30 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. <?8 



N. (N.) ininor Holmgren has a very distinctive wing venation 

 Avhich however is variable. 



Described from a series of winged adults collected with soldiers 

 and workers at Kosario, Bolivia, in November by W. M. Mann, in 

 wood of tree. The winged adult has been hitherto unknown. These 

 specimens are deposited in the collection of the United States Na- 

 tional Museum. 



This species was also collected at the following localities: Espia^ 

 Bolivia (soldiers and w^orkers) ; Rosario (Lake Rogogua), Bolivia, 

 November, 1921 (soldiers and workers) ; Rosario, Bolivia, November, 

 1921 (soldiers and workers in wood of trees). 



NASUTITERMES (NASUTITERMES) PILOSUS, new species 



Soldier. — Head piceous, smooth, shining, nasus lighter (reddish- 

 brown), pear-shaped, nearly straight in profile, elevated at base 

 nasus and concave posterior to elevation ; two rows of long hairs, one 

 at base nasus, other on vertex of head. Nasus conical, not elongate 

 or very thick. Mandibles with sharp points. 



Antenna brown, 13-14 segments, segments become longer and 

 broader toward apex, with long hairs; if 13 segments, third seg- 

 ment elongate, slender, subclavate, longer than second or fourth 

 segments; fourth shorter than second; fifth longer than fourth or 

 second; if 14 segments, third segment narrow, subclavate, shorter 

 than second or fourth segments; fourth and second segments sub- 

 equal ; fifth slightly shorter or subequal, but sixth longer than fourth 

 segment ; last segment slender, short, and subelliptical. 



Pronotum castaneous-brown, saddle-shaped; anterior margin 

 darker, not emarginate, with long hairs. 



Legs brown, slender, elongate, with long hairs. 



Abdomen with tergites dark castaneous brown, with a row of long 

 hairs at the base of each tergite and dense shorter hairs: cerci fairly 

 elongate and prominent. 



Measureinents. — 



Length of entire PoUlier, 3.80-4.00 mm. 



Length of head with nasu.s, 1. 55-1. 65 mm. 



Length of head without nasus (to anterior) 1.00-1.05 mm. 



Length of iiasus, 0.60 mm. 



Lengtli of pronotum, 0.20-0.25 mm. 



Length of hind tibia, 1.35 mm. 



Width of head, 0.95-1.05 mm. 



Width of pronotum, 0.60 mm. 



'Worl-er. — Head dark colored, piceous, with a hyaline median longi- 

 tudinal line connecting fontanelle and epicranial suture, with long 

 and dense shorter hairs; antenna with 14^15 segments; tergites of 

 abdomen with long and dense shorter hairs. 



