( 13C ) 



finger-like, a little curved at end, and two dorso-distal ones, separated by a ronnded 

 sinns, both jiointed, tooth-like, the upper more or less denticulated ; subdorsal fold 

 of clasper broad above the harpe, short, not extending beyond basal third of clasper, 

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

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

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

 the same structure of lugens and allies. 



?. Vaginal plate (PI. XXI. f. 2) not unlike that of //. l/oiceolata in many 

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

 produced jjroximally, longitudinally folded and grooved mesially ; behind the month 

 of the vagina 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 granulose. — Food-plants : Si/ringn, Liyustrum, 

 Chionantkas, etc. 



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

 free, touching breast only with swollen end. 



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

 basin. 



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

 N. Jersey. 



loo. Hyloicus gordius. 



SpUrix gonlius Cramer, Pap. Ex. iii. p. 91. t. 247. f. B (1779) (Virginia). 



<S ? . Similar in strncture to 77. luscitiosa, the lobes of the paronychium much 

 longer ; hindtibia more spiny in ? than in S . 



(J. 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. Clasper as in luscitiosa and 

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

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

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

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

 pointed than in Z/?S(riYwa ;" penis-sheath (PI. XXVIII. f. 42) ending in a straight, 

 solid, shar])ly pointed, conical process. 



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

 proximal edge sharply marked, moutii of vagina subterminal, 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 ; Imrn black, green above and beneath. 



On ajiiile, ash and Mijrica. 



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



Two broods. 



Hah. Atlantic snbregion, from Canada to Georgia, westward to the Mississippi 

 basin and (!olorado. 



Two subspecies : 



a. IT. qordius oslart subsp. nov. 

 S ? . Larger than the Atlantic form, paler, especially the forewing, which is 

 less shaded with black on disc ; discal band of underside of hindwing less sharply 

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



