164 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75 



Type. — In the collection of Cornell University; paratype in the 

 Zoologisches Museum der Universitat, Berlin. 



MICROBEMBEX EQUALIS. new species 

 Figures 62, 63 



Type (female). — Black: labrum; mandibles, except tips; ciypeus, 

 except black basal band, emarginate at apical middle; scape below; 

 trace of anterior orbits opposite sides of ciypeus; posterior orbits; 

 narrow posterior border of pronotum ; tubercles ; small spot on side 

 of prothorax; short lateral lines above base of wings on scutum; 

 small lateral spots on scutellum; fascia on metanotum; curved 

 fascia on dorsum and posterior surface of propodeum; spot on ven- 

 tral border of mesopleura ; broad, continuous fascia on tergites 1-6, 

 the anterior borders being slightly irregular and acutely emarginate 

 at dorsal midline ; continuous apical fasciae on sternites 2-6, some- 

 what enlarged at lateral extremities and also at midventral line ; spot 

 on coxae variable in extent; distal part of femora varying in extent 

 on the different pairs; tibiae, except spot below on anterior and 

 middle pairs; and tarsi; light greenish yellow or pale ci^eaviy white. 

 The fasciae on the tergites, except their extreme anterior borders, 

 are almost white, while the shade of yellow on the tibiae and tarsi 

 is deeper than elsewhere on the body. 



The frons is very wide and the inner eye-margins are parallel. 

 The flagella are black. The ciypeus is prominent, in this respect 

 agreeing with monodonta. The pubescene is dense, white, and of 

 normal length, being longest on head, sides of thorax and lateral 

 angles of propodeum. When viewed at the proper angle the 

 pubescence appears silvery, especially on frons and ciypeus. The 

 anterior metatarsus bears seven spines, of which the four on the 

 distal portion are large and black in color, while the three on the 

 proximal part are much smaller in size and are light in color. The 

 second abscissa of the radius and the second abscissa of the cubitus 

 are equal in length, whereas in other species the second abscissa of 

 the radius is appreciably longer than the second abscissa of the 

 cubitus. The sixth tergite ends in two distinct points (fig. 63). 



Length 15 mm. Described from a single female bearing the 

 label, "Tingo, Peru, Aug. 17 (Cockerell)." 



Type (male).— Cat. No. 40854, U.S.N.M. 



Genus BICYRTES Lepeletier 



Figures 15, 16, 40 



Bemhex Olivieb (part), Encycl. Metli., vol. 4, 1789, p. 288. 

 Moncdula Dahlbom (part), Hym. Eur., vol. 1, 1845, p. 492. 



