100 Mr. T, D. A. (JockevcW—Desci-iptiona and 



silvery-white fascia below costa ; a silvery-white fascia from 

 base along mediau iicrvure to middle of cell, then curved 

 upwards to apex towards which it becomes maculate ; a series 

 of silvery-white marks in interspaces of terminal area, reduced 

 to small spots towards apex and becoming elongate streaks 

 between veins 5 and 1, the streaks above veins 4 and 3 some- 

 times confluent with the white fascia. Hind wing fulvous 

 yellow. 



Hab. Natal, Howick {Cregoe), 2 cJ type; Basutoland^ 

 Pithaneng Valley {Crawshay), 1 ^ . Ea'j). 24 mm. 



Allied to B. ilex, WUgrn. 



Dalaca hololeuca, sp. n. 



TTead, thorax, and abdomen white slightly mixed with 

 brown; antennae fulvous; sides of frons and legs brown. 

 Fore wing white with a very faint ochreous-brown tinge, the 

 veins whiter, the costal edge browni. Hind wing white with 

 a very faint ochreous-brown tinge. Underside of both 

 wings suffused with pale brown. 



Ab. 1. Fore and hind wings more strongly tinged with 

 brown. 



J Jab. Transvaal [Pead, Chol/nley), 2 ? ; Natal, Estcourt 

 [Tlutchinson), 2 (J type; Orange R. Colony, Bethlehem 

 [Arnold), 1 S- Exp., ^ 34, ? 34-iO mm. 



XVI. — Descriptions and Records of Bees. — XXXT. 

 By T. D. A. COCKERELL, University of Colorado. 



Prosopis xanthasjnSj sp. n. 



? . — Length about 7 mm. 



Head and thorax black, abdomen black with a faint blue 

 tinge ; head entirely black, face finely stiiatulate, front and 

 vertex punctured ; flagellum dull ferruginous beneath ; meso- 

 thorax finely but distinctly punctured ; tubercles broadly, 

 scutelliim (except anterior margin), post.scutellum, and some- 

 times axillar triangle all bright ihrorae-yellow, no other 

 yellow about the insect; legs black; area of raetathorax 

 roughened basally. W^ings clear, the recurrent nervures 

 meeting the transverso-cubitals, or nearly. Abdomen dull at 

 base, more shining beyond. Runs in table of Australian 

 l^rosopis fo 43, and runs out because of the lack of yellow 

 on pleura ; if placed among the metallic species, runs to 14, 

 and runs out because the face is without light markings. 



