Records of Bees. L#9 
punctured ; tegule rufo-fuscous. Wings dusky, stigma and 
nervures dark brown. Legs very dark reddish brown ; spurs 
ferruginous. Abdomen not appreciably constricted between 
first and second segments; first segment impunctate, the 
following with extremely fine punciures in the basal region ; 
apical segments with hoary pubescence. 
Meadow Valley, Mexico (C. H. 7. Townsend). U.S. Nat. 
Museum. 
In my table in Ann. & Mag. Nat. Hist., Nov. 1907, this 
runs to S. dichrous, Smith, from which it is readily known 
by the impunctate first abdominal segment and other cha- 
racters. On account of the thin hoary pubescence on apical 
part of abdomen it recalls S. pi/osulus, Smith, from Oaxaca, 
but that has the thorax closely punctured. 
Melissodes albocineta, sp. n. 
? .—Length about 10 mm. 
Compact, black ; antenne beyond the fourth joint ferru. 
ginous beneath; eyes pale grey ; small joints of tarsi reddish; 
tegulz piceous, posteriorly paler and re ldish. Wings faintly 
dusky, nervures and, stigma dark brown; hind margins of 
abdominal segments (first narrowly, second broadly) 
colourless; pubescence greyish white, pale on vertex, but 
disk of scutellum with fuscous hair. Hair on outer side of 
tibiz and tarsi suffused with reddish, on inner side of hind 
basitarsi bright ferruginous ; hind tibial scopa long, loose, and 
strongly plumose; hind margins of abdominal segments 2 to 4 
with broad felt-like entire white hair-bands ; black parts of 
first three segments exposed and shining, hardly punctured, 
but that of fourth covered with very short fuscous hair ; fifth 
segment covered with dark chocolate hair, paler at margin, 
creamy-white at extreme sides; pygidial plate narrow; meso- 
thorax and scutellum highly polished and sparsely punctured, 
the mesothorax with a shallow median longitudinal groove, 
Mexico (Baker collection, 2320). U.S. Nat. Museum. 
This may be referable to Xenoglossodes; I have not ven- 
tured to extract the mouth-parts of the unique type. It 
certainly closely resembles X. excurrens, Ckll., differing 
principally by the white hind margins of abdominal segments. 
in my table of Melissodes (1906) it runs next to JZ. martini, 
Ckll., which it does not resemble. 
Ptilothria heterochroa, sp. n 
2 (type).—Leneth about 10°5 mm.; anterior wing 7°7 mm. 
Black, with black and greyish-white hair ; hair at sides or 
