12 



BULLETIN" 108, UNITED STATES NATIOlsTAL MUSEUM. 



in diameter than others. Pronotum about twice as broad as long, 

 front margin h irdly concave, anterior corners romided, sides sloping 

 a little behind and rounded into hind border; front wing scale very 

 much longer than the pronotum. Wings twice the length of the entire 

 body, moderately broad; not much over four times as long as broad; 

 the costal area near tip very broad, radial sector six to nine branches 

 above; the first branch often only one-fourth way out. Legs fairly 

 stout, the femora thick, mid and hind tibia with several spines below, 

 fore and mid tibiae with usually two spines on the outer side ; the head 

 is polished, practically without hair on front; the thorax and abdomen 

 with minute short, fine, erect hair; margin of pronotum with longer 

 hairs. 



Length of wing, 23 to 25 mm.; width of whig, 5.2 to 5.5 mm. 



Soldier. — Castaneous; head darker red, more black in front, 



Fig. 1.— Side views of the heads, 



SHOWING the eyes OF THE SEXUAL, 

 WINGED ADULTS, CONTRASTING THE 

 DISTANCE OF THE EYE FKOM THE MAR- 

 GIN OF THE HEAD AND THE RELATIVE 

 LENGTH OF THE EYES. GKEATLY 

 ENLARGED, a. TERMOPSIS LATICEPS; 

 6. TERMOPSIS ANGUSTICOLLIS. 



Fig. 2.— Distribution op Termopsis 

 angusticollis. 



mandibles black. Head a little broader behind than in front, about 

 one and one-fourth times longer than broad; eyes pale hyaline, 

 a little behind antennal pit; mandible about as long as width of 

 head* in front, nearly straight, left with large sharp tooth beyond the 

 outer third, a broad one near basal third, between the two; the edge 

 is finely serrate; right mandible with two teeth toward base fitting 

 each side of the broad subbasal one of the left mandible; antennae 

 not as long as head, of 25 joints or more. Pronotum much narrower 

 than head, more than twice as broad as long; sides only little 



