194 U.S. NATIONAL MUSEUM BULLETIN 277 



133. Brevitrichia helenae (James) 



Figure 127 



Pseudatrichia helenae James, 1938, p. 22. 



I am indebted to Dr. James for the loan of the paratype male for 

 figuring. All attempts to locate the type have failed. 

 Length: Male body 2-2.5 mm.; wing 1.8 mm. 

 Type-locality: Roggen, Colorado; 29 May 1937 (Helen B. James). 

 Type: (CSU) lost. 

 Paratype : 1 cf , same data (MTJ) . 



134. Brevitrichia hodgdeni, new species 



FiGTTRE 128 



Male. — Head tan; eyes red-brown, with a metallic sheen, darker 

 below; frons narrow, triangular; ocellar tubercle red-brown, ocelli red- 

 brown; antennae black-brown. See figure for details. 



Thorax dorsum black, covered with brown and tan poUinose scales 

 in longitudinal bands; lateral margins yellow-orange; humeral and 

 supra-alar calli orange; scutellum with a large central spot one-half 

 of its width, lateral angles yellow-orange. Pleural areas red-brown and 

 yellow in the usual arrangement, pollinose; wings smoky brown, veins 

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

 tibiae orange, tarsi orange basally to dark brown distally. 



Abdomen dark red-brown, scarcely lighter along posterior margins; 

 ninth segment red-brown, with tan margins; see figure for details. 



Female. — Head tannish-brown, eyes dark red-brown, metallic, a 

 broad postocular rim with a red-brown patch laterad of the corner of 

 the eye; frons broad, with a median groove bordered by red-brown 

 bands; sulcus from corner of eye to lateral ocelli cuts off frons from 

 postocular ridge; ocellar tubercle black-brown, pollinose; ocelli black. 

 Antennae black-brown. See figure for details. 



Thorax as in male. 



Abdomen as in male, eighth segment red-brown, shining; ninth 

 tergum with one dorsal spine and 7 pits. See figure for details. 



Length: Male body 3 mm., wing 2.1 mm.; female body 3.7 mm., 

 wing 2.2 mm. 



Type-locality: Lake City, California; 15 July 1941 (Burt Hodg- 

 den). 



Holotype: Male (UKan) 6293. 



Allotype: Female same data (UKan). 



