138 THE CANADIAN ENTOMOLOGIST. 



3. Synhalonia speciosa, Cress. Berkeley, Cal., April 26 to May i, 

 Tivo females. Previously recorded from Colorado. 



4. Synhalonia acerba, Cress. $ . 



(^ . — Differs from 9 in having the clypeus and labrum yellow, the 

 antennae reaching back to the second abdominal segment and crenulated 

 toward tips (third joint is shorter than the first), and the legs clothed 

 with pale pubescence. The pubescence of the thorax, as in some females, 

 is strongly tinged with fulvous. The male is readily distinguished from 

 Edwardsii by having no pale pubescence on the second abdominal 

 segment. 



Berkeley, Cal., six specimens ; and San Mateo Co., Cal., two 

 specimens. April and May. Collected upon Brassica campestris and 

 Ranunculus californicus. Previously recorded from Nevada. 



5. Synhalonia albopilosa, n. sp. 



13 mm. Thorax small, clothed with white pubescence ; abdomen 

 large, oval. 



^ . — Head black, punctured, clothed with griseous pubescence, thin 

 on clypeus ; clypeus, except upper margin, and labrum, yellow ; antennae 

 entirely black, reaching slightly beyond the second abdominal segment, 

 crenulated toward tips, third joint shorter than the first. Thorax black, 

 finely punctured, not as broad as abdomen, clothed with rather long, 

 white pubescence, not entirely concealing the surface ; tegula black in 

 front, brownish behind ; wings hyaline ; legs clothed with pale pubes- 

 cence, apical joints of the tarsi brownish, intermediate tarsi long and 

 slender. Abdomen oval, broader than the thorax, black, shining, finely 

 punctured, apical margins of the segments pale brown ; first segment 

 with thin, erect, white hair, 2-5 with short, thin, black pubescence, a very 

 little white on the sides of the second, and that on 6-7 dark brown. 

 Venter almost nude, otherwise as above. 



Habitat. — Berkeley, Cal., April 18. One specimen, collected upon 

 Ranunculus californicus. 



6. Synhalonia Edwardsii, Cress. Berkeley, Cal., March 15 to May 



9. Sixteen males, collected upon Brassica campestris, Ranunculus cali- 

 fornicus, and Malvastrum capense, in botanic garden. 



7. Synhalonia intrudens. Cress. Berkeley, Cal. March, fourteen 

 males; and April 26, one male. Tulare, Cal. (H. O. Woodworth), May 



10, three males. Collected chiefly upon Brassica campestris. Previa 

 ously recorded from N^vadai, 



