129 



making it an important factor in the development of the 

 sciences of its region. 



Nothylaeus yoruba n. sp. 



5 Black, opaque; mandibles, labrum, clypeus except middle line, an- 

 tennae (flagellum darker above), pronotum (collar suffused with yellow- 

 ish), legs including coxae, posterior interrupted band on scutellum, and 

 basolateral suffusion on first tergite reddish ; narrow longitudinal stripe on 

 clypeus, acuminate mark on sides of face reaching 2/3 of the distance to 

 the summit of the eyes, transverse mark on the supraclypeal area and 

 basal spot on tegulae yellow ; wings hyaline, venation blackish. 



Rather generally covered with sparse, fine cinerous pubescence, notice- 

 able on the antennal foveae, cheeks, collar, tubercles, mesopleura, 

 sides of propodeum and second and following tergites ; tergites i and 2 

 with apical interrupted hair bands. 



Clypeus with the surface uneven with very shallow indefinite punc- 

 tures separated from each other about their own diameter, sides of face 

 and supraclypeal area much the same, a little more definitely punctured ; 

 vertex closely and confluently punctured. Mesonotum very closely, rather 

 finely and confluently punctured, appearing granular or shagreened 

 with a low-power lens. Scutellum with the surface somewhat shining, 

 with a little coarser scattered punctures ; metnotum knobbed, opaque, with 

 irregularly disposed punctures. Propodeum with a few coarse reticulations 

 at the base of the basal area not extending to the sides or summit but a 

 few rugae there. Mesopleura like the mesonotum, sides of the propo- 

 deum with the finer sculpture concealed by the pubescence ; posterior 

 face of the propodeum hexagonal, radiately irregularly striolate, angulate. 



Abdomen subopaque, tergites microscopically transversely lineolate ; 

 the apices of tergites 1-3 but very little contracted. 



Described from a single 2 collected at Oloke Meji, Ibadan, 

 Nigeria, during Aiigiist or September 1914 (J. C. Bridwell). 



Type in the author's collection. 



Yoruba, the nation of agricultural negroes occupying a 

 great part of southern ISTigeria. • 



14a. Anylaeus n. subgex. of Nothylaeus. 



The bee described below, while agreeing with Nothylaeus in 

 the characters drawn from the genital armature and the form 

 of the concealed sternites and in the cephalic characters — 

 labrum, mandibles and supraclypeal area, approaches MetyJaeus 

 in the peculiarities o^ the metanotum and scutellum. For the 



