Records of Bees. 303 
clypeus polished, irregularly punctured, and with a shallow 
quadrate subapical depression ; antennee 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; tegule 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 thinly clothed 
with dull white hair; third and fourth segments with thin 
white bands ; apex with black hair, but at sides in subapical 
region is adong 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. Smith’s St. Vincent 
collections, records only Z. rufitarsis and E. pubescens. 
This is not particularly close to either, but is related to 
the Brazilian EH. nigripes, Friese, which has the abdomen 
differently marked and the pleura dark-haired. 
Melissodes martinicensis, sp. n. 
3 .—Length about 9°5 mm., antennz 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 sored. The clypeus and base of. mandibles are 
yellow, the labrum nearly white; flagellum ferruginous 
beneath to base ; knees, tibie, and tarsi clear ferruginous. 
Martinique, West Indies, July 15 (d. 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. Péilothriz 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 
