NO. 2264. BEES IN THE NATIONAL MUSEUM. 3—COCKERELL. 185 



and markings on under side of thorax; sciitelliim W-like, a very 

 little light hair from beneath notch ; wings very dark ; outer side of 

 anterior and middle tibiae, basal half of hind tibiae, and first two 

 joints of tarsi, covered with bright blue hair; first abdominal segment 

 covered with gray hair, except narrow hind margin ; segments 2 to 5 

 with broad bands narrowly interrupted on 2, broadly on the others. 



Soekaboemi, Java, March 25, 1909 (Bryant and Palmer). 



Type.— Cat. No. 20718, U.S.N.M. 



A remarkable species on account of the obscure abdominal mark- 

 ings. In the character of the markings it resembles C. abdominalis 

 Friese, also from Java. 



CROCISA CALCEATA Vachal. 



Male. — Sierra Leone. A si)ecimen from Vachal, labeled " Orocisa, 

 sp.", evidently prior to the description of calceata. 



Genus OEDISCELIS Philippi. 



Philippi based this genus (186G) on two species, 0. minor Philippi 

 and 0. vermdis Philippi ; the latter i^ herewith designated as the 

 type. In later years species have been described by Friese, Ducke, 

 Schrottky, and Brethes. Mr. J. C. Crawford has made the surpris- 

 ing discovery that Ashmead's genus IlyJaeosoma (1898) is apparently 

 identical with Oediscelis. Ilylaeosoma was based on H. longiceps 

 Ashniead, from St. Vincent, West Indies; and in 1906 a second 

 species, U. asTimeadi Crawford, was described from Costa Rica. The 

 type of Oediscelis is, unfortunately, not available, but the United 

 States National Museum contains specimens of 0. alhida Friese, 

 O. styliventris Friese, and 0. inermis Friese. These species of 

 Oediscelis are very like Prosopis, but more hairy. The cheeks and 

 under side of abdomen of 0. styliventris have long white hair, but 

 the species of Hylaeosoma are very little hairy. The species of Oedis- 

 celis and Ilylaeosoma ashmeadi female have white hair on under 

 side of abdomen. The female II. longiceps is broken, so this char- 

 acter can not be made out, but the male lacks the white hair, wherein 

 it does not difl'er m.aterially from male 0. alhida^ etc. 



Comparing the males of //. longiceps and 0. alhida^ they are 

 similar in appearance, with the same long (oval) head and very long 

 (high) middle lobe of clypeus, but longiceps has no light face marks. 

 They agree in the strong median groove of mesothorax, and both 

 have a large stignui. The venation presents important differences; 

 O. alhida has the second submarginal cell large and quadrate, with 

 first recurrent nervure meeting first transverse cubital; //. longiceps 

 has (he second submargmal cell very small, with first recurrent 

 nervure falling short of it by a distance nearly equal to width of 

 second submarginal cell. In the Ilylaeosoina the basal nervure falls 



