530 I\lr. T. D. A. Cockerell — Descriptions and 



Fore wing with the basal area and an obliqne patch from 

 middle of costa to termen suffused with brown ; a curved 

 bhick line just before middle ; the postmedial line obliquely 

 curved from costa to vein 2, where it is retracted to lower 

 angle of cell and very strongly angled outwards on vein 1 ; 

 the termen silvery from vein 4 to below 2, where it runs 

 inwards for some way ; a wedge-shaped subterminal brown 

 band from costa to the silvery mark; cilia brown. Ilind 

 wing with curved medial black line, with spots before it 

 below cell and on veiu 1 ; the apical area M"ith a subterminal 

 brown line and apical patch ; a medial black patch on 

 terminal area traversed by an obliquely sinuous orange line 

 w^ith ill-defined silvery ocelli beyond it. 



Hab. LouisiADEs, St. Aignan {Meek). Exp. 14 mm. 

 Type in Coll. Rothschild. 



[To be continued.] 



LXIII. — Descriptions and Records of Bees. — LII. 

 By T. D. A. Cockerell^ University of Colorado. 



Megachile fortis, Cresson, var. vestali, var. nov. 



(T . — Runs exactly to M. furtis in Friese's table ('Das 

 Tierreich^), and agrees with Cresson's description except as 

 follows : — Pubescence, except on under part of cheeks, 

 fulvous, becoming a very rich fox-red dorsally ; hair of 

 thorax above not concealing the densely granular-punctate 

 surface ; tegul8e piceous, with a tuft of red hair in front ; 

 a large patch of deep red liair above each spine on anterior 

 coxne ; anterior femora broadly blackened in front and 

 behind, but honey-coloured above and below, the entire 

 apical part above black ; keel of sixth abdominal segment 

 very broadly truncate at apex; middle of apex (beneath the 

 keel) merely obtusely rounded, not forming a subacute tooth. 



Hab. Halsey, Nebraska, on the sand-hills, Aug. 27, 1911 

 {A, G. Vestal). 



This is possibly a distinct species, but more probably a 

 variety of M. fortis. It is a very handsome insect. M.fortis 

 was described from Texas, but a very large collection of 

 Texas Meyachile now before me does not contain the species. 



I formerly had quite a wrong idea of M. fortis, Mr. Fox 

 having determined for me as fortis a red-haired variety of 



