Ommatius Tibialis

Scarbrough, Aubrey G., 2008, New Ommatius Wiedemann from the Americas with two new species groups, keys, and taxonomic notes (Diptera: Asilidae), Insecta Mundi 2008 (32), pp. 1-14: 12-13

publication ID

http://doi.org/10.5281/zenodo.4532943

persistent identifier

http://treatment.plazi.org/id/FF501F05-2D3E-FF95-FF06-F97D6E3FFC88

treatment provided by

Felipe

scientific name

Ommatius Tibialis
status

 

Ommatius Tibialis   SPECIES GROUP

Thirteen species of Ommatius   have been recorded in North America, largely from the southern United States (Stone et. al. 1965; Bullington and Lavigne 1984). Of these, eight ( O. floridensis Bullington and Lavigne, 1984   ; O. maculatus Banks, 1911   ; O. oklahomensis Bullington and Lavigne, 1984   ; O. ouachitensis Bullington and Lavigne, 1984   ; O. parvulus Schaeffer, 1916   ; O. texanus Bullington and Lavigne, 1984   ; O. tibialis Say, 1823   ; O. wilcoxi  

Bullington and Lavigne, 1984) constitute the tibi-

alis species group. The Nearctic species are distin-

guished as follows: 1) absence of marginal scutellar

and anepimeral bristles; dorsoapical margin of the

epandrium abruptly narrowed or notched, apex

narrow and broadly or acutely pointed; 3) horizon-

tal, stylet-like distiphallus; 4) aedeagus with a spine-

like ventral process, e.g. ventral spire ( Bullington

and Lavigne 1984); 5) wing of male usually slightly

to moderately dilated anteriorly; and 6) the shallow

W- or U-shaped apical margin of sternite 8 in fe-

males. Ommatius gemma   , a wide spread eastern

species, is tentatively placed in the costatus group

based upon 1) the presence of marginal scutellar

bristles; 2) epandrium unusually narrow apically,

without a preapical notch anteriorly; 3) aedeagus

without a ventral spire; and 4) sternite 8 in the

female strongly produced anteriorly, the apical

margin broadly rounded and bearing a short point

medially.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Asilidae