ART. 20. SOME NEW AMERICAN TERMITES SNYDER. 5 



KALOTERMES MONTANUS. new species. 



Winged adult. — Head j^ellow-brown (i^ale castaneoiis between 

 eyes) , longer than broad, but short, broadest back of eyes ; rounded 

 posteriorly; with scattered but fairly long hairs. Eyes not quite 

 round, large, projecting, distance from lateral margin of head equal 

 to their diameter; ocellus large, elongate, placed obliquely to com- 

 pound eye, at a distance less than its small diameter. Post-clypeus 

 pale yellow, hind margin a straight line. Labrum broader than long, 

 broadly rounded anteriorly, with long hairs. 



Antennae yellow-brown, paler than head, longer than head, with 

 18 segments ; with long hairs ; first segment elongate, stout, cylindri- 

 cal ; second shorter, clavate, slightly longer than third, which is more 

 slender and has the chitin more deeply colored ; fourth shorter, wedge- 

 shaped; fifth slightly longer; last segment slender, very short and 

 subovate ; antennae stouter toward tip. 



Pronotum approximately same color as head, broader than head 

 (not including -the eyes), nearly twice as broad as long, broadest in 

 middle, emarginate at anterior margin, posterior margin almost 

 straight, lateral margins rounded, with long hairs. 



Wings pale, costal veins dark yellow-brown ; wing longer and 

 broader than in mm^ginipennis ; radial sector with 6 long branches 

 to the costa; branches between subcosta and median veins; median 

 about half way between radial sector and cubitus, doubly branched, 

 and does not extend to apex of wing; cubitus with 17 branches or 

 subbranches (pi. 4, fig. 14). 



Wing scale is longer than the pronotum. 



Dorsal surface of abdomen with same color as pronotum, ventral 

 surface paler, abdomen with long hairs. 

 Legs paler, not particularly short or stout. 

 Measurements. 



Length of entire winged adult : 18.0 mm. 

 Length of entire deiilated adult : 6.5-7 mm. 

 Length of head: 2.20 mm. 

 Length of pronotum : 1.10 mm. 

 Length of hind tibia : 1.30 mm. 

 Length of wing : 16.0 mm. 

 Width of head (at eyes) : 1.80 mm. 

 Diameter of eye (long diameter) : 0.307 mm. 

 Width of pronotum : 2.00 mm. 

 WMdth of wing (at widest point) : 4.5 mm. 

 Although differing from the description, this may be Walker's 

 mexicanus; Hagen states, however, that mexicanus is a synonym of 

 marginipennis Latreille. 

 Soldier unknown. 

 Type locality. — Federal District of Mexico. 



