AET.20. SOME NEW AMERICAN TERMITES SNYDER. 3 



Closely related to Kaloterm.es marginipennis Latreille but darker 

 colored. 



A single specimen, possibly a variety, collected at Waikiki by Ash- 

 mead is lighter colored, longer, with longer, wider head, and has the 

 pronotiim relatively shorter in proportion to its width ; the wings are 

 also longer; membrane of wing rugose between median and subcosta. 

 More material is needed to determine whether this is merely a 

 variety or a distinct and new species. 



Soldier. — Head yellow-brown, anterior portion castareous-brown, 

 posterior portion pale; elongate, normally not twice as long as 

 broad, but forms occur in which the head is nearly twice as long as 

 broad ; lateral margins nearly parallel but slightly broader anteriorly; 

 posterior margin rounded; head with scattered but fairly long hairs. 

 Anterior portion (front) slightly sloping forward and depressed in 

 middle, with V-shaped dark area. 



Mandibles black, not as long as Avidth of head, stout at base, points 

 curved in at apex, marginal teeth variable. Labrum yellow-brown, 

 broader than long, constricted at tip, nearly truncate, with long 

 hairs at tip. 



Eye spot pale, small, separated from rim of antennal socket by a 

 distance equal to its diameter. 



Gula fairly broad in middle, at middle being about half the width 

 in front. 



Antennae pale yellow-brown, longer than mandibles, as long as 

 width of head, 13 segments, pubescent ; third segment elongate, slen- 

 der, clavate, with chitin deeply colored, longer than fourth and fifth 

 together ; last segment slender and subovate. 



Pronotum yellow-brown, not twice as broad as long, deeply emar- 

 ginate posteriorly (angles more acute than in marginipennis)., con- 

 vex posteriorly; widest at anterior portion, anterior margins high; 

 narrowed, but not much rounded toward posterior margin, concave in 

 middle, where narrowest. Anterior margin darker and slightly ser- 

 rate. Pronotum with scattered but fairly long hairs. 



Abdomen with dorsum slightly paler than pronotum, pubescent, 

 hairs fairly long. 



Legs with femora swollen, tibiae darker. 



Measurements. 



Length of entire soldier: 7-9.5 mm. 

 Length of head with mandibles : 3.5-4.7 mm. 

 Length of head without mandibles: 2.4-3.2 mm. 

 Length of left mandible : 1.1-1.40 mm. 

 Length of pronotum (at corners) : 1.20-1.50 mm. 

 Length of protonuni (.at middle) : 0.90-1.20 mm. 

 Length of hind tibia : 1.102-l.GO nun. 

 Width of head : 1.75-2.10 mm. 

 Width of pronotum : 1.75-2.10 mm 



