Ommatius lucidatus, Scarbrough, 1997

Scarbrough, Aubrey G. & Perez-Gelabert, Daniel E., 2006, A review of the asilid (Diptera) fauna from Hispaniola with six genera new to the island, fifteen new species, and checklist, Zootaxa 1381, pp. 1-91 : 70

Ommatius lucidatus species group

The 4 new species, together with 4 earlier species ( Scarbrough & Perez-Gelabert, 2003) and 2 extinct species ( Scarbrough & Poinar, 1993; Scarbrough, 2001), form a distinct cluster of species here designated the lucidatus species group. The group is distinguished by the following combination of characters; 1) slender body with thin legs; 2) face at the base of the antenna>1/7 as wide as the head; 3) the fore femur (♂) with pale yellow hooked setae posteriorly; 4) the tibial and tarsal bristles unusually long, at least 2/3 as long as the leg part; 5) the hind basotarsomere, sometimes the second basotarsomere, is swollen, about 1/4 wider than tarsomeres 3–5; 6) sternites 6–7 (♂) with complex pattern of rows and clusters of setae and bristles, bristles often compressed or close spaced forming dense mass or angular structures; 7) setae and bristles are often modified apically, i.e. pencil-shaped, only slightly tapered apically; hooked or angled about 45 degrees; apex round, not acuminate; capitate as a knob or flat horizontal plate; apex flattened vertically, wider than shaft and with notched apex; 8) gonostylus minute, aedeagus tubular, horizontal, slightly curved dorsally; 9) sternite 8 (♀) longer than wide with medial fissure apically; and 10) the oval spermatheca. The following key will separate the known species of this group from the remaining Hispaniolan Ommatius species [see Scarbrough & Perez- Gelabert, 2003 for key]. Although members of this group are presently known only from the Dominican Republic, it is reasonable to assume that they occur across Hispaniola.