Souzalopesmyia polleti, Gomes L. R. P. & de Carvalho C. J. B., 2018

Gomes L. R. P. & de Carvalho C. J. B., 2018, Souzalopesmyia Albuquerque, 1951 (Diptera: Muscidae): new species from South America with an updated phylogeny based on morphological evidence, in Touroult J. (ed.), “ Our Planet Reviewed ” 2015 large-scale biotic survey in Mitaraka, French Guiana., Zoosystema 40 (25), pp. 539-546 : 541-543

Souzalopesmyia polleti n. sp.

(Figs 1; 2)

urn:lsid:zoobank.org:act:95C3C83E-1F2D-45B1-A592-816115815740

MATERIAL EXAMINED. — Holotype. ♂: First label: “(FR-GU) Guyane Française, Mitaraka, MIT-DZ, 02°14’01.8”N, 54°27’01.0”W, 306 m, tropical most forest (different sites) nr DZ, 6.iii.2015 - 10.iii.2015, FIT, leg. Julien Touroult & Eddy Poirier ( FR-GU/Mitaraka/2015 ) – sample code: MITARAKA/198 (sorted by Marc Pollet, 2015)”. Second label: “La Planète Revisitée Guyane 2015, MNHN PNI, APA 973-1”. Third label: “ Souzalopesmyia polleti n. sp. Gomes & de Carvalho det. 2017”. Fourth label: “HOLOTYPE” (red). Deposited at MNHN, MNHN-ED-ED-10612 .

Paratypes. 3 females. 1 ♀: First label: “(FR-GU) Guyane Française, Mitaraka, MIT-C-RBF2, 02°14’03.4”N, 54°26’53.0”W, 299 m, on vegetation along muddy trail and in swamp, 11.iii.2015, SW, leg. Marc Pollet (FR-GU/Mitaraka/2015) - sample code: MITARAKA/106 (sorted by Marc Pollet, 2015)”. Second label: “La Planète Revisitée Guyane 2015, MNHN PNI, APA 973-1”. Third label: “ Souzalopesmyia polleti n. sp. Gomes & de Carvalho det. 2017”. Fourth label: “PARA- TYPE” (green). Deposited at MNHN, MNHN-ED-ED-10613. 1 ♀: First label: “(FR-GU) Guyane Française, Mitaraka, MIT-C-RBF1, 02°14’10.8”N, 54°26’49.5”W, 258 m, tropical wet forest (bas fond), 24.ii.2015-27.ii.2015, BPT, leg. Marc Pollet (FR-GU/Mitaraka/2015) - sample code: MITARAKA/124 (sorted by Marc Pollet, 2015)”. Second label: “La Planète Revisitée Guyane 2015, MNHN PNI, APA 973-1”. Third label: “ Souzalopesmyia polleti n. sp. Gomes & de Carvalho det. 2017”. Fourth label: “PARATYPE” (green). Deposited at MNHN, MNHN-ED-ED-10614. 1 ♀: First label: “(FR-GU) Guyane Française, Mitaraka, MIT-A-RBF1, 02°14’11.4”N, 54°27’07.0”W, 306 m, tropical wet forest (bas fond), 27.ii.2015-4.iii.2015, YPT, leg. Marc Pollet (FR-GU/Mitaraka/2015) - sample code: MITARAKA/146 (sorted by Marc Pollet, 2015)”. Second label: “La Planète Revisitée Guyane 2015, MNHN PNI, APA 973-1”. Third label: “ Souzalopesmyia polleti n. sp. Gomes & de Carvalho det. 2017”. Fourth label: “PARATYPE” (green). Deposited at DZUP (DZUP 245598).

ETYMOLOGY. — Name in apposition. The specific epithet is in honor of Dr Marc Pollet (Research Institute for Nature and Forest – INBO, Brussels, Belgium), who collected and sent us the specimens herein described.

DIAGNOSIS. — Three long pairs of frontal setae. Proepisternal seta weak, about ¾ length of upper anepisternal setae. Upper postpronotal setae longer than half length of lower one. Sternite 5 concave on posterior margin. Cercal plate with margins of the posterior incision divergent. Phallapodeme enlarged on distal region.

