VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 69 



not much produced. Antennae with three basal jomts pale edged, 

 rest dark. Prothorax barely twice as wide as long, smoothly rounded, 

 without any depression, somewhat shining although faintly alutaceous, 

 finely punctate, pale with three dark spots, the lateral ones wider 

 than long, the median one elongate. Elytra broad, faintly shining, 

 alutaceous and a little more distinctly punctate than prothorax, a com- 

 mon dark sutural vitta rather broad and uniting at apex with a narrow 

 marginal vitta, a very broad median vitta. Body beneath not very 

 shiny but densely covered with fine pubescence, dark except for 

 prosternum and space between middle coxae and spots about edge of 

 abdomen, legs entu-ely dark. Length 6 to 6.8 mm., width 3.4 to 3.8 

 mm. 



Type: In Institute of Ecology and Agricidtural Research, Rio 

 de Janeiro, collected at Nova Teutonia, Santa Catarina, Brazil, by 

 Fritz Plaumann, September 1934. 



Other localities: Paraguay: Sapucai, San Bernardino, K. Fie- 

 brig. Brazil: Cauna and Rio Natal, Santa Catarina, A. Mailer, 

 AMNH. One specimen, in MCZ (Bowditch collection) labeled 

 "C. Amer.," which is probably not correct. 



Remarks: This is closely related to D. copulata Germar, having 

 much the same markings, except that the spots on the prothorax are 

 not so large, the dark elytral vittae are as a rule wider, and the body 

 beneath is darker; also the prothorax is less depressed, with wider 

 anterior angles, the punctation is denser and more distinct on the 

 elytra, and the shape of the aedeagus is slightly different. 



This species had already been described and assigned a name in 

 my manuscript; the identity of my material with Costa Lima's 

 species is based on a photograph of a drawing that he has sent me. 



Disonyclia septemmaculata, new species 



Figure 69 



From 5.5 to 6 mm. in length, oblong oval, mirror smooth; pale 

 yellow; head orange with a dark occipital spot and dark labrum; pro- 

 thorax short and broad with seven small dark spots; elytra with broad 

 sutural, median and narrow marginal black vittae, the sutural and 

 marginal uniting at apex; body beneath pale, femora and tibiae mostly 

 dark with pale streaks, tarsi dark; antennae dark with paler basal and 

 apical jomts. 



Head with interocular space half width of head, smooth, with a 

 fovea or circle of punctures on each side near eye, tubercles not dis- 

 tinctly marked, antenna! sockets closely placed, with a narrow carina 

 not much produced but extending do\vn lower front, occiput orange, 

 with a median brown spot, lower front narrow and pale, labrum dark. 



