APPLE AND WALNUT LEAF-CRUMPLER8. 123 



here only to carefully observe, and put on record, a few of the data 

 upou which the settlement of such questions must ultimately depend. 



DESCRIPTION. 



Length, three-tenths of an inch. Expanse of wings, seven-tenths, cinereous. Top of the 

 head, collar and tegula;, in some specimens, almost white. Fore wings cinereous, with nearly 

 the basal third usually paler; a large triangular blackish spot on the middle of the costa, just 

 beyond which and nearly in the middle of the wing are two black dots, placed transversely; 

 about one-fourth from the end of the wing is a very obscure blackish double bar, and still 

 nearer the tip an obscure row of blackish dots; on the posterior part of the wing, or that part 

 which is opposite the costa, are two rather large pale brick colored spots, one at the base and 

 the other one-third of the way to the tip. Hind wings paler, somewhat dusky towards the tip. 

 Abdomen inclining to pale buff, more or less distinctly fasciate with black at the bases of the 

 segments. 



All the above characters, except the occasional whitish on the head and thorax and the 

 paler base of the fore wings, are found much more conspicuously on the Fhycita ntbulo. In- 

 deed, these marks are usually either wholly or partially indistinguishable on the P. Juglandis, 

 and it would be scarcely possible to distinguish the two insects by any verbal description, if 

 we did not take into account their very distinctive characters and habits in the larva state. 

 As these characters are well exhibited in the accompanying figures, it will not be necessary 

 to describe them more fully than we have already done in the body of the article. We may 

 also add, as a pretty constant distinctive mark between the two moths, that the two dots on 

 the disk of the upper wing in P. juglandis almost always run together in P. nebulo, forming 

 a very short, black, transverse bar. 



All the Ichneumon-flies which I bred from these insects I passed over to Mr. Riley, who 

 will describe them in his next annual report. 



The Taehina-fly, above spoken of as having been bred from the larvae of Phycita nebulo, I 

 describe below. 



Dipterous pakasite of Phycita nebtjlo. 

 ( Tachina {Ezorlsta) phycitce, n. sp. ) 



Male — Length, 0.20 inch, or two-tenths of an inch. Antennte black; third joint twice as 

 long as the second. Face silvery, without bristles at the sides; sides of the front with a dull 

 golden tint, becoming silvery at its junction with the face ; the middle black vitta occupying 

 a little more than half of the interocular space ; frontal bristles continued down the face to 

 opposite the junction of the second and third joints of the antennae. Palpi blackish brown. 

 Eyes hairy. Thorax black, with the ordinary cinereous stripes scarcely perceptible. Abdomen 

 black, varied with cinereous at the bases of the segments; a large fulvous spot on the side of 

 the abdomen, occupying nearly the whole of the side of the second segment, about half of the 

 third, and sometimes a small spot on the first; bristles on the middle, as well as at the end, 

 of the second and third segments. Venation of the wings of the usual type ; first posterior 

 cell almost closed before the end of the wing; fourth long vein slightly curved beyond the 

 angle; fifth long vein prolonged to the margin; hind cross vein moderately curved. Tarsal 

 claws and pulrilli unusually long. 



Female — A single specimen, a very little larger than the others, was obtained from the same 

 lot of Phycitce, which may be the female of this species. It differs as follows: Front broader. 

 Antennae inclining to bi'own. The cinereous markings on the body more distinct. The tip 

 of the abdomen fulvous, but without the fulvous spot on the aide, and with the tarsal claws of 

 the usual length. 



