366 Mr. F. Smith on the Genus Centris. 



59. Centris trigonoides. 

 Centris trigonoides, St.-Farg. Hym. ii. p. 167, d" . 

 Hah. Brazil. 



60. Centris fuscata. 

 Centris fuscata, St.-Farg. Ilym. ii. p. 167, c?. 

 Hah. South America, 



61. Centris vittata. 

 Centris vittata, St.-Farg. Hym. ii. p. 168, S ^^ 

 Hah. Brazil. 



62. Centris himaculata. 

 Centris himaculata, St.-Farg. Hym. ii. p. 168, $ . 

 Hah. St. Paulo. 



63. Centris imnctata. 

 Centris punctata, St.-Farg. Hym. ii. p. 169,$. 

 Hah. South Brazil. 



64. Centris dentipes. 



Male. Length 5 lines. Head and thorax black, the abdo- 

 men ferruginous ; the labrum, mandibles, and clypeus pale 

 yellow, the latter black at the extreme base ; tips of the man-, 

 dibles nifo-piceous ; the flagellum of the antennai testaceous' 

 beneath, except the two apical joints, which are black ; a tuft^ 

 of pale pubescence above the clypeus, that on tlie vertex fus-: 

 cous, and that on the cheeks white. Thorax: above the 

 pubescence is fulvous, palest on the metathorax ; beneath it is 

 pale, inclining to white ; legs ferruginous ; the anterior and 

 intermediate pairs fringed with whitish pubescence ; on the 

 posterior legs it is fuscous, except that on the femora and 

 tibiae above, which is pale fulvous ; the posterior femora are 

 incrassate, the coxae with an acute spine at their apex ; the 

 wings hyaline and faintly clouded towards their apex. Abdo- 

 men with pale fulvous pubescence at its apex ; the basal 

 segment of the abdomen sometimes fusco-ferruginous. 



Hah. Ega ; Santarem ; Tapajos ; Para (Brazil) j W. Indies, 

 Mexico. 



Specimens from Ega have the legs nearly black and the 

 apical margins of the segments more or less fuscous. This 

 species may possibly be that described by St.-Fargeau as 

 Centris trigonoides ; but he makes no mention of the spine., 

 on the C0X8B. The species is allied to C. lanipes. ,p. 



