Oropezella
Creators: name: Ale-Rocha, Rosaly
name: Freitas-Silva, Rafael Augusto Pinheiro De
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Hybotidae
Oropezella

description: Key to the Neotropical and Andean species of Oropezella
(partially adapted from Smith, 1962)
1 Stylus lacking; cell dm emitting three veins; abdomen darkly sclerotized (Chile).................. O. abdominalis Collin
- Stylus present; cell dm emitting two veins (Figs 109–124); abdomen not darkly sclerotized........................... 2
2 Four ocelli; antenna located on top of head, in front of ocelli; frons absent (Southern and Southeastern Brazil)...................................................................................... O. pseudotetraocellata Ale-Rocha
- Three ocelli; antenna located above middle of head but not on top, frons visible................................... 3
3 Thorax dark brown with longitudinal yellow stripe; cell cup lacking (Fig. 112) (Northern Brazil)....... O. bicolor sp. nov.
- Thorax with coloration variable, usually paler; cell cup present................................................ 4
4 Scutum with metallic blue shine and pruinescence only on prescutellar disc...................................... 5
- Scutum lacking metallic blue shine and usually entirely pruinose............................................... 7
5 Frons long and holoptic (Northern Brazil).................................................... O. uncata sp. nov.
- Frons short and distinctly dichoptic...................................................................... 6
6 Frons moderately short, twice the length of ocellar triangle, very narrow, width less than ocellar diameter (Southern Brazil)....................................................................................... O. metallica Smith
- Frons very short, as long as length of ocellar triangle, widened, as wide as ocellar diameter (Southern and Southeastern Brazil)........................................................................................ O. biloba Smith
7 R1 long, reaching wing margin at or beyond middle of wing (Figs 110, 113, 116, 119, 121, 122)....................... 8
- R1 short, reaching wing margin before middle of wing (Figs 109, 111, 114, 115, 117, 118, 120, 124).................. 18
8 Thorax margined with yellowish brown, blackish or dark brown on dorsum and heavily dusted with yellowish pruinescense; if in doubt, then at least postpronotal lobe and postalar callus yellow.............................................. 9
- Thorax predominantly yellow with lateral brown marks, or uniformly brown or black, pruinescense variable........... 14
9 Eyes distinctly separated on frons, at least just below ocellar notch............................................ 10
- Eyes holoptic or narrowly separated on frons.............................................................. 11
10 Eyes separated over entire frons; hind tibia blackish near apex, mid and hind tarsi black; surstyli elongate and slender (Figs 80, 83, 84) (Southern Brazil).................................................................. O. rafaeli sp. nov.
- Eyes almost touching just above antennae; hind tibia yellow, mid and hind tarsi yellow except tarsomeres 3–5 brownish; sur- styli shortened and rather robust (Figs 67, 70, 71) (Midwestern Brazil)............................. O. planti sp. nov.
11 Mesopleuron light brown with a median longitudinal yellow stripe or entirely yellow; scutellum yellow to brown, with apical blackish mark...................................................................................... 12
- Mesopleuron blackish-brown; scutellum blackish (Southern Brazil)............................. O. marginata Smith
12 Frons length 9 times diameter of anterior ocellus, longer than antenna (stylus omitted); distance from tip of R2+3 to tip of R4+5 more than half the distance from h to R1, radial sector longer than distance between tip of Sc to tip of R1 (Fig. 122); fore tar- someres 1 and 2 with well developed setae only apically (Southeastern Brazil)..................... O. spathula sp. nov.
- Frons with length 5–7 times diameter of anterior ocellus, shorter or sub-equal in length to antenna (stylus omitted); distance from tip of R2+3 to tip of R4+5 less than half distance from h to R1, radial sector shorter than distance between tip of Sc to tip of R1 (Fig. 113); fore tarsomeres 1 and 2 with several well developed setae across their length.......................... 13
13 Postpronotal lobe largely yellow, thorax with well developed brownish setae; fore tarsomeres 1 and 2 with thin elongate setae, hind tarsomere 1 uniformly dark brown bearing uniformly short setae; distal margin of tergites 7 and 8 bearing thin long setae; left epandrial lamella with short dorsoapical process (Figs 25, 27) (Southern Brazil)............... O. bipunctata sp. nov.
- Postpronotal lobe brown with yellow apical point, thorax with well developed black setae; fore tarsomeres 1 and 2 with strong setae, hind tarsomere 1 yellow near base and dark brown on apical third, setae longer towards apex; distal margin of tergites 7 and 8 bearing black strong setae; left epandrial lamella with a very long dorsoapical process (Figs 30, 32) (Southern Brazil)...................................................................................... O. clavata sp. nov.
