VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 11 



sides of abdomen pale, the femora either pale or piceous, tibiae and 

 tarsi dark. Length 6.5 to 7 mm.; width 2.5 to 2.7 mm. 



Type: USNM 49223, from Milford, Delaware. 



Other localities: United States: Maine to British Columbia and 

 south to Texas. Mexico: Tepic. 



Remarks: Although the vittae of the single specimen from Mexico 

 examined are not quite so dark as is usual in specimens from the 

 United States, it is possible that this specimen is immature and not 

 fully colored. Since D. procera occurs in Texas it undoubtedly ranges 

 southward into Mexico and it may occur even farther south. It is 

 one of the group with costate elytra that feeds on Polygonum. 



Disonycha reclicollis Jacoby 



Figure 5 



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

 pt. 1, p. 313, 1884. 



Between 6 and 8 mm. in length, narrowly oblong, somewhat shiny, 

 the elytra faintly alutaceous; pale yellow brown; a dark occipital band 

 behind the eyes; a somewhat rectangular unspotted prothorax; the 

 elytra with a narrow sutural vitta connecting feebly at apex with a 

 narrow submarginal vitta, median vitta not very wide, and in female 

 especially having a costa down the middle ; body beneath with breast 

 and part of abdomen usually dark, femora pale, tibiae at apex, 

 sometimes entirely, dark, tarsi dark. 



Head with interocular space more than half its width, smoothly 

 rounded over occiput except for the fovea near eye, impunctate, 

 frontal tubercles not well marked, often a depression between and 

 above them, interantennal area flat and rather wide, not carinate, 

 pale yellow, with dark mouthparts and a dark occipital band running 

 across to behind the eyes. Antennae long, usually with the three 

 basal joints paler than rest. Prothorax not twice as wide as long, 

 with slightly curved sides, somewhat rectangular in shape, not very 

 convex, feebly depressed over scutellum and on sides near base, shin- 

 ing, impunctate, immaculate. Elytra elongate and not very wide, 

 with a costa down the median vitta in the female, less marked in male, 

 finely alutaceous and finely punctate; pale yellow with a narrow dark 

 sutural vitta uniting feebly or sometimes not at all with a very narrow 

 submarginal vitta; median vitta not very wide. Epipleura pale. 

 Body beneath with the breast and usually basal segments of abdomen 

 dark, sometimes all but last segment dark. Femora pale, tibiae vary- 

 ing from being entirely dark to being dark only at apex, tarsi dark. 

 Length 5.7 to 8 mm., width 2.5 to 3.5 mm. 