DISTRIBUTION. — French Guiana.

DESCRIPTION

Male

Measurements. Body length: 7.5 mm. Wing length: 7.0 mm.

General coloration. Yellow. Ocellar triangle dark. Wings yellowish, veins light brown. Frons, fronto-orbital plate, antenna, pedicel, thorax, calypters, halter and legs yellow. Abdomen yellow with dorsal dark brown stripe on tergite 3, 4 and 5.

Head. Dichoptic, eyes separated by space measuring about one sixth of head width at vertex and covered sparse short and white setulae. Ocellar setae absent. Inner vertical seta strong and parallel. Three long pairs of frontal setae. Antenna long reaching epistome, postpedicel about six times longer than pedicel. Arista plumose. Palpus slender. Gena narrow on lowest eye margin, about same length of pedicel. Facial ridge setulose. Vibrissa long and strong. Postoculars as a single row of incomplete black setulae, reaching only basal half of eyes. (Fig. 1A, B).

Thorax. Prosternum bare. Dorsocentral setae 1+3. Intra-alars 1 + 2. Prealar absent. Acrostichals not distinct from ground setulae, except one postsutural acrostichal seta strong, half length of dorsocentral. Upper postpronotal setae longer than half length of lower one. One proepisternal seta weak, about ¾ length of upper anepisternal setae and one proepimeral seta strong, twice length of proepisternal. Notopleuron with two setae of almost the same length. Six anepisternal setae. Katepisternals 1+ 2 posterior twice length of anterior. Posterior spiracle small, triangular, with yellow cilia on its margin. Scutellum with two strong pairs of setae, one apical and one basal, both longer than length of scutellum; and a subbasal and preapical pair of setae half length of basal pair. (Fig. 1C, D).

Legs. Fore femur with a complete row of dorsal, posterodorsal and posteroventral setae. Fore tibia with one posterodorsal submedian setae. Fore tarsomere 1 with one ventral seta. Mid femur with three posteroventral setae on basal half and preapical setae on anterior, posterior and posterodorsal surfaces. Mid tibia with three posterior setae. Hind femur with strong preapical anteroventral seta, longer than femoral width and a row of anterodorsal setae; preapical setae on anterodorsal, dorsal and posterodorsal surfaces. Hind tibia with one anterodorsal and four anteroventral setae on apical half.

Wing. Veins bare, except costal; crossvein dm-cu straight; M slightly curved forward apically. Both calypters yellow, lower calypter glossiform.

Abdomen. Sternite 1 bare. General coloration yellow, with a narrow, slight, dark brown stripe on tergites 3, 4 and 5. Tergite 4 and 5 with two strong apical setae (Fig. 1H). Sternite 5 concave on posterior margin (Fig. 2A).

Terminalia. Cercal plate with margins of the posterior incision divergent in dorsal view; inner and external surfaces with setae (Fig. 2B); surstylus with few setae (Fig. 2C). Phallic complex with phallapodeme enlarged on distal region; epiphallus and postgonite subequal in length (Fig. 2D).

Female

Body. Body length: 7.5-8.0 mm. Wing length: 6.5-7.0 mm. Similar to male, differing as follows: eyes separated by space measuring about one third of head width at vertex. 3-4 pairs of strong frontal setae, one cruciate, one reclinate convergent and 1-2 reclinate divergent. Postocular setae forming a complete single row of black setae, from top of head to vibrissa (Fig. 1E-H). Four anepisternal setae. Sternites 6 and 7 quadrangular, sharpened on anterior region. Hypoproct trapezoid. Epiproct hexagonal. Cercus longer than hypoproct, with setae on inner and outer surfaces. Three round spermathecae (Fig. 2E-G).

REMARKS

This species is similar to S. paraensis , but S. polleti n. sp. can be distinguished by upper postpronotal setae that are longer than half-length of lower one; male sternite 5 concave on posterior margin; cercal plate with margins of the posterior incision divergent in dorsal view; inner and external surfaces with setae; distal region of phallapodeme enlarged.