32 BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



KALOTERMES SIMPLICICORNIS, new species. 



Soldier. — Head yellowish, darker in front to almost brown; man- 

 dibles black, antennae and pronotum pale yellowish; legs still paler; 

 abdomen gray, mottled wdtli white. Head fully one and one-half 

 times as long as broad, about as broad in front as behind; sides not 

 rounded, parallel, ocelli faint, antennae not as long as width of head, 

 first joint rather short, second two-thirds as long as first; thu-d scarcely 

 longer than second or fourth, and hardly more chitinizod, 14 joints in 

 antennae; mandibles heavy anc^ short, not tw^o-thirds as long as width 

 of head, right one with two large subequal, sub-basal teeth, left one 

 with four teeth, two beyond middle are rather large, two minute ones 

 nearer base; labrum rounded at tip; gula in middle about one-third 

 of widest anterior part; pronotum not quite twice as broad as long, 

 but little narrowed behind, anterior margin slightly, angularly emargi- 

 nate, posterior corners rounded. Legs short, all femora enlarged, but 

 hardly as much so as in some other species. Body and legs with short 

 fine white hairs. 



Length, 8 to 9 mm. (Fig. 19, 2.) 



From Laguna on the Neuces River, Texas, May 4 (Snyder). 

 Winged form unknown. 



Type, sold.ier. —Cnt. No. 21S58, U.S.N.M. 



Genus NEOTERMES Holmgren. 



Winged. — Similar to Kalotermes, but the wing has the median vein 

 as strongly chitinized as the radius and radial sector and runs close 

 to the radial sector. 



Soldier. — Also similar to Kaloterm.es, but the femora are much 

 more slender, not at all enlarged; the third antennal joint is small 

 like the second or fourth; the mandibles toothed, unlike, but the 

 teeth rather smaller than in Kalotermes; three spines at tip of each 

 tibia; gula much narrowed in middle. 



We have but one species. 



NEOTERMES CASTANEUS Burmeister. 



Winged. — Pale castaneous; antennae, legs, and venter pale; wings 

 pale, costal veins castaneous. Head short, not broader above than 

 below; eyes round, large, less than diameter from the lower margin 

 of head, and scarcely two diameters from the hind margin; ocelli 

 obliquel}^ inward from eyes; labrum nearly truncate on tip; antennae 

 much longer than width of head, 16-jointed, third joint not modified; 

 pronotmn much broader than head, about two and one-half times as 

 broad as long, sides evenly rounded, anterior margin slightly concave, 

 and posterior margin slightly convex; wing scale but little longer 

 than the pronotum. Wings but little longer than the entire body, 

 radial sector usually with four or five long branches to the costa. 



