Retrocitomyia Lopes
Creators: name: Mello-Patiu, Cátia Antunes De
name: Salazar-Souza, Mônica
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sarcophagidae
Retrocitomyia

description: Key to males of Retrocitomyia Lopes
(modified from Lopes [1985])
1 Fronto-orbital plate silvery pruinose...................................................................... 2
- Fronto-orbital plate yellowish or golden pruinose............................................................ 4
2 Gena silvery pruinose with only black setae; postgonite parallel to body axis, i.e. apex turned anteriorly................................................................................................... argentina Lopes, 1988
- Gena golden or yellowish pruinose with only pale setae; postgonite perpendicular to body axis, i.e. apex turned laterally.... 3
3 Cercus with a central-median tuft of short setae and external margin slightly constricted and sinuous (posterior view, Fig. 1 9)................................................................................... adolenda (Lopes, 1935)
- Cercus without such a tuft of setae, external margin almost straight, without any constriction (posterior view, Fig. 18)......................................................................................... retrocita (Hall, 1933)
4 Gena with all or most of the setae black................................................................... 5
- Gena with most of the setae pale, with some black setae only along the upper genal margin........................... 7
5 Cercus broad, cercal prongs conspicuously broad and divergent (posterior view); coverage of setae on cercus interrupted in the middle and cercus with a projection carrying a tuft of setae near the base (Fig. 15)............... fluminensis Lopes, 1985
- Cercus and cercal prongs not conspicuously broad; coverage of setae on cercus uninterrupted and cercus without a projection near its base......................................................................................... 6
6 In lateral view, vesica subtriangular with a median excision; juxta with a narrow and not globose base (Fig. 22)................................................................................................ andina Lopes, 1985
- In lateral view, vesica rounded and without a median excision; juxta with an expanded and globose base (Fig. 21).......................................................................................... trinitatensis Lopes, 1985
7 Cercal prong gradually tapering in posterior view, with an acute apex and a central depressed area with a cluster of setae (Fig. 16).................................................................... mizuguchiana Tibana & Xerez, 1985
- Cercal prong curved and convergent in posterior view, with a rounded apex and without a central setose depressed area (Figs. 14, 17, 23, 24)....................................................................................... 8
8 Outer margin of cercus medially constricted, length of cercal prong equal to or slightly longer than cercal base; cercal depression inconspicuous (Figs 14, 17, 23)...................................................................... 9
- Outer margin of cercus without a median constriction, cercal prong shorter than cercal base; cercal depression conspicuously large (Fig. 24)................................................................... urumajoensis Lopes, 1985
9 Median region of cercus with a setose, rounded elevation near its inner margin (Fig. 23)........... mexicana Lopes, 1985
- Median region of cercus without such elevation............................................................ 10
10 Cercus, in posterior view, with a cluster of short setae from the middle of the cercal base to the base of the cercal prong; vesica with apex bent laterally; juxta longer than wide (Figs 2, 7, 14)............. sisbiota Mello-Patiu & Salazar-Souza, sp. nov.
- Cercus, in posterior view, with a cluster of long, hair-like setae along the inner margin of the of the prong; apex of vesica not bent; juxta wider than long (Figs 12, 17)............................................. paraguayensis Lopes, 1985
description: Published as part of Mello-Patiu, Cátia Antunes De & Salazar-Souza, Mônica, 2016, Retrocitomyia Lopes, 1982 (Diptera: Sarcophagidae): new species, new records, key to males, and an updated catalog, pp. 534-548 in Zootaxa 4171 (3) on pages 544-545, DOI: 10.11646/zootaxa.4171.3.8, http://zenodo.org/record/255637