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



truncate, slightly concave, sliining ; flagelium short, obscure 

 reddish beneath ; vertex, and cheeks closely punctured ; 

 mesothorax with small punctures, sparse and weak in 

 middle ; scutellum broad, not elevated, well punctured ; 

 middle of area of mesothorax dull, without lustre ; tegulse 

 rufous clouded with piceous. Wings very strongly reddened ; 

 b. n. meeting t.-m. ; first r. n. joining second s.m. at a 

 distance from its base less than half length of first t.-c, 

 second r. n. ending at a greater distance from end of cell ; 

 tarsi with pale reddish hair on inner side ; pulvilli very 

 large. Abdomen shining, finely punctured, with white 

 iiair-bands on apical margins of segments, largely inter- 

 rupted in middle ; last dorsal segment broadly rounded, with 

 fine pale hair. 



Hab. Kerrville, Texas, at flowers of Monarda citriodora, 

 May 31, 1906 [F. C. Pratt). U.S. National Museum. 



Readily known from H. truncata (Cress.) by the absence 

 of a raised line on clypeus and the very red wings. The 

 clypeus is more finely punctured than in H. sambuci, Titus, 

 and has no shining space above ; the wings also differ in 

 colour and venation. H. mescalerium, CklL, is less related 

 than sambuci. 



On April 12, 1907, Mr. Pratt took Megachile schismatura , 

 Ckll., a species new to Texas, at Kerrville. 



Prosopis luzonica, sp. n. 



5 . — Length about 6 mm. 



Black, with very scanty white hair, but the posterior 

 truncation of metathorax pale pruinose from minute hairs ; 

 head and thorax rather coarsely punctured ; broad elevated 

 region between antennae, and clypeus, longitudinally grooved, 

 the grooves punctured at intervals and microscopically longi- 

 tudinally fluted or striate between the punctures; eyes 

 converging below ; a spot (rather broader than long) at 

 apex of clypeus, and very narrow lateral face-marks (notched 

 or abruptly narrow^ed at level of top of clypeus, but con- 

 tinuing upward along eyes to level of middle of front), as 

 well as interrupted swollen band on prothorax, margin of 

 tubercles, and spot on tegulae chrome-yellow; flagelltim 

 obscurely dark reddish beneath ; area of metathorax large, 

 moderately rugose, but without distinct keels. Wings clear, 

 faintly dusky apically, stigma rufo-fuscous, nervures sepia, 

 recurrent nervures meeting transverso-cubitals ; second 

 s.m. much broader than high ; a stripe on anterior tibise, 

 small spot at base of middle tibiae, and base of hind tibiae 



