UG MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES 



Expiuiso of fore wing^s, S , 55 mm.; 9 , 04 mm. Lciijith of one fore wiiio-, J . L'T mm.; 9 , 

 32 mm. Breadth of one fore wincr, S, 12.5 mm.; 9, 1<> mm. Lenyth of hincl wiiio-. s . 1(5 

 mm.; 9,20 mm. Breadth of hind wing, J^ , 1-4 mm. ; 9,15 mm. 



GeiKjrcqyhlciil dixtriltution. — Jalapa. Mexico (Edward.s); State of Vera Cruz (Schaus). 

 Described from EdwardsV type in .American Mus. Nat. History. 



^^NISOTA DISSIIVIILIS (I3oisdiival). 



Adi'locephala dissimilis Boisduval, Aiinales Soc. Ent. Belgique XV, p. 93, 1872. 



Dryocampa dissimilis Dkuce, Biol. Centr.-Amer. Lep. Het. 1, p. 170, No. 1, tab. 15, fig.s. 9. 10, 18S6. — Kirbv, 

 Syn. Cat. I^p. Het., p. 740, 1892. 



Jfale. — Boi.sduval describes the mah' as of the size of .1. iiiitlKniih's; the fore wings of a clear 

 reddish l)rown with l)lacl-;is]i veins; extradiscal line oblique. ])lack. preceded on the discal cell by 

 a large white dot. The hind wings are entirely black. The tliorax reddish yellow; the abdoDien 

 black above, with an anal brusli of yellow hairs. The wings beneath reddish, paler at the outer 

 edge, with the veins and a conunon line black. It is also figured by Druce in the Biologia 

 Central!- Americana. 



1 9 • Head small, not prominent. Antenna* tiliform. slender, as u>ual. and much as in 

 A. »t'igiiii(. Head, thorax, and base of abdomen uniformly tleep ocher. 



Fore wings uniformly pinkish red. almost purplish brick red. with no dark specks. No 

 basal line; extradiscal line dusk}-, grayish externally, not sinuous, but straight, oblique in its 

 course, ending on the costa at some distance from the apex. A rather large distinct white discal 

 spot. Veins dark brown. 



Hind wings produced toward the apex, outer edge convex, the wings dusky, veins dark 

 brown; fringe dark, no discal spot, but the extradiscal line is broad. Idackish. and diffuse. 



L'nder side of fore wings as above, but a little paler and the veins are darker and wider. 

 No discal spots on wings of either pair. Extradiscal line alike on both wings, heavy, broad. 

 1)lack bi'own. and quite distinct. 



Abdomen black brown except at base and at tip, which is ocherous. and the hinder edges of 

 the dark segments are narrowly edged with ocherous. Legs and under side of abdomen black 

 brown. 



Expanse of fore wings, 9 , T3 mm.; length of one fore wing. 9 - 36 mm.; I)readth of one fore 

 wing. 9 . ly mm.; length of hind wing, 9 , 25 mm. ; breadth of hind wing, 9 , 1" mm. 



In shape this species is near ,1. rnli'ieunda and ^1. stu/nia, the fore wings being the same, but 

 the hind wings are a little more produced toward the apex. In venation it approaches Eacles 

 more than any other .species examined (PI. LVII, fig. 5). 



In coloration this species widely diverges from any of the more northern or Austral and 

 Appalachian forms, showing much darker tints, and thus a ditlerent facies, probaldy the eti'ects 

 of its tropical surroundings. 



GeiH/jvphical disfrihufion. — Jalapa, Mexico (O. T. Barrett); Oaxaca (Boisduval); Oaxaca, 

 Jalapa (Hoge); common at Jalapa (Druce). 



E^CLES HCi'ilinei-. 



{Pb. IX, XLVIII, etf.) 



Certtranipn Kikbv and Spence (in part), Intr. to Ent., Ill, p. 2.51, 255. 1828. 



.Borfe HuEBNER, Yerzeichniss Schniett. , p. 1.53. 1818-1822. 



Ceratommpa Harrls, Cat. Ins. Mas?., .\i)pendix tn Hitchcock's Eep. Geology Mass., p. 592. 1834; Report 



Inj. Ins. Mass., p. 287. 1841. 

 Ceratora/iijta Westwood, edit. Dnirv, III. Exot. Ent., I, ]>. 17. 1837. 

 Doryraiiipa Dincax (in part). Naturalists' Libr., p. 161. 1841. 

 Eacles Walker (in part), Cat. Lep. Br. Mus., VI, p. 1370. 1855. — P.vckard, Proc. Ent. Soc. Phil., Ill, p. 381. 



1864. — (Jrote, List Lep. N. Amer., I, i>. xiii. Sept., 1868; New Check List N. Ainer. Moths, p. 20. May, 



1882. 

 Basilona Boisduvai,, .Annates Soc. Ent. France (4), VIII, p. 317. 1S6S. 

 Ceratommpa {Basilima) Bcrmeister, Descr. phys. Rep. Argentine, Leji. atlas, p. 46. 1879. 



