A REVISION OF THE DELTOID MoTIIS SMITH. Ill 



iniD'eiu of ])iiin;uies, which is incurved before and makes itioniiiiciit 

 the hind angle. 



From BodioIocIki the genus dilTors in the form of the itrimnrics and 

 in the proportionately broad seconchuies. It is thus intermediate in 

 many characters between Bomoloclia and Ilypena, while it possesses 

 combinations ])eculiar to itself and suflicient to authorize it as valid. 



Plathypena scabra, Fabriciiis. 



1794. Fabririiis, Entoniologia Systematica, Siip))!., IV, lis, Ihjhlnn. 



1854. Gueiioe, Species General, Deltoides, 10, Hupcna. 



1859. Walker, Cat. Brit. Mus., Heterocera, X.VI, S4, I'njpeua. 



1872. Grote, Trans. Am. Entomolc)<j,ioal Soc., IV, 102, Ilmxtia. 



1873. Lintner, Canadian Entomologist, V, 81, Iljipcna. 

 1873. Grote, Bull. Bnti'. Soc. Nat. Sci., I, 38, Plathypena. 

 1880. Riley, American Entomologist, III, 8, Ifiipcria. 



1880. Coiinillett, Canadian Entomologist, XII, 43, larva. 



1881. Cofiuillett, Canadian Entomologist, XIII, i;:7, larva. 

 erectalis, (iueuee. 



1854. Guenee, Species General, Deltoides, 40, Hiipeua. 

 1859. Walker, Cat. Brit. Mus.. Heterocera, 35, / an var. pr. 



1872. Grote, Trans. Am. Entomological Soc., IV, 102, Hijpena. 



1873. Lintner, Canadian Entomologist, Y, 81, =^ scabra. 

 palpaJis, Haworth. 



1812. Haworth, Lepidoptera Britannica, 301, Cramhnn. 



1829. Stephens, Illustrations British Entomology, Haust., IV, 12, Hupena. 



1854. Gnen(3e, Species General, Deltoides, 40, pr. syn. 



1859, Walker, Cat. Brit. Mus., Heterocera, XVI, 34, pr. syn. 



crassafiis, Haworth. 

 1812. Haworth, Lepidoptera Britannica, 336, Cramhi(s. 

 1854. Guenee, Species General, Deltoides, 40, ! = H. ererlalis. 

 1859. Walker, Cat. 15rit. Mus., Heterocera, XVI, 35, =H. erevlalis. 



ohesaUs, Stephens. 

 1829. Stephens, Illustrations British Entomology, Ilaust., IV, 11, Ihjpina. 

 1859. Walker, Cat. Brit. Mus., Heterocera, Wl, 35, = treclnlh. 



suhnifalis, Grote. 

 1872. Grote, Trans. Am. Entomoligical Soc, IV, 102, var. ercrtali.s. 

 1893. Smith, Bull. U. S. Nat. Mus., 44, 395, pr. syn. 



Ground color a dark purplish or smoky brown. Head and thorax 

 concolorous. Abdomen more smoky, like the secondaries. Primaries 

 dusky to the transverse i)osterior line, then with bluish powderings, 

 which scarcely relieve the somber tint in the male, but are quite con- 

 trasting in the female. In the latter sex the inferior half of the median 

 space olten becomes shaded with yellowish red-brown, sometimes quite 

 coutrastingly. Transverse anterior line red-brown, preceded by pale in 

 the best marked specimens, outwardly bent, with three long outward 

 angulations, rarely complete, and in the male quite frequently entirely 

 obsolete. Transverse posterior line black or brown, outwardly bent over 

 the cell and almost rigid beneath. The line is marked through the lower 

 part of its course by elevated scales, which are most prominent on the 

 inner margin. Subterminal liiu- interi-upted, pale, i)receded by black 

 spots, rather evenly bisiuuate, often quite contrasting in the female, and 

 ^s inconspicuous in the male. A browii teripinal line, whicU is rarely 



