Monographie der Bienengattung Centris (s. lat.). Jl-J 



II 6. Centris tarsata Sm. 

 1874. Centris tarsata Smith, d", Ann. and Mag. Nat. Hist. (4) XIII, pag. Syi, n. 81. 



»d". Head and thorax black, legs and abdomen ferruginous. Head: clypeus, 

 labrum and mandibles yellowish white, the tips of the latter ferruginous; the pubes- 

 cence on the cheeks white, on the face and vertex it is yellowish, the latter has a mix- 

 ture of fuscous; the flagellum of the antennae, except the 2 apical and 2 basal joints, 

 rufo-testaceous. Thorax clothed above with yellow pubescence, on the sides, beneath and 

 on the legs it is paler; the posterior tarsi fringed with black pubescence. Wings 

 subhyaline, the nervures dark fuscous. Abdomen: basal segment with yellow pubes- 

 cence, the fringe on the apical segments whitish. Long. 4^/2 lines (= 9^/2 mm.). 



»Brasil (Santarem).« 



Ich stelle diese Form als var. zu lanipes F. mit schwarz behaartem Metatarsus. 

 Im Mus. Berlin war diese Form als »frenata N.« bezeichnet (Surinam). Ducke-Para 

 fing die $ auf einer dürren sandigen Stelle über der Erde fliegend, wo sie wahrschein- 

 lich nisteten; er hält sie für eine gute Art. Bei Macapa an Cassia alata fliegend. 



117. Centris totonaca Cress. 

 1879. Centris Totonaca Cresson, 9, Trans. Amer. Entom. Soc, VII, pag. 2i3. 



9. Small, black; head and thorax thickly clothed with a whitish pubescence, that 

 on Vertex black, and that on thorax above ochraceous; clypeus prominent, depressed 

 medially, two confluent spots on anterior margin, labrum and mandibles except tips 

 yellow; flagellum duU testaceous beneath; tegulae fulvous; wings hyaline; legs brown, 

 the two posterior pair more or less varied with fulvous, posterior femora slender, their 

 tibiae with long yellow pubescence, that on their tarsi black; abdomen fulvous, with 

 yellowish pubescence at tip, basal segment blackish, thinly clothed with pale pubescence. 

 Long. 0-40 inch. (= 11 mm.). 



Hab. Mexico (Sumichrast), i §. This is allied 10 fiilviventris Cress. (= lanipes- 



tarsata ?). 



118. Centris picea Lep. 



1841. Centris picea Lepeletier, 9, Hist. nat. Insect. Hymen., II, pag. 166, n. 3i! 



»9. Antennae nigrae, antice albidae; caput piceum, rufo-villosum; labro 

 fasciaque clypei magna et oculorum orbita luteis; mandibulis luteis, apice fuscis; thorax 

 niger, rufo-villosus; abdomen testaceum, segmentis 5.— -6. rufo-villosis; pedes picei, 

 rufo-villosi; alae hyalinae, aeneo vix nitentes. Long.? 



»Patria?« 



Nach der Type im Mus. Paris eine lanipes F.; den »caput piceum« kann ich 

 nicht einmal bestätigen, er ist schwarz! 



119. Centris fulviventris Cress. 

 1865. Centris fulviventris Cresson, 9, Proc. Entom. Soc. Philadelphia, IV, pag. igS. 



»Black; head, thorax, legs, and base and apex of abdomen, densely clothed with 

 fulvo-ochraceous pubescence; legs brown; most of clypeus, labrum, mandibles, flagellum 

 beneath, and the abdomen, fulvous; wings subhyaline. 



»9. Black; head and thorax densely clothed with fulvo-ochraceous pubescence, 

 paler on the cheeks and pleura; a large spot on each side of the clypeus, nearly con- 



Annalen des k. k. naturhistorischen Hofmuseums, Bd. XV, Heft 3 u. 4, igoo. 2J 



