AMERICAN LKPIDOPTERA. Zi) I 



37. AnteniiiK of % serrate 38. 



Antenna' of % not serrate 3it. 



38. Antennie of %, with fa.scicles of liairs on each segment- .37. Gy|»!«»OohiMm. 

 Antennje of % ciliate 2U. KiH-lioriii. 



39. All winjrs scalloped on outer niarfrins :{;{. TripliOMH. 



All wings even, or hind wings only wavj-. 4(1. 



40. Antenna; of % flattened .... 41. 



Antennse of % not flattened 1"'. 



41. Thorax tufted posteriorly 32. Ilydrioiiifiia. 



Thorax not tufted posteriorly 34. i'<Kii<»CHl|»e. 



42. Antenna! of % with fascicles of hairs on each segment. 



30. l*er<*iio|>tilota. 

 AntenniP of % ciliate 31. 3Ic!>iol(Mi('«i. 



1. l».iL,K.\<;KITA Riley. 

 Trans. Acad. Sci. St. Louis, iii, 273. 187"). 



Type verudtd Harr. 



Tongue wanting; palpi very sliort ; clypeus very broad, untufted, 

 scaled ; antenna} of % with s^egments swollen, obtusely or bluntly 

 dentate, with a fascicle of hairs on each protuberance ; those of 9 

 ciliate filiform; thorax of % with low po.sterior tuft, 9 untufted. 

 Abdomen untufted, in both sexes with segments armetl with two 

 rows of spines turned backward, somewhat curved. In 9 thorax 

 and abdomen enlarged, scarcely se})arated, somewhat vermiform ; fore 

 tibi;e unarmed, hind tibiie with two pairs of spurs; fore wings of % 

 12 veins, vein 1 with long furcation at base, discal cell long, (i widely 

 separate from 7, 10 and 11 from cell, accessory cell large; hind 

 wings 8 veins, 3 widely .separate from 4, 5 much nearer 4 than mid- 

 dle of cell being in this respect quite noctuiform, 6 and 7 separate, 

 8 anastomosing with cell to beyond middle : 9 wingless; larva with 

 10 leg.-. 



The genus is remarkable for the spinulation of the abdomen in 

 which resj)ect it agrees with only one or two genera in the Ennomimv. 

 It is closely allied to Alxojtliiln Iliib. 

 Species. — P. vmidin Harr. 



± AI.KOFIIII.A Iliih. 

 Verz. 320, 1818. 



Type sesadana Schif. 

 Anisojiteri/x Stei)li., Cat. 116, 1829, type wxcidarin Schif. 

 Palpi very short, slender; tongue wanting; front l)rii:i(l, smootli ; 

 antennae subdentate, with a fascicle of hairs on suminii (if cacli den- 

 tation ; thorax and abdomen untufted, in 9 closely joined somewhat 



TKANS. AM. ENT. SOC. XXIII. (;J3) JULY, 1896. 



