129 



making it an important factor in the development of the 

 sciences of its region. 



Nothylaeus yoruba n. sp. 



9 Black, opaque ; mandibles, labrum, clypcus 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 tcgulae 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 al)Out 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 $ collected at Oloke Meji, Ibadan, 

 ISTigeria, (hiring Angn.st or September 11)14 f.T. (". Bridwell). 



Ty]ie in the anthor's collection. 



^'orulia, the nation of agricuh iii-al negroes occnpying a 

 great pai't of southern Xigeria. 



14a. AxYT,A?:rs .\, sfbgex. of Xottiylakus. 



I'iie bee (h'scribed below, whih' agreeing with Xofh i/Jaciis in 

 the characters drawn from the genital armature and the form 

 of the concealed sternites and in the cephalic characters — 

 labrnm, mandibles and supraclypeal area, approaches MetijJacus 

 in the pecnliarities of the metanotnm and scntellum. For the 



