A KEVISrON OF THE DELTOID MOTHS .S^rITlI. 81 



111 the female the apex is marked and the outer mai<iiii is distinctly 

 ])ioduced ov aiigiilated at its middle, slightly exeavated between that 

 point and the apex, and quite oblique to the hind angle. In the male 

 the apex is obtuse and the wing is eleft from the middle of tlie margin 

 inwardly nearly to the transverse posterior line, eaeli eori.er (d" each 

 lobe thus formed rounded. lu venation the male is just enough mod- 

 itied to accommodate the modification of the wing, and the origin of all 

 veins is as in tlie female. This is out of the usual course, in the absence 

 of the accessory cell, and in the fact that vein 10 arises out of the sub- 

 costal before the end. instead of from the same ])oint with 7 to 9, which 

 are on one stalk. With both sexes at hand the genus is recognizable 

 at a glance. With the female only there is a decided resemV)lance to 

 Heterogramnia, but the wings are narrow, quite difCereiit in color, and 

 the venation is decisive, if that be referred to. This is the only one of 

 our genera in which the wings are lobed or cleft in the male, and we 

 have only a single species, which is hence recognized with the genus. 

 It is interesting to note that the tibial i»rocess has become much 

 reduced here, tlnmgh the tibia itself is Aery much abbreviated. I 

 have seen a second allied species from the West Indies, in which the 

 palpi are more strongly recurved and which have a tuft or fringing of 

 scales on the costa. This is the typical Tortrirodcs of (ruenee, and not 

 congeneric with our more northern form, 



Gabeiasa anibigualis, Walker. 



18(ir). Walker, Cat. lirit. Miis., Hctcroceia, XXXIV, 1198, Odberaisa, 



J bifidaUn, Groto. 

 1872. Grote, Trans. Am. Entomologit'al Soc, IV, 105, Tortricoden, 

 1878. Grotf, I'.ull I'. S. Geol. Siirv., VI, .")(i4, Eulintneria, 

 18!)3. Smith, Bull. 44, U. S. Nat. Mus., SO."), pr. syn. 



9 hidiriaaHs, Grote. 



1872. Grote, Trans. Am. Eutomological Soc, IV, lOU, Tortricodes. 



1873. Grote, Trans. Am. Entomological Soc, IV, 308, Uehrogramma. 

 1878. Lintner, Entomological Contributions, I\', 110, 9 hijidalit. 



Ground color a somewhat pale reddish-brown. Head ami thorax con- 

 colorous; abdomen with a luteoiis admixture, the edges of the seg- 

 ments narrowly pale ringed. Primaries with the markings richer, 

 deeper brown, the basal space (clearly and evenly tinted, but all beyond 

 more or less smoky. Basal line evident in some si)ecimens. Trans- 

 verse anterior line upright or a little inwardly obli(iue from costa to 

 hind margin, broad, brown, outwardly diffuse, forming the most prom- 

 inent ornamental feature of the wing. Transverse jioslerior line 

 slender, rivulous, and irregularly denticulate and sinuate. A usually 

 distinct, rather broader median line, which is more even, but in general 

 course very nearly parallel to the transverse posterior line. Subtermi- 

 nal line pale, preceded by a darker shade, becoming obsoleti' toward the 

 inner margin, outwardly angulated below the apex and again at the 

 middle of its course. An oblique, somewhat undetined brown apical 

 7802 — No, 48 



