AST. 6. NEW SPECIES OF TERMITES SNYDEK. 31 



Meso- and metanota lighter colored tlian pronotum, slightly angu- 

 larly emarginate posteriorly. 



Legs yellow-brown. 



Wing brown-black, costal veins darker, tissue punctuate and with 

 hairs, margin ciliate, median vein close to cubitus, branched 4 times 

 before reaching apex, but reaches apex, cubitus with 7-10 branches 

 or sub-branches. 



Wing scale about the same length as pronotum, with long hairs. 



Tergites of abdomen darker colored than meso- and metanota, but 

 slightly lighter colored than pronotum; sternites lighter colored than 

 tergites — lighter at middle of segments; abdomen with numerous 

 short hairs. 



Measurements. — Length of entire winged adult, 15 mm.; length of 

 entire dealated adult, 10 mm.; length of head, 1.75 mm.; length of 

 pronotum, 0.74-0.80 mm.; length of hind tibia, 1.7 mm.; length of 

 anterior wing, 11.5 mm.; width of head (at eyes), 1.55 mm.; diameter 

 of eye (long diameter), 0.307 mm.; width of pronotum, 1.28-1.30 

 mm.; width of anterior wing, 3.78 mm. 



N. guayanae described by Holmgren in 1910 from South America 

 (upper Surinam) is a longer and lighter colored adult than the form 

 cohimbicus from Colombia, which I consider to be a good species, 

 although close to guayanae; the distance of the ocelli from the eyes 

 is different. It was described^^ from the nasutus caste and the winged 

 adult has remained unknown until found at Panama with nasuti 

 and workers. 



This species, columhicus Holmgren, does not construct a regular 

 spherical carton "niggerhead" nest in trees, but will cover over 

 infested posts with material of the same consistency of the usual 

 carton nest, forming an irregular shaped mass or nest. 



Described from several winged adults ready for the flight, collected 

 with nasuti and workers by J. Zetek and I. Molino, on April 28, 1921, 

 at Frijoles, Canal Zone, Panama (Z. 1404), in a rotten log at avocado 

 plantation. These specimens are deposited in the United States 

 National Museum. 



Subgenus Subulitermes Holmgren. 



As yet this subgenus of the genus Nasutitermes Banks, established 

 by Holmgren in 1912, contains but few known species, which, how- 

 ever, occur in South America and Asia; two species which occur in 

 Africa are doubtfully placed in Subulitermes by Holmgren. 



The soldiers of the American species have pear-shaped, light colored 

 heads but slightly constricted with the dorsal profile of the head 



25 1910(1909). Holmgren, N. Versuclieiner Monographiedesamerikanischen ^uJfrniM-Arteii. Mitteil. 

 Naturh. Mus. Hamburg, vol. 27, 2 Beiheft, pp. 2Di-2o6[ Nasutitermes] Eutcrmes guayanae descnhed-.p. 250, 

 new form columhicus described from "Columbiea" 



