430 Mr. T. D. A. Cockerell — Descriptions and 



Meyachile laticeps. Smith, var. a. 



^ . — Los Banos, Philippine Is. {Baker, 1790). 



This exactl}'^ agrees with Smitli's account, except that it is 

 fully 11 mm, long, the hair on the cheeks is only faintly 

 tinged with yellow, and the first four abdominal segments 

 have entire fulvous hair-bands. Unless Smith's type was in 

 poor condition, my insect must represent a distinct variety, 

 but, I think, not a distinct species. 



MegacMle perihirta, Cockerell. 



cJ . — Los Angeles County, California (Co^-z^Z/e/^). U.S. 

 Nat. Museum. Denver, Colorado, Aug. 25 [Mrs, C. Bennett). 



Megachile sidalcecp, Cockerell. 



cJ . — Del Rio, Texas, May 1, 1907, at flowers of Monarda 

 citriodura {Bishopp). U.S. Nat. Museum. 



Megachile pereximia (Cockerell). 



M. vallorum, Ckll., is no doubt the female of pereximia. 

 The type o^ pereximia has the first r. n. entering second s.in. 

 as far from base as second from apex, and has the fringe 

 on inner side of anterior basitarsus mainly black. These 

 characters vary in Texan specimens; some from Cotulla and 

 Denton have the first r. n. exactly meeting first t.-c, and in 

 these the fringe on inner side of anterior basitarsus is light 

 red, only black at base. These also are smaller than the 

 type. However, one from CotuUo is as large as the type, 

 and a Denton male has the first r. n. entering second s.m., 

 though not so far from base as in type. 



The following records relate to material from Texas : — 



(1) Males (pereximia). — Cotnlla, May 11, at Monarda 

 jmnctata and Verbesina enceliuides (Crawford) ; Co- 

 tulla, May 5, at Coreopsis (Crawford) ; Denton, 

 May 29, at Gaillardiu pnlchella (Bishopp) ; Dallas, 

 at Amorjdiu frtUicosa, May 9 [Bis/io/j/j) ; Dallas, at 

 Gaillardiu pulchella, May 19 (Bishopp) ; Dallas, 

 July 1, hair of face cream-colour (Bishopp) ; Paris, 

 May 21 [Bishopp) ; San Antonio, at Coreopsis carda- 

 rninefolia. May 4 [Crairford) ; New Boston, at Tetra- 

 neuris linearifolia, Aug. 29 [liishojrp) ; Victoria, at 

 Heliant/ins, April 20 [Bishojip) ; Stringlown, Sept. 7 

 (Bishopp); Calvert, April 5 (./ones); Kerrville, at 



