VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 27 



Disonyclia leptolineata var. texana Schaeffer 



Figure 16 



Disonycha abbreviata var. leptolineata Blatchley, Canadian Ent., vol. 49, p. 143, 



1917 (Dunedin, Florida, cotype in USNM). 

 Disonycha texana Schaefifer, Journ. New York Ent. Soc, vol. 27, p. 339, 1919 



(Brownsville, Texas, type in USNM). 

 Disonycha leptolineata var. texana Blake, Proc. U. S. Nat. Mus., vol. 82, art. 28, 



p. 45, 1933. 



From 6.5 to 8 mm. in length, elongate oblong oval, smooth, shining, 

 faintly alutaceous, impunctate; pale yellow; the head and pronotum 

 without dark spotting; elytra with sutural and median vittae; body 

 beneath pale with the breast often dark, femora pale, tibiae with 

 dark streak, tarsi dark. 



Head with interociilar space more than half its width, smooth, 

 impunctate except for the large fovea near eye, tubercles not promi- 

 nent, space between antennal sockets wide and rounded, head usually 

 entirely pale except for a deepening in the color of mouthparts. 

 Antennae with the three basal joints pale, the rest dark. Prothorax 

 about twice as wide as long, not very convex, slightly depressed over 

 scutellum, faintly alutaceous, impunctate and without markings. 

 Elytra also rather flat, faintly alutaceous, pale with sutural and median 

 vittae. Epipleura pale. Body beneath usually pale with the breast 

 sometimes dark, femora pale, tibiae [with' a dark streak, tarsi dark. 

 Length 6.7 to 8 mm.; width 4 mm. 



Type and paratype: USNM 42422, from Brownsville, Texas. 



Other localities: United States: From southern Virginia to 

 Texas and west to Arizona. Mexico: Volcan de Colima, Jalisco, L. 

 Conrad; Izamal, Yucatdn, Townsend; Tehuantepec, Oaxaca, F. Knab; 

 Puente de Ixtla, Morelos, Wickham; Sierra de Durango; also on shasta 

 daisy, lettuce, tomato, peppers, turnips, and other vegetables from 

 Mexico, intercepted at the border. Guatemala: Antigua, E. Melhus; 

 El Quiche. 



Remarks: This is a more heavily marked species than D. militaris 

 Jacoby, with wider vittae, and apparently more northern in range. 

 It is very difficult to find any real structural differences between the 

 members of this group which extend from Pennsylvania to Peru. 



Disonycha militaris Jacoby 



Figure 4 



Disonycha militaris Jacoby, Biologia Centrali-Americana, Coleoptera, vol. 6, 

 pt. 1, p. 314, 1884. 



From 6 to 8.5 mm. in length, elongate oblong oval, faintly shining, 

 very finely alutaceous, pale yellow; dark antennae, a dark streak on 



