SCENOPINIDAE OF THE WORLD 137 



second segment larger, red-brown; third segment, black-brown, 

 pilose, elongate oval, over twice as long as first two segments combined. 



Thorax dorsum black-brown, with a pilose patch above the humeral 

 callus which is red-brown anteriorly with an orange ])osterior border; 

 supra-alar callus yellow-orange; scutellum red-brown; pleural areas 

 tlark red-brown; wings brownish, veins brown; halter stem brown, 

 knob red-brown above, white below. Legs: femora red-brown, 

 tibiae brown, tarsi straw 3^ello\\'. 



Abdomen dark red-brown. See figure for details of eighth segment 

 and bursa. 



Length: Male body 2.7 mm., wing 2.1 mm. ; female body 3.5 mm., 

 wing 2.3 mm. 



Type-locality: Yuma, Arizona; 6 July 1953 (Haga) on cotton. 



Holotype: Male (USNM) 68007. 



Allotype: Female Yuma, Arizona, 21 July 1953 (Haga) (USNM). 



94. Scenopinus howdeni, new species 



Figure 92 



Female. — Head black; eyes black-brown, with a narrow subshining 

 postocular band; frons rugose, with a narrow shining band along the 

 eye margins, swollen above the antennae, with a median groove 

 extending to the median ocellus, swollen between the ocellar tubercle 

 and upper corner of the eye; ocellar triangle flattened, cut off from 

 frons; ocelli orange. Mouthparts well developed; oral opening sur- 

 rounded by a white pubescence which extends over antennal bases; 

 genae shining. Antennae black-brown, first segment small; second seg- 

 ment twice as large, subshining; third segment granular, over twice 

 as long as wide. 



Thorax dorsum black-brown, striated, with a white pubescent 

 patch above the humeral callus, which is orange-brown; pleural 

 areas red-brown, subshining; wings hyaline, veins brown, cell R5 

 narrowing sharply at tij) of wing; halter stem red-brown, knob tan. 

 Legs with foreleg brown through tibia, tarsus cream, darkening 

 distally; middle leg with coxa and femur red-brown, tibia brown, 

 tarsus cream, darkening distally; hind leg red-brown except tarsus 

 cream, darkening distally. 



Abdomen red-brown. See figure for details of eighth segment and 

 bursa. 



Male. — Unknown. 



Length: Female body 4.4 mm., wing 3 mm. 



Type-locahty: S.W. Res. Sta., Portal, Arizona; 26 June 1956 

 (H. and A. Howden). 



Holotype: Female (CNC) 8958. 



