<l. II. <-lii'rsis c/icisis. 



Lethe chersim Hiibner, /.■•. 



Sjihlnx cinereii Harris, /.,-. (IS.i'J) : i<l., tiix. Inj. IV//. p. 328 (1842) ; Emm., y,il. Ilhl. N. Ywl- 

 p. 219 (1854) ; Walk., Lhl Li/i. Jus. B.'M. viii. p. 217. n. f. (18.00) (U. Ht.) ; Clem., Journ. 

 Ar. N. Sri. I'hihid. iv. p. KIO. n. (U (lH;')!t) (Ma-s. ; Wisconsin) ; Morris, Oil. Lcp. X Am. 

 p. 18 (1860) ; Clem., in Morris, Sijmipii. p. 194. n. 2 (I8i;2) (Mass. ; Wise. ; S. States) ; Lintn., 

 Vriir. Knt. Sac. I'liilail. iii. p. 655 (1864) (descr. of /., on (Jlciiccac) ; Scudd., rti/rhf ii. p. 76 

 (1877) (larva) ; Hag., Puj/ilic iii, p. 62 (1883) (this name to be retained). 



Sj>liinx chersU, Grote & Robin.son, Pror. Ent. Sue. P/iilad. v. p. 165. n. 92. & p. 190 (1865) (Atlantic 

 district) ; Beth., Canad. Kid. i. p. 17. n. 22 (1868) (Canada) ; Harris, ed. Scudd., Eal. Corr. 

 p. 282 (1869) (descr. of larva) ; Bowles, Canad. ICiif. iii. p. 143 (1871) (Quebec, vi. vii.) ; 

 Lintn., Knl. Cmdr. i. p. 192 & iii. p. 17 (1872) (N. York, vi., larva on lilac viii.) ; Thaxt., 

 Psxji-he i. p. 30 (1874) (Newton, Mass., vii.) ; Grote, BtiU. Buffalo Soc. N. Sri. i. p. 26 (1874) 

 (Canada ; Mass. ; N.Y. ; Penn.) ; Boisd., Sjier. Urn. Up. Ilel. i. p. 93. n. 30 (1875) ; Caulf., 

 Canad. Knt. vii. p. 241. n. 13 (1875) (Montreal, common, vi.) ; Grote, I.e. ii. p. 228. n. 58 



(1876) ; Butl,, Trans. Zool. Sue. Loud. ix. p. 017. n. 1 (1877) ; Grote, I.e. iii. p. 224. n. 59 



(1877) (Canada to Penn.) ; North., Canad. Knt. x. p. 10 (1878) (larva on black ash in viii. 

 ix., Chicago) ; Mart., Trans. Dept. Arjr. Jllin. xviii. p. 105 (1880) (larva) ; Pil., Papilio ii. p. 66 

 (1882) (Dayton. O.,one ? ) ; Reed, Rept. Knt. Soc. Ont.xii. p. 65 (1882) (larva) ; Edw., Papdio 

 iii. p. 127 (1883) (larva, Siirini/a) ; Fish., Canad. Ent. xv. p. 238 (1883) (Buffalo, larva, pupa) ; 

 Fern., diid., xvi. p. 21 (1884) (Orono, Me., very common) ; id., Sphinr/. N. Knyl. p. 42. n. 16 

 (1886) (larva, pupa ; ash, lilac) ; Grote, ffawl.-.Vot/is N. Am. p. 44 (1886) ; Edw., Bull. 

 U. St. Nat. .Mils. XXXV. p. 47 (1889) (Ut. rel. to metam.) ; Hyar, in Riley, Ins. Life iii. p. 322 

 (1891) (N.Y., electr. light) ; Kirby, Cat. Lqi. Ifet. i. p. 690. n. 2 (1892) ; Beutenm., Bidl. 

 Aincr. Mils. N. IL vii. p. 303. t. 5. f. 3 (1896) (N.Y., /., p., i. ■ lilac, privet, ash) ; Hanh., 

 Canad. Ent. xxix. p. 292 (1897) (Manitoba) ; Beutenm., /.-• x. p. 310 (1898) (N.Y.) ; Rowl., 

 Ent. Ni'ics X. p. 11 (1899) (Mis.souri, on ash). 



S ? . Wings and body with a distinct clayish tinge. Fringe of forcwiug nearly 

 all brown, the white scales so covered by brown ones that only their tips are visible. 



Bab. Atlantic Subregion : Canada to Georgia, westward to the Mississippi basin. 



In the Tring Museum 3 larvae, 1 pupa, 10 cJc?, 8 ? ? from : Canada ; N. Jersey ; 

 N. York ; Virginia ; SoiUh Dakota. 



The three individuals from the last place are scarcely different from oreoilaphnc. 

 An apparently bred specimen from Texas (received from Messrs. Standinger and 

 Bang-Haas) is the smallest chersis we have seen, its forewiug measuring only 

 34 mm. in length ; it may represent a Texau subspecies, but it is more likely that 

 the larva was underfed, and tliat the specimen is therefore an artificially dwarfed 

 inilividual. 



1(115. Hyloicus vancoiiverensis (PI. Xlll. f. 3. 4, SS). 



Sphinx vancoiicerensis Edwards, Proe. Calif. Ac. N. Sci. v. p. Ill (1874) (Vancouver I., viii.) : 

 Grote, Bull. Buffalo Soc. N. Sei. ii. p. 228. n. 61 (1875) ; id., I.e. iii. p. 224. n. 62 (1877) 

 (Calif.) ; Edw., Bull. Ainer. Miis. N. IL iv. p. 170 (1892) (Big Tree, Calif. ; Oregon) ; Trum., 

 Knt. News viii. p. 27 (1897) (S, Dakota), 



S/>liiiix dnipiferariiin, HoWdiid, Canad. Knt. xviii. p. 103 (1881;) (va.nc. = driijiif. ex err.); Smith, 

 Trans. Amer. Ent. Sne. xv. p. 177 (1888). 



Sphinx vashti Strecker, L.rp. p. 136. t. 15. f. 4 (1878) (Arizona) ; Dyar, Pi<i/rlir vii. p. 177 (18'J4) 

 (Montana ; egg, larval stages, pupa ; on Syinph. rue.). 



Sphiu.r all,e.'<cens Tepper, Bull. Brouhli/n Ent. Soc. iv. p. 1. t. 1. f. 3 (1881) (Colorado). 



c? ? . Mesothoracic tegula with heavy black edge, no mesial line, middle of 

 mesothorax either grey or black. Basi-costal area of forewing whitish grey, sparely 

 limited behind by a brownish black area : fringe with a few grey scales beneath 

 between the veins. White discal band of hiudwing very clearly marked on the 

 underside, black discal band not obviously dentate. Some of the spines of 



