304 THE CANADIAN ENTOMOLOGIST. 



species already described. There are also some small green females, but 

 rather poor specimens, so they are not described, although apparently new. 



Agapostemon, Sm. 



BY J. C. CRAWFORD, DALLAS, lEXAS. 



1. Females • 2. 



Males 6. 



2. Abdomen black, with hair bands on the bases of segments two to 



four viridtilus, Fabr. 



3. Mesothorax with fine punctures and interspersed large punctures ... 4. 

 Mesothorax not with double punctuation 5. 



4. Base of.metathorax with indications of a triangular 



enclosure Texamis subtilior, Ckll. 



No enclosure as above, size large, about 12 mm boreaits, Cwfd. 



5. Larger, blue-green, mesothorax rugoso-punctate femoraius, Cwfd. 



Smaller, golden-green, punctures of mesothorax d\s\.\\\Q.\..radiatus, Say. 



6. Hind femora almost globose .femoratus^ Cwfd. 



Hind femora not greatly swollen 7. 



7. Last ventral segment with a median longitudinal 



carina , viridiilus, Fabr. 



No carina on last ventral 8. 



8. Abdomen with six yellow bands, pubescence on apical segments 



dark radiatus, Say. 



Abdomen with five yellow bands, pubescence on apical segments 

 light . . sp. 



A. viridu/us, Fabr. — Corvallis, Ore. Three $ 's May and June ; 3 

 c^ 's Sept. and Oct.; Fossil, Ore., Sept,, one ^. 



A. radiatiis. Say.— Recorded by Prof. Cockerell from Pasco, Wash. 



A. fevioratus, Cwfd. — Type material from Washington. One 9 

 labelled W. T.; 2 ^^ ^s, Mt. Hood, Ore.; W. T. 



A. boreaiis, Cwfd. — Type from Vancouver. 



A. Texaiius subtilior, Ckll. — A series from Corvallis collected during 

 May and June, varying from the typical form to that of Texamis and to 

 specimens large enough for borealis. The $, recorded as sp. is probably 

 the $ of this species, but further collections are needed to determine 

 their status. From this material it would appear that the males can be 

 easily separated, while the females are much more difficult. 



