OF WASHINGTON, VOLUME XII, lulu. 185 



Since this lot of material was all reared from the same 

 colony of Aphis gossypii inhabiting a greenhouse where there 

 would seem to be less likelihood of two species occurring coinci- 

 dentally than in the open, and since in it were individuals 

 representing exactly the descriptions of the two species L. 

 testaceipes and L. cilraphis, the suspicion arose that possibly 

 the two were the same. An examination of the types convinced 

 me that the suspicion was well founded and that the two 

 species were incorrectly separated. The opportunity was 

 taken to examine the types of the species suppressed by 

 Coquillett and no reason could be found to doubt the correct- 

 ness of his conclusion. Therefore L. dtraphis with its syno- 

 nyms should in my opinion become synonyms of L. testaceipes. 



Lysiphlebus persicaphidis Ashmead. 



Lysiphlebus persicaphidis Ashmead, Proc. U. S. Nat. Mus., 1888, 



p. 668. 

 Aphidius persiaphis Cook, Bui. 73, Mich. Agri. Col., 1891, p. 12. 



This species was first described by Dr. Ashmead from Cali- 

 fornia, where it was parasitic upon an aphis infesting peach. 

 Prof. A. J. Cook three years later described a parasite of 

 J/i^y/5 persiccp from Michigan. Prof. R. H. Pettit, of the 

 Michigan Agricultural College, at my request very kindly sent 

 a type specimen of Aphidius persiaphis Cook for study. 

 Comparison of this specimen, which unfortunately arrived in 

 a somewhat damaged condition, with the types and description 

 of L. persicaphidis failed to disclose any difference between 

 the two species. Aphid ins persiaphis Cook should, in the 

 opinion of the writer, be considered a synonym of Lysiphlebus 

 persicaphidis Ashm. 



Praon simulans Provancher. 



Aphidaria simulans Provancher, Add. Faune Can. Hym., 1886, 



p. 153. 

 Praon simulans Provancher, Add. Faune Can. Hym., 1886, p. 395. 



Five specimens of this species, one male and four females, 

 were reared from Aphis rndbcckuc Fitch on Solidago at 

 College Park, Maryland, in July, 1909. The male antennae 

 are 22-joiuted and the female 19-jointed in these specimens 

 Provancher does not mention the number of antennal joints in 

 his description. My specimens are slightly darker than the 

 Provancher types, but otherwise identical. 



