( 604 ) 



CXLIV. IHOi'DAAIIA. Typns : inscriptuni. 



Plert/oii ?, Harris, in Rillim. Jonni. Sc. Art xxxvi. p. .'iOt! (1839). 



Thyreiis '!, Walker, Lhl Lrp. I,i.s. B. M. viii. p. 100 (18.00). 



De'iilaiiiia Clemens, .hmrii. Ac. X. Sr. Pli/lail. iv. p. 137 (1859) (type : hineripfma). 



Prosfrphiiin, Morris, Cat. Lep. N. Am. p. 18 (18(50). 



Trh'hocohu Hoisdiival, Sprc. Ghi. Up. lUl. i. p. 30l' (187.5) (type : hiwviplnm'). 



Pteroflon, Strecker, l.i/i. Uhnp. lhl. p. IIJ (l.S7r.). 



c?$. Genul process trian<^ular, narrower than in Ampliioi), nearly reaching 

 end of pilifer. Head sunken, with a hirge mesial crest ; eye lashed ; palpus rather 

 small, bnt jjrojecting, rough-scaled. Antenna filiform, long and lieavy in S, 

 narrowed towards liase and apex, gratlnally curved, no distinct hook ; end-segment 

 quite short, not prolonged to a filament, densely scaled aliove, the scales projecting 

 beyond apex of segment. Spines of abdomen elongate, weak, esjiecially those 

 of underside ; anal tuft small, triangular in c?, truncate in ? ; seventh sternite 

 of ? small, without spines, rounded. Merum of midcoxa not carinate or angulate ; 

 tibiae not spinose, rough-scaled, spurs unequal : no comb to midtarsus ; par- 

 onychium with two pairs of lobes, pulvillus j)resent. Ajiex of forewing truncate- 

 sinuate, distal m.wgin sinuate between S(J'' and R', and again between R' and 

 hinder angle, with a small lobe at M^ ; cross-veins of hindwing oblique, D' at 

 least twice the length of D', upper angle of cell obtuse, lower angle acute. 



c?. Tenth segment simple, tergite and sternite elongate, the latter broader 

 and shorter than the former, soraewliat boat-shaped. Clasper broadly sole-shaped, 

 without friction-scales ; harpe small, ending in a slightly curved, slender, somewhat 

 spatnlate process (PI. IL. f. 10). Penis-sheath (PI. LIV. f. 17) with abroad, 

 apically wider left lobe, which is dentate at the edges, and with a sim])le 

 pointed right process. 



?. Eighth tergite short, membranaceous in middle. Vaginal })late (PI. XLI. 

 f. T) feebly chitinised, distal edge more strongly chitinised, apex narrowed : 

 orifice snbapical, large, anterior edge raised, sinuate. 



Larva green, tapering in front, with a pale dorso-lateral line ending at the 

 lioru, which is grannlose.— Food-plant : Atnpelopsis ; Vitis. 



Pupa variegated with pale testaceous on the thoi'ax and wing-cases ; head 

 witli tliree ])rominent tubercles, mesial one pointed ; tongue-case prominently 

 keeled ; thorax and abdomen with dispersed large punctures, which are denser 

 together on the last segment, and the bases of the tergites, apex of segments 

 4 to smooth ventrally ; anal segment with a lateral prominence : cremaster 

 shorter than in Amphion, less gradually tapering, conical part smooth. 



Ilnh. Atlantic district of the Nearctic Region. 



C)ne species. 



546. De'idamia inscriptiim. 



Pterngnn? innn-qHinii Harris, in Sillim., .lomii. Nc. .1/7 xxxvi. p. BOli (1839) (Indiana). 



Thyrem? insrripfiis, Walker, List Lep. lux. B. .1/. viii. p. 100. n. 4 (18.56). 



Detdam'm hmcriptti, Clemens, Joimi. Ac. -V. Nc. Philad. iv. p. 137. n. 14 (1859) (Indiana ; Long I. : 



N. York : Penn.) ; id., in Morris, .S//». Lep. N. Am. p. 159. n. 1 (18G2) ; Grote & Rob., Pror. 



Kill. Sor. Phihnt. V. 1). 151. n. 13 (18r,5) ; Grote, BnU. DiiffuJo So,: N. Sc. i. p. l'O (1874) ; id. 



/.'■. ii. p. 225 (1875) ; Butl., 7V»»«. Znnl. Sr,c. Lnml ix.' p. 535 (1877) : id., P„pili,> i. p. 103 



(1881) (aflinitiesV) ; Pilato, ihhl. ii. p. (iC. (1882) (Dayton, O.) ; Grote, 0«!m/. /;«/, xviii. p. 131. 



n. 29 (1886) (Can., southward) ; Fern., Sphbig. N. Engl. p. 69. n. 33 (1886) ; Grote, Haxok Mothn 



