Mr. F. Smith on the Genus Centris. 369 



beneath, except the two basal joints, rufo-testaceous ; the cheeks 

 with white pubescence. Thorax : the pubescence at the sides 

 and beneath very pale yellow ; the anterior legs have a pale 

 fringe on the femora and tibia3 behind, and the tarsi have a 

 fulvous pubescence ; the pubescence on the other legs is black ; 

 the wings subhyaline, their tegulai white. Abdomen ; the 

 apical segment with fusco-ferruginous pubescence. 

 Hah. Honduras. 



*70. Centris nigro-ccendea. 



Female. Length 7 lines. Obscure blue-black ; the entire 

 pubescence black ; the claw-joint of the tarsi fusco-ferruginous ; 

 the mandibles reddish yellow at their apex, with the tips of 

 the teeth black ; the wings fusco-hyaline, darkest at their 

 base. 



Male. Resembles the female, but has the labrum and clypeus 

 white. 



Hah. Mexico. 



This species closely resembles the Hemesia mgerrima of 

 Spinola from Chili, from which it differs in having the apex 

 of the mandibles pale ; its wings are darker, and its abdomen 

 is more obscm-ely blue. The male of the Chilian species has 

 tiie labiiim and clypeus white : the clypeus is semicircular ; 

 in C. nigro-co'rulea it is semiovate. 



71. Centris laticincta. 



Hemesia laticincta, Spin. Ann. Soc. Ent. Fr. x. p. 148,2(1841). 

 Hah. Cayenne. 



72. Centris py ropy ga. 



Hetnesia pyropyga, Spin. Ann. Soc. Ent. Fr. x. p. 148 (1841). 

 Hah. Cayenne. 



73. Centris cineraria. 



Centris cineraria, Smith, Cat. Hjnn. Ins. Apida, ii. p. 'SIS, ? . 

 Hah. Chili. 



74. Centris ckiliensis. 

 Ilemesifi chiliensis, Spin. Faun. Chile, vi. p. 1G7, $ . 

 Hah. Chili. 



75. Centris nigerrima. 

 Hemesia nir/errima, Spin. Faun. Chile, vi. p. 107,9. 



Hah. Clilli. 



