THE CANADIAN ENTOMOLOGIST. 301 



this as an "impossible combination." Tn this designation he is perfectly- 

 right; but I never held the view attributed to me. I pointed out an 

 analogy in the development of a process on the eighth abdominal 

 segment in the larvae of these families, but I never intended to imply 

 any homology between them, and I do not think that my article, referred 

 to by Mr. Tutt, reads in this way. 



THE HYMENOPTEROUS PARASITES OF PHENACOCCUS 



CAVALLI^, CKLL. 



BY WILLIAM H. ASHMEAD, WASHINGTON, D. C. 



About the first of October, Prof. T. D. A. Cockerell sent me for 

 names several parasites bred by him from a Coccid, Phenacoccus cavallicE, 

 Ckll., collected at Roswell, New Mexico. In the lot were four distinct 

 species of Chalcids, two being new, but one of these is a hyperparasite, 

 as follows : (i) Blepyrus phenacocci, sp. nov.; (2) Cheiloneurus dactylopii, 

 How.; (3) Signiphora dactylopii, Ashm.; and (4) Tetrastichus blepyri, sp. 

 nov. The new species are described below : 



Blepyrus phenacocci, sp. n. — ? . Length, 1.3 to 1.4 mm. Stature 

 and general appearance similar to B. mexicanus, How. Aeneous black, 

 the thimble-like punctuation of the head more or less metallic greenish ; 

 antennae, except the pedicel and the club, all tarsi, and the extreme tips of 

 middle and hind tibiae, honey-yellow ; the pedicel is obconical, about 

 thrice as long as thick at apex, brown-black ; the funicle is 6-jointed, the 

 joints transverse, gradually widening to the club, the latter being large, 

 stout and black. Wings hyaline, the tegulas black, the veins dark brown, 

 the marginal vein very short, hardly twice as long as thick, the post- 

 marginal and stigmal veins long, about equal. 



$ . Length, 1 mm. Agrees well with the female, except in colour 

 and structure of the antennae : the antennae are wholly black, except the 

 scape narrowly at the extreme apex and beneath towards apex, the pedicel 

 being much shorter, only a little longer than thick, while the flagellum is 

 filiform, clothed with a short pubescence, the joints longer than thick. 



Type.— Cat. No. 6604, U. S. N. M. 



Hab. — New Mexico : Roswell. 



Host. — Rhynch.: Phenacoccus cavallicr, Ckll. 



