ART. 14 TERMITES FROM AMAZON BASIN SNYDER ()3 



Labrum yellow-brown, elongate, longer than broad, two lateral 

 points hyaline, elongate, slender, labrum convex in center, with long 

 hairs. 



Gula broad in middle, more than half width at front. 



Mandibles black, elongate, slender, slightly bowed and incurved 

 at apex, longer than width of head. 



Antenna yellow-brown, 14 segments, pubescent; third segment 

 subclavate, shorter than second or fourth, from fifth to ninth longer, 

 toward apex (10-14) segments shorter and narrower, last segment 

 pointed at tip. 



Pronotum white with tinge of yellow, saddle-shaped, with a few 

 long and short hairs, emarginate anteriorly (hardly emarginate in 

 trispinosus Hagen) . 



Legs white with tinge of yellow, pubescent. 



Abdomen dirty-gray with tinge of yellow, with dense short hairs, 

 longer hairs toward end and on sternites. 



Measurements. — k 



Length of entire soldier (to tip of mandible^?), probably 6.0 (?) mm. 



(5.25 mm. with mandibles closed.) 

 Length of entire soldier (to tip of central point), 5.2 mm. 

 Length of head with mandibles, 3.1 mm. 

 Length of head (to tip of central point), 2.05 mm. 

 Length of head without mandibles (to tip of labrum), 2.20 mm. 

 Length of head (to anterior) : 1.60 mm. 

 Length of central spine, 0.40 mm. 

 Length of left mandible, 1.70 mm. 

 Length of pronotum, 0.25 mm. 

 Length of hind tibia, 0.95 mm. 

 "Width of head (at posterior), 1.50 mm. 

 Width of pronotum, O.SO mm. 



Close to trisjnnosus (compared with type), head wider but shorter 

 than in trispinosus., hind tibiae shorter; smaller than hrevicornutus 

 Holmgren (= hrevicornis Silvestri), the anterior points more ro- 

 bust, central point forms more of an angle to the head ; head wider 

 than in nigrostoinus Holmgren; head wider and mandibles longer 

 than in gracilis Holmgren, where labrum is concave in center. 



Type locality. — Ixiamas, Bolivia. 



Described from two soldiers collected with workers at the type 

 locality in December, 1921, by W. M. Mann ; soldiers and workers of 

 Armitermes {Curvitermes) odontognxithus Silvestri were collected 

 with these soldiers. 



Type, soldier.— Cat. No. 27678, U.S.N.M. 



The described species of Spinitermes collected by Mann on the 

 Mulford expedition is Mirotermes {Spinitermes) trispinosus Hagen 

 found at Cavinas, Bolivia, February, 1922 (soldier with Gorni- 



