Bees from New Mexico. 137 
very little developed, first recurrent nervure joining second 
submarginal cell at a distance from the origin of the first 
transverso-cubital nervure greater than half the length of 
the latter. Abdomen suboval, without a subbasal ventral 
projection; apex with four approximately equidistant teeth, 
the median ones not broadened. 
?. Similar to the male, with a white ventral scopa. Ven- 
tral base of abdomen with a short tooth-like projection. 
Antenne shorter. 
Hab. Las Cruces, N. M., on Bigelowia Wrightit, Sept. 23, 
amale. Alsoa male, June 16, on Aster spinosus (CkIl. 3036). 
A female was taken as early as April 27 on the occasion of a 
meeting of the Agricultural College Field Club. 
This species belongs to an entirely different group from 
asteris &c. 
B. Legs entirely black. 
a. First recurrent nervure uniting with first transverso-cubital. 
FHleriades crucifera, sp. n. 
36. Length about or slightly over 6 millim. 
In appearance, structure and punctuation, &c. this is like 
the male of cardnata, but it differs as follows :— 
crucifera &. 
First recurrent nervure uniting 
with the first transverso-cubital. 
First ventral segment of abdo- 
men shovel-shaped, viewed late- 
rally not unlike the head of the 
snake Heterodon nasicus upside 
down. 
Face a little narrower; clypeus 
only fringed with white hair. 
carinata 3. 
First recurrent nervure not so 
uniting. 
First ventral segment of abdo- 
men produced into a large blunt 
tooth, erect and a little excavated 
posteriorly. 
Face a little broader; clypeus 
covered with white hair. 
Hab. Santa Fé, N. M., July 18 (CkIl. 1546). 
b. First recurrent nervure reaching second submarginal cell at a point 
distant from the origin of the first transverso-cubital less than half 
the length of the latter. 
Stigma distinct. 
Thorax usually very coarsely sculptured. 
Wings smoky at apex. 
Heriades carinata, Cresson, 1864. 
I have an [Illinois specimen from Mr. Robertson, and it 
agrees with the insect as found in New Mexico. 
Females 
are before me from the following places:—(1) Santa Fé, 
N.M., Aug. 2 and 3, at flowers of Grindelia squarrosa, three ; 
