.4mm); head width 1.6 mm (1.5–1.9 mm); intertegular distance 1.3 mm (1.2–1.4mm); forewing length 3.7 mm (3.5–4.1 mm). Head 1.1× wider than long; malar area 1.3× wider than F3; clypeus about 1.5× broader than long; intertorular distance 1.1× than torular diameter, torulorbital distance 1.6× torular diameter; interocellar distance 2.2× OD, 1.2× longer than ocellocular distance; ocelloccipital distance 1.5× OD; scape 6.5× longer than wide, about as wide as F3; pedicel about as long as broad, shorter than F1, remaining flagellomeres broader than long, except apical flagellomere longer than broad. Mesoscutellum 2.0× broader than long, basal fovea v-shaped, about as long as broad, posterior margin with large median emargination, about 2.0× broader than long, lateral tooth acute.

Color black, except as follows: apical two-thirds of mandible and labrum reddish brown; antennae light reddish brown; lateral margin of mesoscutum, axilla, lateral tooth of posterior margin of mesoscutellum, outer surfaces of pro- and mesotibiae, and outer surface of metatibiae yellow; tarsi reddish brown. Wing membrane light reddish brown, veins and pterostigma brownish.

Pubescence yellow, except for appressed whitish setae on pronotal lobe. Antennal scape with simple, short (at most 0.6× width of scape) setae, along its inner margin. Mesoscutum with longer setae than those on vertex (2.4× OD); apical teeth of mesoscutellum with setae about 2.2× OD; pro- and mesotibiae with long setae (1.0–1.4× OD).

Clypeus and supraclypeal area with minute punctures; frons with contiguous, coarse punctures. Ocellocular area with scattered punctures. Mesoscutum and mesoscutellum foveate (0.3–0.4× OD).

Male. As described for the worker, except as follows: total body length 3.9–4.1 mm; head width 1.6 mm; intertegular distance 1.2–1.3 mm; forewing length 3.9–4.1 mm. Malar area 0.5× wider than F3; intertorular distance 1.5× than torular diameter, torulorbital distance 1.2× torular diameter; interocellar distance 1.8× OD, 1.6× longer than ocellocular distance; ocelloccipital distance as long as OD; scape 3.0× longer than wide, as wide as F3. Mesoscutellum 1.9× broader than long, basal fovea v–shaped, about as long as broad, posterior margin with large median emargination, about 2.6× broader than long. Metasomal S5–8 and genital capsule as in figures 9d–h.

Holotype. COLOMBIA: Valle del Cauca: ♀, Cali, UNIVALLE, Nido 1 Sergio. Martinez / LABUN26007 . Depos- ited in LABUN.

Paratypes. (n = 15♀, 2♂). One female ( LABUN26009 ) and one male ( LABUN26008 , LABUN26010 ) with the same information as the holotype ( LABUN). COLOMBIA: Valle del Cauca: 10♀, Caicedonia 6–III–07, J.H. Quicero / LABUN 21507–21 , LABUN 21525 ( LABUN); 4♀, Prov. Valle 7 Km SW Jamundi, 1100m, 14 feb 1977, M. Breed. C.D. Michener / SEMC1382084–87 KUNHM–ENT ( SEMC).

Additional material (not designated as type). (n = 13♀) COLOMBIA: Cauca : 3♀, Caloto 1124msnm 27-03- 08, M. Cepeda / LABUN20326–28 ( LABUN) . Quindío: 4♀, Armenia, Jardín Botánico, Nido , Bosque secundario, 18/02/2013 Ap. Amaya / LABUN26108–10 ( LABUN) . Valle del Cauca: 2♀, Cali , UNIVALLE, Nido 1 Sergio Mar- tinez / LABUN26007 , 09 ( LABUN) ; 4♀, ut supra 05/29/2012 / LABUN 25274–77 ( LABUN) .

Etymology. The specific epithet, “pilosa”, makes reference to the denser pubescence on the face of this species, when compared with that of other species of the genus.

Distribution. This species occurs in western Colombia, along the Cauca River valley ( Fig 7 ).

Figures

FIGURE 7. Collection localities of Nannotrigona Cockerell in Colombia.

FIGURE 8. Female holotype of Nannotrigona pilosa Jaramillo, Ospina & Gonzalez, n. sp. a = Dorsal habitus. b = Lateral habitus. c = Facial view (LABUN26007).

FIGURE 9. Male paratype of Nannotrigona pilosa Jaramillo, Ospina & Gonzalez, n. sp. a = Facial view. b = Lateral habitus. c = Dorsal habitus. d = Fifth sternum. e = Sixth sternum. f = Seventh sternum. g = Eighth sternum. h = genital capsule (a: LABUN26008; b–h: LABUN26010).