22 PROCEEDINGS OP THE NATIONAL MUSEUM vol. (jh 



Fewer hairs on head and with more taper toward anterior margin 

 than in percutiens Emerson. 



This termite is named in honor of the family of Edgar Laing 

 Benjamin. 



Type locality. — Cachuela Esperanza (Beni River), Bolivia. 



Described from a single soldier collected at the type locality by 

 Dr. W. M. Mann in March. 



Type, soldier.— C^t. No. 27649, U.S.N.M. 



ARMITERMES (ARMITERMES) HOLMGRENI, new species 



Queen (first form). — Head dark castaneous-brown, longer than 

 broad, round, tapers anteriorly, as alhidus, four long hairs at each 

 side of head behind eyes {A. alhidus Hagen has a hairy head). 

 Fontanelle distinct, linear, one line behind eyes. Eyes black, not quite 

 round, large; ocelli elongate, set obliquely to eyes, from which they 

 are separated by a distance equal to their small diameter. Labrum 

 yellow-brown, tongue-shaped, broader than long, broadest at middle, 

 apex white, with long hairs. Post-clypeus more than twice as broad 

 as long. 



Antenna yellow-brown, broken, pubescent; second segment longer 

 than third or fourth ; third subclavate, longer than fourth ; segments 

 become longer and broader toward apex. 



Pronotum castaneous-brown, sides slope toward posterior margin, 

 anterior corners high, emarginate posteriorly and slightly emarginate 

 anteriorly, with long hairs. 



Legs yellow-brown, elongate, slender, pubescent. 



Abdomen with tergites yellow-brown, pubescent. 



Measurements. — 



Length of entire queen, 24.0 mm. 



Length of head (to tip labrum), 1.40 mm. 



Length of pronotum, 0.70 mm. 



Length of hind tibia, 1.20 mm. 



Diameter of eye (long diameter), 0.30 mm. 



Width of head, 1.30 mm. 



Width of pronotum, 1.00 mm. 



Width of queen (abdomen), 7.70 mm. 



Soldier. — Head yellow-brown, nasus light castaneous-brown, head 

 broad, in profile not slightly concave (as in the case in A. {A.) 

 alhidus Hagen), head forms nearly a straight line with nasus. 

 posterior of head somewhat oblique, head with few long hairs on 

 posterior. Nasus stouter at base than in aJhiduf^. 



Labrum yellow-brown, conical, with long hairs. 



Mandibles reddish-brown, slender, strongly bowed, with sharp 

 incurved points; marginal teeth as in alhidus. 



