KHOGAS. 389 



EHOGAS. 



Hogas, Nees, Act. Acad. Leop. -Carol. Nat. Cur. 1818, p. 306. 

 Rhogas, Marshall, Cat. Brit. Hymen, p. 100 (1872). 



This genus has a wide geographical range in both hemispheres, and contains 

 numerous species. 



A. Middle joints of the palpi not enlarged. 

 a. Eyes deeply incised, reaching to the base of the clypeus. 



1 (2) . Legs black ; wings smoky fumipennis. 



2 (1) . Legs pale testaceous ; wings hyaline mexicanus. 



s^K 1. Khogas fumipennis. 



Thorace rufo, abdomine flavo-testaceo, capite, antennis, prothorace pedibusque nigris ; alis fumatis. 

 Long. 10-11 millim. 



Eab. Mexico. 



Antennae moderately stout, densely microscopically pilose, the joints scarcely separ- 

 able ; the scape covered with long hair. Face covered with long fuscous hair, projecting 

 in the middle, punctured; front and vertex shining, impunctate, the former a little 

 depressed in the middle and also close to the eyes, and with a furrow in the centre ; eyes 

 margined, rather long, incised on the inner side above the antenna?, reaching below the 

 middle of the base of the clypeus ; the head narrowed and not much developed behind 

 the eyes. Pro- and mesothorax shining, impunctate ; parapsidal sutures deep, not very 

 wide ; metanotum sparsely covered with long fuscous hair, finely rugose, the central keel 

 distinct, stout, bifurcating towards the apex ; the oblique furrow on the mesopleurae 

 rather long, narrow, and situated below the middle ; the furrow on the mesosternum 

 obsolete. Abdomen a little longer than the head and thorax united ; the first and second 

 segments, and the basal half of the third, closely and finely rugose, a keel down the centre 

 of the first and second. Petiole with the extreme base depressed, and smooth and shining 

 in the centre ; without furrow along the sides above. Tibia? and tarsi closely and stiffly 

 pilose ; the rest of the legs sparsely covered with hair. Wings shorter than the body, 

 of nearly uniform colour ; stigma fuscous on the lower side ; the recurrent nervure received 

 before the first transverse cubital nervure and in the first cubital cellule ; the second 

 cubital cellule not half the length of the third, and shorter than the first on the lower 

 side. 



2. Khogas mexicanus. (Tab. XV. fig. 22, e .) 



Flavo-luteus, antennis nigris, abdomine flavo; alis hyalinis, nervis fuscis, stigmate flavo. <$ $ • 

 Long. 9 millim. 



Hab. Mexico, Presidio (Forrer). 



