53 



Mr. H. F. Wickham has recorded this species from Idaho, Dr. Ham- 

 ilton (Trans. Amer. Entom. Soc, Vol. XXI. p. -±05) records it from 

 Illinois, and Dr. Dietz (1. c, p. 31) states that it occurs also in California. 



O. cyanipennis can be readih r distinguished from any other Ceu- 

 torhynchus occurring in this countiy, except C. bolteri Dietz, by its 

 color alone. Its elytra are steel blue, hence the specific name. It is 

 larger than bolter i, and has toothed claws. 



In Bargagli's reference to this species (1. c, p. 259) he gives sulci- 

 collis Gyll. as a synonym, but C. sulcicollis Payk. is distinct. He 

 refers to its occurrence on Sinapis arvensis, Capsella {Bursa) bursa- 

 pastoris, Achillea millefolium, cabbage, rape, and horse-radish, giving 

 references in full for food plants, as well as for notes on the larva 

 and its habits. 



Although this species has been established in America for a great 

 many years, it has yet to be found attacking useful plants; in fact, to 

 the best of the writer's knowledge, no food plant has been observed 

 in this country. 



FOOD HABITS OF NATIVE SPECIES OF CEUTORHYNCHUS. 



Oeutorhynchus septentrioiiis Gyll. — At the same time that the cab- 

 bage curculio was observed on the Department grounds on Sisym- 

 brium oTfirinolt during the first week of May, 1899, the beetles of this 

 species were found, but not in the same abundance, in a truck garden 

 at Tennallytown, D. C. They occurred in much greater abundance 

 than the cabbage curculio, being particularly numerous in a large bed 

 of horse-radish and comparatively rare on cultivated mustard. May 

 13 beetles were found by the score on single plants of yellow rocket 

 (Barbarea barbarea) at RosslymVa., occurring on every plant examined. 



O. adjunct us Dietz, from Utah and Nevada, has been collected by 

 Mr. Schwarz, on a species of Stanley a. 



O. hamiltoni Dietz has been found in Massachusetts on the mari- 

 time plant sea rocket (Cakile ainericana). 



ADDITIONAL NOTES ON THE IMPORTED CABBAGE WEBWORM. 



(Hellula undalis Fab. ) 



Since the article on the imported cabbage webworm. Hellula wndalis 

 Fab., was published (Bui. 19, n. s., pp. 51-57) a number of facts have 

 been ascertained that are new and that bear upon the biology, distri- 

 bution, and probable origin of this species. An additional economic 

 article on this insect, by Mr. W. M. Scott (Bui. No. 1, Georgia State 

 Board of Entomology, April, 1899, pp. 17-25), has appeared, and the 

 writer has obtained access to three recently published works treating 

 of this species which were not before available. The insect has been 

 carried through its several stages, and this, with the descriptions of the 



