312 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



Genitalia dark brown; aedeagus as in plate 7, figure 40; ejaculatory 

 apodeme as in plate 13, figure 108. 



Female: Unknown. 



HoLOTYPE : Male, 1 mile west of Villeta, Cundinamarca, Colombia, 

 Mar. 8, 1955, elevation 860 meters, on top of rock pile (E. I. Schlinger, 

 CAS). 



Remarks: Although the author spent seven months in Peru, Co- 

 lombia, and Ecuador during 1954-1955, this male was the only Ogcodes 

 specimen taken. This is one of the three species now known from 

 this region outside of Chile and is therefore of especial interest from 

 the standpoint of distribution. 



The Nearctic species dispar, which ranges as far south as Costa 

 Rica, is probably the nearest relative of colombiensis. On the basis 

 of color, the latter species is similar to chilensis, which, however, is a 

 member of the eugonatus group and therefore not closely related. 0. 

 hrasilensis, which superficially resembles colombiensis, is actually quite 

 different in the structure of the male genitalia and is apparently only 

 related geographically. In the same way, argentinensis is more closely 

 connected with Nearctic species than with colombiensis. 



Ogcodes (Ogcodes) brasilensis, new species 



Plate figures 50, 106 



Species of group v. 



Male: Length of entire specimen 6.60 mm., wing length 5.30 mm. 



Head dark brown except for black occiput and hght brown antenna; 

 antenna \vith rather long, thin style which has one apical seta. 



Thorax light brown except for reddish brown on three longitudinal 

 vittae (median vitta present only for anterior three-fourths, lateral vitta 

 present from wing base to postalar callus) , lateral margins of scutellum, 

 basal one-half of metanotum, spot on propleura, spot in front of 

 prothoracic pleura and spot on tegula; metanotum plainly visible as 

 abdomen is not highly arched anteriorly; notum entirely covered with 

 short golden brown pile; legs mostly light brown except for dark 

 brown anterior spot on mid and hind coxae, tarsal apices, claws and 

 pulvilli; hind femur and tibia swollen apically and of nearly equal 

 length; wing heavily infuscated throughout, veins strong and dark 

 brown; vein Mj present and reaching wing margin, r-m crossvein 

 present only as an infuscated line, not a true vein, vein Ma strong 

 only distally where it reaches wing margin, m-cu crossvein absent, 

 anal vein weak but nearly approaching Cug at wing margin, anal 

 axillary vein strong, arclike; squama nearly opaque, evenly dark 

 brown, halter knob dark brown, its stem yellow. 



Abdomen quite long and narrow, about two times longer than wide, 

 rather evenly light brown with narrow whitish brown posterior tergal 



