353 



Parasites. Hosts. 



Chelonus parvus Say Cecidomyia s. -strobile-ides Walsh. Pahreah, 



Utah. 

 Chelonns nanus Prov Nematus gall on Willow. Los Angeles, 



Cal. 



Subfamily Sigalphinse. 



Sigalphus curculionis Fitch Conotrachelus nenuphar Hbst. St. Louis, 



Mo., June 15 to July 21, 1870. 

 Borer in stalk of Ambrosia. St. Louis, Mo. , 



May 4, 1873. 

 Sigalphus copturi Riley MS Copturus longulus'Lec. Washington, D. C. 



June 2, 1883. 

 Sigalphus nigripes Riley MS Andricus coxii Bass. Fort Grant, Ariz., 



July 27, 1883. 

 Schizoprymnus texanus Cr Trypeta solidaginis Fitch on S. canadensis. 



Washington, D. C, May 26, 1880. 

 Trypeta gall on Solidago. Utah ? 1881. 



(To be continued.) 



ANTHRAX PARASITIC ON CUT- WORMS. 



Four perfect bee-flies (family Bombyliidce) which correspond with the 

 description of Anthrax hypomelas Macq., have been sent us by our Indi- 

 ana agent, Mr. F. M. Webster, and were bred by him last summer from 

 the pupse of a cut-worm which proved to be that of Agrotis herilis. 

 Prof. G. P. Gillette, of the Iowa Agricultural Experiment Station, has 

 also shown us one of three specimens of Anthrax (scrobicidata Loew) 

 bred by him the past summer from cut-worm larvae, the species undeter- 

 mined. More recently Mr. Goquillett sent us a note for publication, 

 covering a similar experience, from which we may quote the following: 



Mr. Edwin C. Van Dyke, of this city, who is an enthusiastic young collector of in- 

 sects, informs me that on one occasion he placed a Lepidopterous chrysalis in a box 

 by itself, and that when next examined this box contained a Dipterous pupae ; the 

 Lepidopterous chrysalis was found to be entirely empty, and in one end of it was a 

 large opening out of which the Dipterous larva had evidently issued and afterward 

 pupated. In due time this pupa produced the perfect fly, and this, together with 

 its cast-off pupa-skin and the chrysalis-skin of its host, was kindly presented to me 

 by Mr. Van Dyke. The chrysalis which it infested closely resembled that of Taenio- 

 campa rufula Grote, a Noctuid which is rather common in this locality. The fly 

 proves to be a specimen of Anthrax molitor Lcew, one of the commonest Bombyliids 

 found in this State and scarcely distinguishable from the common Anthrax flava of 

 Europe. The pupa very closely resembles that of Aphoobantus mus O. S., figured at 5, 

 5a and 5b, Plate XVI, of the Second Report of the U. S. Entomological Commission. 

 On either side of the last segment are three short teeth, and on the under side of the 

 head are five black tubercles, the anterior one being the largest, and the remaining 

 four being disposed in two transverse pairs, those comprising the last pair being con- 

 tiguous at their bases. 



