Annals of the South African Museum. 



terebra longer than basal segment ; thoracic spiracles circular ; areolet 

 small, not rhomboidal ; ? flagellum not pale-banded ; lateral petiolar 

 sulci wanting ; apical abscissa of radial nervure longer than basal ; 

 lower basal nervure not cleterminately oblique. 



OMORGA SORDICINCTA, sp. nov. 



3 ? . A small black species with white pubescence ; the apices but 

 not sides of the second and following segments indefinitely and the 

 legs dull testaceous, and hind legs inf uscate ; mandibles, palpi, radices, 

 tegulse and apices of at least the ? hind trochanters, dull stramineous. 

 Head posteriorly constricted ; antennae slightly longer than head and 

 thorax, of which the metauotal carinae are strong ; basal area and 

 costulae entire ; areola hexagonal and apically incomplete to the trans- 

 strigose petiolar area. Abdomen dull ; basal segment not longer than 

 terebra, with slender petiole and ovate, abruptly explanate postpetiole : 

 ventral plica flavous. Stigma and costa pale piceous ; areolet small 

 and petiolate, emitting recurrent uervure from its centre; radial 

 apically straight; nervellus geniculate below its centre. Length, 

 5 mm. It is most closely allied to 0. multicincta, Grav. 



A single pair, of which the female is type, was captured in the south- 

 western district of Cape Colony. 



OMORGA EXAREOLATA, sp. nov. 



? only. A black species with white pubescence and unicolorous red 

 femora, tibiae and tarsi ; palpi, mandibles except apices, trochanters 

 except base of hind ones, the calcaria and sides of second segment 

 narrowly, stramineous ; tegulae pure white. Head not strongly 

 narrowed posteriorly; antennae extending to second segment, with 

 scape apically dull testaceous beneath. Metathorax a little excavate 

 with two trans-cariuae, both centrally emargiuate, and neither areae 

 nor longitudinal carinae. Abdomen dull black with the ventral plica 

 iuf uscate and lateral margin of second segment very narrowly strami- 

 neous ; postpetiole ovate and abruptly explanate, not longer than the 

 reflexed terebra. Stigma and nervures nigrescent ; basal nervure con- 

 tinuous ; areolet wanting. Length, 7 mm. Differs from whole 

 remainder of genus in its utter lack of areolet, wherein it resembles 

 Hymenobosmina, which has elongate thoracic spiracles, and Diodes, 

 which has straight and postfurcal nervellus, but in its other features 

 most closely approaches 0. Faunus, Grav. 



It was taken at Bulawayo, South Ehodesia, by H. C. Pead duriup- 

 1912. 



