408 Messrs. T. D. A. Cockerell and W. Porter on Bees. 



vertex more or less roughened ; punctures of thorax by no 

 means so hirge or strong ; tegulje smaller, without any reddish 

 tint; costal and subcostal nervures separate; marginal cell 

 smaller and blunter ; first submarginal considerably smaller, 

 third more narrowed towards the marginal ; transverso-medial 

 nervure of hind wings very oblique (in the Entechnia it is 

 very little oblique) ; hind femora very short and not swollen ; 

 spurs dull white; hind tibia3 and tarsi with a rather abundant 

 scopa, hair on inner side of basal joint of hind tarsi pale 

 ferruginous ; claws much smaller ; abdomen whiter, without 

 bands. Eyes blue-grey. Mandibles blunt, simple. Clypeus, 

 labrum, and mandibles entirely dark. 



Blades of maxillae somewhat pointed ; maxillarj' palpi 

 5-jointed ; basal joint club-shaped, about 120 /a across at the 

 base and 50 /x at the apex, 220 /.t long ; second joint about 

 40 /A wide and 160 long; third 180 /x long; fourth almost 

 square in outline, 30 fj, ; fifth 20 /x. wide and 30 long. 

 Labial palpi with the first joint about 1000 //., second 500, 

 third 80, fourth 80. ParaglossjB 1700/i; tongue 1780 fi. 



(^ . — Length 10 millini. 



Antennas long, reaching to middle of first segment of abdo- 

 men, somewhat crenulated, entirely black ; flagellum without 

 keels ; clypeus and labrum white ; mandibles with a white 

 spot at base ; posterior femora not swollen ; abdomen sub- 

 f'asciate as in the male Entechnia grisella. The male of 

 X. olbata differs at once from this by having the flagellum 

 ferruginous beneath and the face- marks quite yellow instead 

 of creamy w-hite. 



Hah. Las Vegas, New Mexico, Aug. 8 {A. Garlick). 

 Others taken subsequently by W. Porter. All were found at 

 the flowers of Sphceralcea lobatu, Wooton. 



Ashmead says of Xenoglossodes that the last two joints of 

 the maxillary palpus united are scarcely longer than the 

 third; we find them not so long. 



Entechnia, Patton. 



A. Mesothorax with an angular band of black hair ; scutellum with black 



hair. 



(1) E. taurea (Say). Illinois to Geor^ria. 



(2) E. fidvifrons (Smith). Texas to South America. 



B. Pubescence of thorax dense, entirely jale ochreous. 



a. Abdomen with distinct bands. 

 (.3) E. dakotctisis, sp. n. Dakota. 



b. Abdomen uniformly covered with a velvety pile. 

 (4) E. ff rise/la, .«p. n. New Mexico. 