14 Scutum yellow with brown marks on hind corners (Southern Brazil).............................. O. flavida sp. nov.
- Thorax homogeneously brown or black.................................................................. 15
15 Tarsomeres 1 and 2 pale yellow with a distinct brown band near apex (Southern Brazil)............ O. annulitarsis Smith
- Tarsomeres 1 and 2 variable; if yellow, usually gradually darkened distally, without distinct brown band.............. 16
16 Mid tibia with anterior bristle near middle................................................................ 17
- Mid tibia with anterior bristle distinctly near base (Southern Brazil)................................. O. arara Smith
17 Thorax brown with margins of scutum slightly paler; mid femur bearing anteroventral bristles; hind femur and tibia brown, hind tarsus darker than fore and mid tarsi (Southeastern Brazil)................................... O. taquara Smith
- Thorax homogeneously black; mid femur lacking anteroventral bristles; hind femur and tibia black, except brownish femur- tibial articulation, black (Southern and Southeastern Brazil)...................................... O aquila sp. nov.
18 Frons short and evident, eyes distinctly dichoptic.......................................................... 19
- Frons long and narrow or absent, eyes holoptic or narrowly dichoptic.......................................... 20
19 Postpedicel conical, stylus apical; scutum completely covered by yellow tomentum; R1 ending at middle of wing (Fig. 120) (Southern Brazil).................................................................... O. plaumanni sp. nov.
- Postpedicel ovate, stylus sub-dorsal; scutum mostly shining, tomentum restricted to margins; R1 short, ending before middle of wing (Fig. 109) (Northern Brazil).................................. O. amazonica (Rafael & Ale-Rocha) comb. nov.
20 Scutum distinctly bicolour, yellow in the anterior third/half, and brown in the remainder, entirely pruinose............ 21
- Scutum mostly brown, yellowish on the extreme anterior margin, pruinosity variable.............................. 23
21 Mesopleuron with yellowish median longitudinal stripe (Northern Brazil)......................... O. undulata sp. nov.
- Mesopleuron pale brown to dark yellow on dorsal portion (anepisternum, anepimeron and laterotergite) and yellow on ventral portion (katepisternum and meron) and mediotergite (Costa Rica)............................................. 22
22 Two npl setae (1 ventral short and discreet and 1 long and stout above); hypandrium about 1.5 times longer than wide with truncate apex; right surstylus with base wider than apex, with small pointed process at middle of ventral margin (Fig. 58); left surstylus ventrally curved inwards, with apex clavate, distal half covered by lumpy circular marks (Fig. 57); articulated distal portion of phallus elongate, more than two-thirds of length of phallic shaft with apical bifurcate portion long, basal process about one-third length of articulated distal portion of phallus (Fig. 56)........................... O. granulosa sp. nov.
- Four npl setae (3 lower short and slender, 1 long and stout above); hypandrium elongate, about 2.3 times longer than wide with slightly concave apex; right surstylus sub-triangular with apex elongate and narrowed (Fig. 13); left surstylus simple, falciform, curved dorsally (Fig. 12); articulated distal portion of phallus short, about one-third length of phallic shaft and basal process very short (Fig. 11)................................................................. O. arcuata sp. nov.
23 Mesopleuron yellow; frons at least four times length of ocellar triangle (Northern Brazil)........... O. longifrons sp. nov.
- Mesopleuron mostly brown, sometimes with the dorsal margin of sclerites yellowish; frons never more than three times length of ocellar triangle (Costa Rica)......................................................................... 24
24 Scutum variable, entirely covered by pruinescence or with wide shiny presutural area lacking pruinescence; ventral margin of hypandrium slightly concave (Fig. 39); inner margin of right surstylus smooth (Fig. 39); left surstylus not expanded distally, without rounded marks on outer surface (Fig. 42)............................................. O. falcata sp. nov.
- Scutum with wide shiny presutural area lacking pruinescence; ventral margin of hypandrium slightly convex (Fig. 34); inner margin of right surstylus serrated (Fig. 34); left surstylus expanded distally with lumpy circular marks on outer surface (Fig. 37).............................................................................. O. costaricensis sp. nov.
description: Published as part of Ale-Rocha, Rosaly & Freitas-Silva, Rafael Augusto Pinheiro De, 2014, New species of Oropezella Collin (Diptera, Hybotidae, Ocydromiinae) from Brazil and Costa Rica, with comments on the relationships among species-groups, pp. 501-539 in Zootaxa 3852 (5) on pages 504-505, DOI: 10.11646/zootaxa.3852.5.1, http://zenodo.org/record/229686