ABT. 28 REVISION OP DISONYCHA NORTH OF MEXICO BLAKE 45 



nae short, dark, basal joints paler, third joint a little shorter than 

 fourth or fifth, which are subequal, the fourth slightly longer. 

 Prothorax not twice as broad as long, somewhat convex, narrowed 

 anteriorly with slightly arcuate sides ; finely alutaceous and minutely 

 punctate, entirely pale. Scutellum pale or dark. Elytra oblong 

 oval, a little convex, humeri not prominent and only slight trace of 

 intrahumeral sulcus; surface alutaceous, finely punctate, a sutural 

 and a median vitta on each elytron, the sutural one almost reaching 

 apex, in Florida specimens the vittae very narrow. Body beneath 

 finely pubescent, sometimes entirely pale, often with metasternum 

 in part or whole darkened; outer edge of tibiae usually dark, and 

 tarsi dark. Length, 6.2 to 7.5 mm ; width, 3.4 to 4.5 mm. 



Tyye locality. — Near Dunedin, Fla. 



DistHhution. — Florida (Dunedin, Biscayne, Capron, Fort Myers, 

 Lake Ashby, Lake Worth, Orange County). 



Food plant. — Unknown. 



Remarks. — The species belonging to the discoidea group are very 

 closely related structurally, although there is considerable variation 

 in size and coloring. D. leytolineata was described by Blatchley 

 from pale specimens from Florida in which the vittae are extremely 

 narrov/. Schaefi'er described texana from Texas from small, dark 

 specimens. Both Schaeffer and Blatchley distinguished their species 

 from ahhreviata by color and finer punctation. Aside from the 

 difference in degree of dark coloring, texana is not readily separable 

 from leptolhuata^ and in this paper is treated as a color variety. 



DISONYCHA LEPTOLINEATA var. TEXANA Schaeffer 



Plate 5, Figure 27 



Disonycha texana Schaeffer, Joiirn. New York Ent. Soc, vol. 27, p. 339, 1919 

 (Brownsville, Tex.; type, U.S.N.M. No. 42422). 



Description. — Elytra with median and sutural vittae wider than 

 in typical leptolineata. Aedeagus with lower lip slightly broader 

 and less acutely narrowed. Length, 6 to 7.5 mm; width, 3.5 to 



4.5 mm. 



Type ZocaZi^.— Brownsville, Tex. ; type and one paratype in Na- 

 tional Museum. 



Distribution.— VivgmiQ^ (Norfolk, Lake Drummond) ; North 

 Carohna (Washington); South Carolina (Swansea); Louisiana 

 (Tallulah); Texas (Alice, Beeville, Brownsville, Calvert, College 

 Station, Corpus Christi, CotuUa, Dallas, Denton, Handley, Lex- 

 ington, Mesquite, Mission, Piano, Rosser, Sinton, Wolfe City, Vic- 

 toria) ; Kansas (Douglas County) ; Arizona (Cochise County) ; 

 Mexico. 



