8 
PSYCHE 
[February 
rugose-wrinkled, very ill-defined ; hair of hind tibiae plumose, at least in part ; 
stigma ferruginous, quite large ; abdomen with apparently a very faintly pur- 
plish tint, and with only piliferous punctures, and these very few and minute ; 
fimbria dark purplish-chocolate ; depressed hind margins of abdominal segments 
reddened ; pygidial plate with a grooved V. This is not A. crcssoni. 
Andrata sodalis. Smith. 
9. Oa.xaca. Ordinary-looking species, easily known by hind tibiae and basal 
two-thirds (at least) of basal joint of hind tarsi clear light reddish-fulvous, strong- 
ly contrasting with the very dark brown hind femora, and apical part of basal joint 
of tarsus, as well as small joints of tarsus. The anterior and middle legs are 
also wholly very dark brown ; the tibial scopa is strongly plumose. Facial foveae 
fairly broad, their pubescence (seen from above) very dark seal browm ; clypeus 
with quite a broad median impunctate band or area ; abdomen practically 
impunctate. 
second specimen has only about half the basal joint of hind tarsi fulvous, 
junction of the two colors very oblique. Fimbria light brown, with a greyish 
tinge. 
Andrena simplex, Smith. 
9 . Length less than lo mm. ; clypeus minutely roughened, with scattered, 
shallow, piliferous punctures ; labrum with reddish hair, contrasting with the 
dull white hair of clypeus; third antennal joint longer than 4+5 ; disc of meso- 
thorax shining, with small, widely-separated punctures ; fovea short, not widely 
separated from eye ; area of metathorax merely roughened, very ill-defined ; 
metathorax with a concave truncation ; tegulae dark red ; stigma small, light red- 
dish with a dark margin ; third submarginal cell very broad above ; first three 
segments of abdomen dark reddish ; hair on outer face of hind tibia: plumose ; 
basal joint of middle tarsi quite broad. 
.indrena hilaris, Smith. 
.Mr. Viereck sent one from Clementon, N. J. I found Smith’s type identi- 
cal, except that it had dark red legs. 
Andrcna atiricoma, Smith. 
Mr. Viereck sent a Corvallis, Oregon, example of this remarkable species, 
and it was the same as the type. The type has the first recurrent nervure join- 
ing submarginal cell some distance basad of the middle. 
