{ i:s<i ) 



fiiij;er-liki', a little curved at end, and two dorsd-distal ones, seiiarated l)y a rounded 

 sinus, both jiointed, tooth-like, the upper uiore or less denticulated ; subdorsal i'old 

 of"clas|ier broad above the harpe, short, not extending beyond liasal third of clasper, 

 clothed with long bristles. Penis-sheath (PI. XXIX. f. 12) with a very long, 

 slender, apical process, which is concave ou the inner side, and is armed at the 

 outer side just before the rounded end with a minute tooth, reminding one of 

 the same structure of liigeiis and allies. 



?. Vaginal jilate (PI. XXI. f. 2) not unlike that of //. lanceolata in many 

 respects ; the mouth of the vagina in the middle of the plate, which is triangularly 

 produced proximally, longitudinally folded and grooved mesially ; behind the mouth 

 of the vagiiui there is an elongate, somewhat ovate, smooth tubercle. 



Larva with sharply-marked black oblique side-bands, horn and anal segment 

 with black granules, thorax not grannlose. — Food-plants : Si/riiic/ii, Liyastrum, 

 Chionanthus, etc. 



Pupa glossy, not strongly sculptured ; tongue-case reaching to end of foreleg, 

 free, touching breast only with swollen end. 



Iliih. Atlantic subregion, from Canada to Georgia, westwards to the Mississippi 

 basin. 



In the Tring Museum 2 larvae, 1 pupa, and 12 d d , ? ? from: Canada; 

 N. Jersey. 



109. Hyloicus gordius. 



Sphiiu fjonlius Cramer, Pap. Ex. iii. p. 91. t. 247. f. I! (1779) (Virginia). 



S ? . Similar in structure to II. Itiscitiosa, the lobes of the paronychium much 

 longer ; hindtibia more spiny iu ? than in <S . 



S. Tenth abdominal tergite (PI. XXVIII. f. 15) strongly compressed, highest 

 before end, hooked, pointed, upper surface reduced distally to a line ; sternite 

 (PI. XXVIII. f. 14) triangular, obtusely pointed. Clasj)er as in luscitiosa and 

 (Inipiferarum, more rounded dorsally, apex less broad ; harpe (PI. XXXIX. f. 9) 

 with a short, broad, concave, rounded, unarmed ventral process, and a much longer, 

 narrower, irregularly dentate subdorsal one, the latter curving ventrad ; subdorsal 

 fold of clasper broad, short. Penis-funnel (PI. XXVIII. f. 42, v-y) rather more 

 pointed than in Inscitiosa ; penis-sheath (PI. XXVIII. f. 42) ending in a straight, 

 solid, sharply pointed, conical process. 



?. Vaginal plate (PI. XXI. f. 3) convex mesially, impressed laterally, the 

 proximal edge sharply marked, month of vagina subtermiual, situated in a cavity 

 which extends to the distal edge of the plate. 



Larva bright green ; head with a yellow and a brown side-stripe ; seven oblique 

 side-bands, white, margined with red in front ; horn black, green above and beneath. 



On ap[)le, ash and Mijrica. 



Pupa with a very short free tongue-case, closely applied to the breast. 



Two broods. 



Ilab. Atlantic subregion, from Canada to Georgia, westward to the Mississijjpi 

 basin and Colorado. 



Two subspecies : 



a. IT. gordius oslari subsp. nov. 

 c? ? . Larger than the Atlantic form, ])aler, especially the forewing, which is 

 less shaded with black on disc ; discal band of underside of hindwing less shar])Iy 

 marked ; black mesial spots of underside of abdomen very small. 



