46 PROCEEDINGS OF THE NATIONAL. MUSEUM vol. 68 



7. Eye large, mandible elongate nigropunctatus Emerson 



Eye small, mandible not elongate bolivianus Snyder 



8. Winged adults large (14 mm. in length) meridianus Emerson= 



{morio Silvestri) 

 Winged adults small 9 



9. Post clypeus less than twice as broad as long clypeatus Snyder 



Post clypeus slightly over twice as broad as long 10 



Post clypeus nearly, or three times as broad as long 12 



10. Mandibles elongate, ocellus distant from eye distans Snyder 



Mandibles short, ocellus close to eye 11 



11. Winged adult 10.25 mm. in length distinctus Snyder 



Winged adult 9 mm. in length banksi Emerson 



12. Head 0.75 mm. in width proximus Snyder 



Head 0.60 linearis Snyder 



13. Fontanelle, large suJj^val plate 



Antenna with third segment elongate silvestrii Emerson 



Antenna with third segment not elongate howardi Snyder 



14. Length of winged adult 10 mm indistinctus Snyder 



Length of winged adult 7 mm brevipilis Emerson 



ANOPLOTERMES (ANOPLOTERMES) BOLIVIANUS, new species 



Winged, female adult. — Head castaneous-brown, broader than long 

 (posterior margin to base of post clypeus), with dense long hairs. 

 Fontanelle hyaline, prominent, subelliptical slit on vertex of head. 



Eye black, not quite round, small but projecting, close to lateral 

 margin of head. Ocellus hyaline, suboval, upper rim projecting, 

 separated from eye by a distance less than the small diameter of an 

 ocellus. 



Post clypeus yellow-brown, projecting, bilobed, slightly over twice 

 as broad as long, with dense long hairs. 



Mandibles yellow to castaneous, not very elongate. 



Antenna yellow-brown, 15 segments, with long hairs; third seg- 

 ment narrower and shorter than second or fourth segments; fourth 

 shorter than second segment; segments become longer and broader 

 toward Si]}QX ; last segment narrow, elongate, and subelliptical. 



Pronotum much lighter colored than head, yellow-brown, slightly 

 narrower than head, saddle-shaped, sides roundly slope to posterior 

 margin which is nearly straight, but pronotum as a whole is semi- 

 circular. 



Mesonotum and metanotum are deeply and angularly emarginate. 



Wings gray, costal area golden yellow-brown, tissue finely punc- 

 tate, margins ciliate. In fore wing median vein nearer to cubitus 

 than to subcosta, with branches or not to apex of wing; cubitus does 

 not quite reach apex with 10-12 branches or subbranches to lower 

 margin of wing. 



Legs yellowish with tinge of brown, slender, elongate, with long 

 hairs. 



