MEGACHILID BEES FROM BOLIVIA COLLECTED BY 

 THE MULFORD BIOLOGICAL EXPEDITION, 1921-22 



By T. D. A. COCKERELL 

 Of the University of Colorado, Boulder 



At the request of Mr. S. A. Rohwer I hare prepared the following 

 report on the bees of the family Mcgachilidae, obtained by the Mul- 

 ord Biological Expedition in Bolivia, 1821-22. As might be expected, 

 the collection is rich m novelties; but so far as it consists of known 

 spec.es they are of the great Amazonian Basin, and in part of Ecua- 

 dor, borne of the species reach the coast at Guayaquil, but there is 

 no resemblance to the fauna of the dry Pacific slope of Peru. 



Genus ANTHIDIUM Fabricias 



ANTHIDIUM VARIEOATIPES, i,ew sp«rfe» 



Female.~-Le-aeth about 10.5 mm., anterior wing 8 mm Robust 

 black, with light yellow markings, as follows: Mandibles except the 

 e!-ct'I 'h\''u' ^^'■y'>™^'ll«»'''f margin of clypeus semicircuiarly 

 excavated by black above, short lateral marks not reaching level of 

 antennae, four separate stripes along upper margin of head (that is 

 a narrow band three times interrupted), oblong spot at each sid of 

 anterior margin of mesothorax, narrow lateral marginal stripes on 

 nesothorax, large spots on axillae, interrupted band on hind margin 

 of scutelum, short hues on bases of tibiae, and on middle and hind 

 pa r anotner line farther dawn, narrow bands on abdominal segments 

 1 to .5, excavated at sides and middle, on first segment inteirunted 

 at tnese points and on second narrowly interrupted in midd'e sK-th 

 segment with two large transverse patches; anterior femora and'tibiae 

 bngh ferruginous m front; middle femora red with two black stripes 

 and their tibiae with a red stripe in front; hind tibiae rel w tha 

 la ge median b ack saddlelike area; venter of abdomen largely red 

 fih segment black with a red margin, sixth with a median longiu: 

 dinal red stripe; hair of face, cheeks, sides of thora:., metatho ax 

 ventral scopa, and legs white; Iiair of vertex dark fuscous thX' 

 above with gray hair, black or almost on posterior disk of mesotho ax 



?l!^l'^-^"ij:'!?!Mi^i^f^i!!i!^5£jJack^^ ^ery densely 



