SCENOPINIDAE OF THE WORLD 175 



Thorax dorsum black-brown, covered with gray pollen, hairs 

 sparse, short; humeral and supra-alar calli cream; scutellum broadly 

 red-brown, covered with gray pollen, lateral margins cream. Pleura 

 red-brown, with patches of yellow, covered with gray pollen; wing 

 smoky, veins tan; halter stem tan, knob creamy white; legs red-brown, 

 covered with gray pollen. 



Abdomen red-brown, segments with narrow cream-colored mem- 

 branous posterior margins; ninth tergum distinctive, ending in points; 

 see figure for details. 



Female. — Head cream; eyes red-brown, with green metallic sheen; 

 frons broad with a median yellow-brown band covered by anteriorly 

 directed hairs; postocular ridge moderately broad, without a brown 

 patch, separated from frons by a shallow groove from the corner of 

 the eye to back of lateral ocellus. Ocellar tubercle red-brown, covered 

 with a gray pollen; antennae red-brown; see figure for details. 



Thorax dorsum, pleura, and humeral callus as in male. Wing 

 hyaline, veins light brown; halter stem light brown, knob cream 

 below, tan above. 



Abdomen red-brown, eighth segment red-brown, shining; ninth 

 tergum with 8 stiff spines and a ventral pit. See figure for details. 



Length: Male body 2.5 mm., wing 1.7 mm.; female body 3.7 mm., 

 wing 2.3 mm. 



Type-locality: 25 mi. w. Tularosa, New Mexico; 1 July 1940 

 (R. H. Beamer). 



Holotype: Male (UKan) 6292. 



Allotype: Female, paratype female, Alamogordo, New Mexico; 

 15 May 1902 (Viereck and Rehn) (ANS). 



123. Brevitrichia bohartij new species 



Figure 117 



Male. — Head cream; eyes metallic blue-green above, darker 

 below, frons small, triangular; ocellar tubercle red-brown, dusted 

 gray pollinose; back of head brown. Antennae with first segment 

 tan, second and third segments orange-brown; see figiu-e for details. 



Thorax dorsum black-brown, dusted with olive pollen, anterior 

 portion above humeral callus tan; humeral and supra-alar calli tan; 

 mesoscutellum tan, with brown central spot covering half of the 

 upper surface. Propleuron cream, mesanepisternum cream, with one 

 brown patch, mesokatei)isternum red-brown. Wings smoky, veins 

 tan; halter stem red-brown, knob cream. Legs with femora brown 

 to black-brown, with light knees, tibiae and tarsi tan to brown, 

 darkening dis tally. 



