( r^'J ) 



fnrewiiig correspoudiiig to tlie bases of the brauches of tbe radial tracbea in 

 the cbrysalis. The bbick veiitro-lateral lines of the abdomen are very distinct. 



J. Tenth abdominal tergite rather strongly curved, sides of process nearly 

 liaraliel, apex rather abrn]itly narrowed to an obtnsely pointed book, npjier surface 

 rather flattened, underside convex; sternite witli a broad, distally somewhat 

 narrowed, gently curved, apically sinuate and rounded mesial lobe. CJlasper broadly 

 sole-shaped, rather narrow at end, dorsal margin more rounded than ventral one ; 

 harpe (PI. XXXVllI. f. ID) produced ventro-distally into a tinger-lilce process, which 

 is slightly curved ; the dorso-distal corner occupied by a heavy curved tootli, 

 accompanied at the distal edge by a few smaller teeth. Penis-funnel (PI. XXVI II. 

 f 41) veutrally produced into a solid pointed cone ; penis-sheath dorsally prolonged 

 into a concave, apically rounded process, which is armed just before end by a 

 sharp tooth. 



5. Vaginal plate (PI. XXI. f 4) much wrinkled, the proximal mesial part 

 convex, raised in front of tlie vaginal cavity, forming a kind of roof over it which 

 conceals the opening of the vagina i'rom view ; behind the cavity there is a smooth 

 large tubercle, rather alirui)tly truncate ])roximally, the plate at both sides of tliis 

 tubercle concave. 



Larva with red obliiine side-liands, bordered with white distally ; head and 

 horn rugose, not granulose. — Food-plants : I'nii/ug ; Pirns : Si/rini/a : etc. 



Pupa : tongue-case free, mm. long, obviously longer than in liyiistri ; 

 cremaster ending in two rather long points. 



Two broods ; apparently no seasonal variation. 



llnh. Nearctic region. 



Two geographical races which art structunilly the same. 



(I. II. ilriijiifi-riinnn ilrupij'erarum. 



Sjiliinx (Ini/iifi-ranim Aliljot & Smith, /.<■. ; Harris, in SiWim., Jmini. Sci. Art x.\xvl. p. 2'J4. u. 3 

 (18311) ; Walker, I.hl L,j,. Ins. 11..)/. viii. p. 218. n. 7 (185G) ; Fitch, Rrpl. Ins. X.Y. lii. p, .'iOi 

 (186fi) ; Clem., ./.,«/■«. Ac. N. Sci. I'liihul iv. p. 172. n. G8 (1859) (Penn. ; Mass. ; on plum) ; 

 Morris, Cul. Lrp. N. Avi. p. IS (ISliO) ; Cem., in Morris, Syn. Lap. N. Am. p. 197. n. (18152) ; 

 Harris ed. Flint, /».•.•. Inj. Veijrt. p. 328 (1802); Lintn., Piw. Ent. Soc. Philml. iii. p. G.'.S 

 (1804) (descr. of /.); Grote & Rob., Prw. Ent. Soo. Phihid. v. p. 105. D. 93 (IHOfj) (.Atlantic 

 dis.trict); Reed, Omul. Ent. m. -p. ^o. lig. 1. 2. 3 {l.,p.,i.) (1871) (Oatario, vii viii.); Bowles, 

 ilhl. p. 143 (1871) (Ontario) (vi.) ; Lintn., Ent. Onitr. i. p. 192 & iii. p. 179 (1872) (\.Y., vi., 

 larva on plum viii.) ; Thaxt., P.iijclie i. p. 30 (1874) (Newton, Mass., Tii.) ; Boisd.. Sjiec. Gen. 

 Lip. Hit. i. p. 97. n. 34 (1875); Caulf., C'linad. Ent. vii. p. 241. n. 14 (1875) (Montreal, common, 

 vi. vii.) ; Mart., Tritns. Vept. Ai/i: Illin. xviii. App. p. 104 (1880) (larva) ; Reed, liept. Ent. 

 Sue. (Int. xii. p. 07. fig. (1K82) (metam.) ; Sauud., Ins. Inj. Fruit p. 103. f. 170. 171. 172 

 (1883) (all stages descr.) ; Fern., Cannd. Ent. xvi. p, 21 (1884) (Orono, Me., common) ; Jack., 

 itiid. XVM. p. 31 (1885) (Quebec) ; Purn., tiphing. N. Enyl. p. 38. n. 14. t. 1. f. 2 (i.). 3 (/.). 4 {p) 

 (1880); Urote, Ilamk-Moths X. Am. p. 43 (1880); Smith, Trans. Atner. Ent. Snc. xv. p. 177 

 (188H) (partiiii); Edw., Bull. C. St. N. Mus. xxxvi. p. 47 (1889) ; Dyar, in Riley, Ins. Life 

 iii. p. 322 (1891) (X.Y. ; electr. light) ; Bouteiim., Bull. Amer. Mns. N.H. vii. p. 300. t. 6. f. 1 

 (1S1I5) (.\'.Y. ; descr. of l.,p.,i.\ on apple, jihim, Cellls) \ id., /.c. viii. p. 291 (1890) (metum., 

 on I'ninns) ; Truni., Ent. News viii. p. 27 (1X97) (.S. Dakota) ; Hanh., Qrnad. Ent. xxix. p. 292 

 (1H97) (Manitoba) ; Rowl., Ent. Xrios x. p. 11 (1899) (Missouri ; on apple, plum) ; Nash, ilml. 

 XI. p. 581. fig. (1900) (fine photo of larva) ; Flctch., liej)!. Ent. Sue. Ont. xxx. p. 32. f. (/.). 

 7 (/.) (1900) ; Fern., Ent. News xi. p. .081. t. 10 (1900). 



<i ?. Tlie well-known Atlantic form. 



IIiiL (Canada t(^ (Jcorgia westward to the Mississippi busiii ; rather common. 

 In the Tring Musenm 4 hirvae, 1 pui)a, and 8 cJcJ, 11 ?? from: Ontario; 

 Maine ; .\. .Jersey ; New York. 



