Records of Bees. 303 



clypeus polished, irregularly punctured, and Avitli a shallow 

 quadrate subapical depression ; antennce dark, the flagellum 

 obscurely reddish beneath, last joint flattened ; mesothorax 

 polished, with scattered minute punctures, and some larger 

 ones, the pubescence short and scanty, mainly black, but 

 whitish in front ; prothorax, tubercles, and pleura with dull 

 white hair ; scutellum with black hair ; tegulse black. 

 Wings dusky, subviolaceous, darker apically and in region 

 of marginal cell ; stigma large and reddish, nervures fuscous. 

 Legs black, the small joints of tarsi ferruginous : hind tibial 

 scopa long and black behind, white in front ; hind tarsi 

 with hair black behind, white in front, and bright ferrugi- 

 nous on inner side ; first two abdominal segments without 

 hair-bands or stripes, first segment at sides tbinly clothed 

 with dull white hair ; third and- fourth segments with thin 

 white bands ; apex with black hair, but at sides in subapical 

 region is a long fringe of silvery white hair projecting from 

 beneath, 



St. Vincent, West Indies {H. H. Smith, 208), U.S. Nat. 

 Museum. Ashmead, reporting on H. H. Smithes St. Vincent 

 collections, records only E. rufitarsis and E. puhescens. 



This is not particularly close to either, but is related to 

 the Brazilian E. nigripes, Friese, which has the abdomen 

 diflferently marked and the pleura dark-haired. 



Melissodes martinicensis, sp. n. 



^ . — Length about 9*5 mm., antennse about 7*4 mm. 



Very close to M. rufodentata, Sm., St. Vincent, but some- 

 what larger, with the subapical hair-bands on abdominal 

 segments .2 to 4 clear white, and the hair of thorax above 

 paler, not so red. The clypeus and base of mandibles are 

 yellow, the labrum nearly white; flagellum ferruginous 

 beneath to base ; knees, tibiae, and tarsi clear ferruginous. 



Martinique, West Indies, July 15 {A. Busck). U.S. 

 Nat. Museum. 



This could be regarded as an insular race of M. rufodentata. 



Ptilothrix tricolor (Friese). 



Carcarana, Argentina (^Bruner, 57). 



The original description by Friese is very inadequate, but 

 Brethes gives an excellent one. Ptilothrix has in general 

 the structure of Diadasia ; but on comparison with the type 

 of that genus (D. enavata) it differs markedly in the vena- 

 tion, the second s.m. receiving the first r. n. near middle, and 



