Ommatius (Pygommatius) albatus Martin
publication ID |
https://doi.org/ 10.11646/zootaxa.228.1.1 |
publication LSID |
lsid:zoobank.org:pub:AC9F77DE-F702-4620-B756-D753E77FBC73 |
DOI |
https://doi.org/10.5281/zenodo.5080315 |
persistent identifier |
https://treatment.plazi.org/id/03A9FF3D-FFCB-FFDF-9D15-5960FD1BC0DC |
treatment provided by |
Felipe |
scientific name |
Ommatius (Pygommatius) albatus Martin |
status |
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Ommatius (Pygommatius) albatus Martin View in CoL
Figs. 2 View FIGURES 110 , 6269 View FIGURES 6269
Ommatius albatus Martin, 1964: 312 View in CoL . Holotype ♂, type locality Nosy Komba : Ampangorinana, Madagascar (NHMB). Not examined.
Ommatius albatus: Oldroyd, 1980: 347 View in CoL (Afrotropical catalogue).
Redescription, male. Black. Length, body 10.4 mm; wing 7.5 mm. Head: White tomentose, mostly white setose. Face ventrally with dense white setae, slightly drooping, 23 long, thin bristles, 1 black; pencillike bristles absent: FHWR 1.0:5.410:5.5. Proboscis with narrow base yellow. Antenna mostly black or white setose. Occiput with 57 black postocular bristles, longest bristle onehalf to twothirds distance toward ocellar tubercle.
Thorax: Mesonotum dense brown tomentose between dorsocentral rows, 2 lighter brown spots laterally, sides gray tomentose; bristles and most setae black, anterior dorsocentral setae subequal in length to pedicel and scape; 4 lateral and 45 dorsocentral bristles present; white setose between dorsocentrals posteriorly. Scutellum gray tomentose, scattered long, white setae and 2 black marginal bristles present. Pleuron black, gray tomentose, white setae and bristles present. Halter yellow.
Wing ( Fig. 2 View FIGURES 110 ): Apical third to apical half posteriorly dense microtrichose. Cell r 4 unusually wide. Cell m 3 with apex perpendicular to wing axis, near rm.
Leg: Fore coxa and narrow apex of middle coxa yellow, coxae otherwise black; gray tomentose; bristles and setae white to pale yellow, bristles thin. Femora mostly yellow, onehalf to twothirds black apically; ventral bristles absent, only thin, mostly white, setae present; apical half of hind femur with black posteroventral setae; HFWLR 1.0:6.7 1.0:6.8. Fore and middle tibiae pale yellow with lateral fringe of dense white setae. Hind tibia with apical half to twothirds black, white setose anteriorly. Fore and middle tarsi with basal 4 tarsomeres mostly pale yellow, narrow apices brown, apical tarsomeres black; hind tarsus entirely black. Fore tarsus dorsally and laterally with white setae and 4 yellow bristles; lateral setae long, more dense than elsewhere, fringelike.
Abdomen: Black. Brown tomentose dorsally, gray ventrally; setae mostly white, mostly brown on apical 3 tergites. Sternites 4 5 with several, erect, yellow bristles.
Terminalia ( Figs. 6266 View FIGURES 6269 ): Ventral lamella with abundant setae. Epandrium with dorsal branch short, curved ventrally; median branch long, podiform; ventral branch much shorter, forked apically, clawlike laterally. Hypandrium with ‘beard’ of black setae, surface of setae scaly.
Female. Differs from male as follows: Length: Body 11: 012.5mm; wing 8.89.3 mm. Head: Face and frons yellow tomentose; mystax with sparse black and white setae, 3 thin, black bristles present. Antenna black setose. FHWR 1.0:5.81.0:6.0. Thorax: Most katatergal bristles black. Leg: Middle coxa mostly yellow, narrow base black; black and white vestiture present. Femora with apical third black; apical third of hind femur posteriorly with black bristles; HFWLR 1.0:6.01.0:6.1. Fore and middle tibiae and fore tarsus without lateral fringe of white setae, bristles black except 1 yellow on fore tarsus; hind tibia anteriorly with basal half white setose. Abdomen: Most tergites and sternites 78 mostly or entirely black setose, white elsewhere. Tergite 9 strongly emarginate anteriorly and posteriorly, straplike mediodorsally. Sternites 45 without erect bristles. Terminalia ( Figs. 67 69 View FIGURES 6269 ): Three spermathecae present, apex pointed; duct prebasal and lateral. Apical margin of sternite 8 slightly concave medially.
SPECIMENS EXAMINED. MADAGASCAR: 1 ♂, Tananarive , 11.iii.1950, Id. Oldroyd 1971 ( CASC); 2 ♂, 3 ♀, Madagascar N., Ambohitra 800m, Joffreville, 912.iv.1991, A. Freidberg and Fini Kaplan ( NMSA) .
Distribution. Forest species captured from March and April at 800 meters in elevation in Madagascar.
Remarks. In addition to the characters in the key, the male of O. albatus is further distinguished by the stout, erect bristles of sternites 45 and the female by the emarginate apical margin of sternite 8 ( Fig. 69 View FIGURES 6269 ).
NMSA |
KwaZulu-Natal Museum |
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