VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 53 



obliquely truncate; scutellum black; elytra rather flattened, not 

 perceptibly punctured, testaceous, very shining, the suture very 

 narrowly and a slightly wider stripe close to the margins black, another 

 much broader band extends from the middle of the base nearly to the 

 apex; below and the legs testaceous, the apex of the posterior tibiae 

 obscure fuscous. 



"Habitat: Venezuela." 



Remarks: I have examined the only specimen of this known, which 

 is in the British Museum, but made no detailed description or drawing 

 of it at the time. The drawing for this paper was made from a 

 photograph sent me by J. Balfour-Browne of the British Museum 

 (Natural History). D. elongata Jacoby is a lustrous yellow brown 

 beetle with very narrow sutural and submarginal vittae and broader 

 median one. Beneath, the body is entirely pale. It compares in 

 size with D. quinquelineata (Latreille) but is narrower and with a 

 wider median elytral dark vitta. 



Disonycha megaspilota, new species 



Figure 41 



Between 8.5 and 9 mm. in length, elongate oblong, prothorax shiny, 

 elytra finely alutaceous; pale yellow; dark antennae; dark labrum, a 

 dark spot on occiput; three large pronotal spots; elytra with a narrow 

 sutural and submarginal vitta, not united at the apex, and a wider 

 median vitta; body beneath and legs except the dark tarsal joints 

 mostly pale. 



Head with interocular space about half its width, smooth over 

 occiput except for a circle of fine punctm'es about the fovea near eye, 

 frontal tubercles distinct, carina short and narrowly produced, lower 

 front short, labrum dark, a broad median spot on occiput. Antennae, 

 except the paler basal joints and a reddish brown terminal joint, dark, 

 moderately long. Prothorax not twice as wide as long, with rounded 

 sides, moderately convex and with a slight depression over scutellum 

 and on sides near the base; surface polished, impunctate, with three 

 large reddish brown spots, the median one rounded anteriorly and 

 tapering towards base. Elytra finely alutaceous and finely punctate, 

 with a faint trace of costa in the median vitta, sutural and submarginal 

 vittae narrow and not joined at apex, median vitta moderately wide, 

 epipleura dark. Body beneath mostly pale, in one of the two speci- 

 mens a faint brownish tinge in middle of the breast, legs pale except 

 for the dark tarsal joints in one specimen, in the other the tibiae 

 darkened towards apex. Length 8.5 to 8.8 mm.; width 4 mm. 



Type: Female, MCZ 29048; paratype, also female, USNM 61823. 



