542 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



ventrad toward apex; apex almost spinelike, acute, heavily sclerotized, 

 directed somewhat ventrad. 



Vesica large, membranous, armed with pair of large cornuti: cor- 

 nutus nearest base of vesica large, linear, heavily sclerotized, acute, 

 with base expanded and fusing with large hregular mass of partially 

 sclerotized tissue embedded in vesica; cornutus nearest apex of vesica 

 similar but only one-third to two-thirds as large, embedded in larger 

 and more elongate area of partial sclerotization to completely lacking 

 this irregular basal area. 



Type.^ — Holotype cf (type no. 61435) in the U.S. National Museum, 



Paratypes(16 cfcf). — American Museum of Natural History 

 (4 6^6^); Cornell University (7 d^cf); Illinois State Natural History 

 Survey (3 &&); U.S. National Museum (2 cf cf). 



Type locality,— Lake Alfred, Polk Co., Fla. (July 13, 1928, at 

 light, L. J. Bottimer), 



Distribution, — Kansas and Texas eastward to Florida. 



Specimens examined. — 18 (17 cf cf, 1 9), from 6 localities: 



Florida: Lake Alfred, Polk Co., 2 cf c? (July 13, 1928, at light, L. J. Bottimer). 

 Kansas: Onaga, Pottawatomie Co., 2 cf cf (June 17 and 22, 1901, at light, 

 F. F. Crevecoeur), cf (July 13, 1901, Crevecoeur), cf (no date, Crevecoeur). 

 Texas: Corpus Christi, Nueces Co., cf (May 14, 1943, at light, W. M. Gordon), 

 cf (Sept. 2, 1943, at hght, Gordon), 3 cf cf , ? (Sept. 25-Oct. 15, 1943, Gordon); 

 Kerrville, Kerr Co., cf (May 1906, F. C. Pratt); Sanderson, Terrell Co., cf 

 (May 16, 1918, J. Ch. Bradley); Uvalde, Uvalde Co., cf (May 19, 1918, J. Ch. 

 Bradley) ; locality and date unknown, 3 cf cf ("Tex.," Andreas Bolter collection). 



Remarks. — One of the smallest acrolophids occurring in America 

 north of Mexico, bicornutus should be found throughout the Gulf 

 States. In addition, it probably ranges southward and westward 

 into Mexico. The only available 9 specimen, received from Cornell 

 University, has not been positively associated with the cf cf of this 

 species. 



A. bicornutus is closely related to simulaius and acornus, with which 

 it forms the species group characterized in the key and in the foregoing 

 remarks on acornvs. The members are distinguished from one 

 another, as well as from all other acrolophids, on the basis of their 

 harpes and aedeagi. The latter organ is especially valuable for the 

 separation of these three otherwise similar species. The name 

 bicornutus refers to the two characteristic cornuti in the vesica of the 

 aedeagus of this species. 



8. Acrolophus Jilicicornis (Walsingham) 



Figures 49-53 



Felderia jilicicornis Walsingham, 1887, Trans. Ent. Soc. London, p. 167, pi. 8, 

 figs. 22, 22a, June. — Smith, 1891, List Lep. Bor. Amer., p. 95, no. 5064. — Dyar, 

 1903, List North Amer. Lep., p. 579, no. 6599. 



