rene Oia le 
VOL. XVII. OCTOBER, 1910. NO ans 





THE PROSOPIDIDZ OF SOUTHERN MAINE. 
By Joun H. Love tt. 
Waldoboro, Maine. 
The various species of Prosopis indigenous to southern Maine 
have been collected from June 16 to August 25. Of the 
eight local species enumerated in this paper only P. pygmea and 
P. modesta are common, while P. variifrons, verticalis and basalis 
are very rare. Specimens of these bees have been taken most 
frequently on the flowers of Aralia hispida and the garden black- 
berry (Rubus villosus), to both of which they are common visitors. 
They are also often found on the inflorescence of the golden-rods, 
and less frequently on many other blossoms. The local species 
may be separated by means of the following key: 
FEMALES. 
pmitirelyablackamlargeyspecicuw Onininass see iya as cal ee ee) basalis. 
Black with yellow marks........... Be acaahebin ch cota ni Aenea il, 
ito Collars blackvormunspottedi wha 7.5 acta ero ee Peas ere oh seer tate a. 
Collarzwithmunosy.cllowaspotseen oie e rier) asters nears ors cee 4. 
2. Face-marks subtriangular, yellow spots on tubercles, 
andloftent tegulses4<prmnm ss. 7 eek rae se ae be pysmaea. 
Face-marks narrow, tubercles and tegule dark, 
PEO\S LION B g citro Gnd D ctol ahold brs Heo EE MOTO eC Le eer ree ICER aot SCI saniculae. 
Face-marks bow-shaped, larger size,6 mm...................-000eeeees 3. 
3. A transverse mark on clypeus, tegule spotted, marks nearly white..variifrons. 
A transverse mark on clypeus, tegule dark, marks pale yellow..... elliptica. 
Clypeus wholly black, tegulee usually dark, marks yellow.......... verticalis. 
4. A yellow spot on base of costal nervure and on each tegula.......... ziziae. 
Base of costal nervure, or wing base, without a yellow spot, tegule 
usually> dank. cy ant ae eee ome RR Scat PRN. fe 2 Cee NR modesta. 
MALES. 
Collarswhollyo black: sepa ee mere sey ee ee net oC yates ane Maye Ueda § il 
Collar with twovellow Sitipes Grspotses sok aes oc ee aes fous cnc e ee ees b. 
177 
