OF WASHINGTON. 



137 



and bearing 10 marginal bristles; postmarginal absent; stigmal very 

 short and curving very slightly into disc of wing, about as with Prospalta, 

 and ending at about one-half the wing length. Legs stout, femora some 

 what swollen, tarsal joints I, 2 and 4 subequal in length, 3 somewhat 

 shorter; hind tibiae with a single spur, nearly as long as first tarsal joint; 

 middle tibiae each with two minute apical spurs. 



Female. Differs mainly in antennae. Funicle joints i and 2 small, sub- 

 equal in length, little wider than long, each shorter than pedicel; 3 as 

 long as i and 2 together; joint I of the long club longer than the other 

 two joints, which are subequal in length. Entire flagellum subcylindrical, 

 pedicel not swollen. 

 Archenomus bicolor new species. 



Female. Length .7 mm; expanse 1.5 mm ; greatest width of fore-wing 

 .25 mm. Funicle joints i and 2 small, little wider than long, each about 

 half length of pedicel; funicle joint 3 as long as i and 2 together; club 



// 



FIG. 10. Archenomus bicolor ; male and female an 

 tennae, fore wing and hind leg greatly 

 enlarged (original). 



3-jointed, joint i longest, 2^ times as long as 3rd funicle joint; joints 2 

 and 3 subequal, 3 acuminate at tip. General color dark brown ; head 

 dark yellow; scutellum light yellow, axillas brown; margin of meso- 

 scutum and its parapsides dark orange-yellow; tip of abdomen sometimes 

 yellowish; all legs pale, except slight dusky shades on middle of femora 

 and at base of tibiae; basal half of wings infuscated ; wing veins dark 

 brown, eyes reddish. 



Male. Resembles female, except in generic and sexual characters. 



Type. No. 3646, U. S. N. M. 



