— 150— 



"This species is black, with legs, ventral surface of abdomen, ring 

 about the eyes, and base of the wings yellow. The antennae are 4 mm. 

 long, the wings about 3 mm. The ovipositor is black and about as 

 long as the wings. The thorax and abdomen are finely punctured. "' 



In working over the IchneumonidcB in the Laboratory collection I 

 found many examples of a species oi Cremastus which had been bred from 

 Phoxopteris comptdna. I was at first disposed to refer them to C. piceus, 

 Cresson, (Trans. Am. EnL Soc, Vol. IV, p. 176), but on sending a 

 specimen to Mr. Cresson for comparison with the type, was kindly in- 

 formed that it dififeied materially from this species, and in fact from 

 everything else in the collection of the American Entomological Society. 

 I had seen the Michigan species and from my recollection of it together 

 with the above description, surmised that it was the same as ours, and 

 on comparing a specimen, kindly submitted to me by Prof Cook, found 

 my surmise to be correct 



Besides this Cremastus we have bred from P. comptana a single spe- 

 cimen of a very well marked species of Glypia which is also apparently 

 undescribed. The first mentioned species is described below under the 

 name Cremastus cookii, the specific name being given in honor of the 

 gentleman who first called attention to the insect ; and the second is 

 treated of as Glypta phoxopteridis, being so called because of the insect it 

 infests. 



Cremastus cookii, sp. n. 



The North American species of Cremastus have as yet received little 

 attention. Eight species are recognized by Cresson in his Synopsis of the 

 Hymenoptera (pp. 204, 328), five of which were described by Provancher 

 from field specimens ; two by Mr. Cresson; one (C retmice) having been 

 bred from Retinia rigidana, Fernald, and the other (C. piceus^ collected 

 in the field ; and one (C. /orbesi) by myself, it having been bred from 

 Teras ?ninuta, Robinson. Hence it appears that but two of the eight 

 American species now known have had their hosts recorded. 



A lot of leaf-roller larvag were collected on blackberry at Anna, III, 

 June 6, 1884. Transferred to breeding cages at Normal three of the 

 parasites emerged June 28, two more July i, and one more July 3. The 

 moths {P. comptana) began emerging Jinie 21 and continued to appear 

 until July i. Both sexes of the parasites were represented. 



Anoth-jr lot of the same Tortricid collected on raspberry at the same 

 time and place yielded two specimens {(^(^) of the parasite, differing 

 somewhat in the color of the face from the others, which are treated of 

 below as variety rufus. 



