n e w Spec ies of 1 1 i s t e r i (.1 ;t' . 229 



t. XV. fig. 3e) ; the tliorax lateniUy is densely, not coarsely 

 punctured, with two shallow foveao on either side well 

 behinil the anterior border, innermost fovea is in a litie behind 

 the eye, the smaller and outer is between it and the lateral 

 margin, there is a fine marginal stria which ceases behin<] the 

 eye and posteriorly is not visible from above on the basal 

 half of the thoracic length, the lateral stria is well-marked 

 and anteriorly is bent on either side behind the eyes and is 

 slightly angulate behind the middle of the neck, the scutellar 

 puncture is minute and surrounded by a shallow depression ; 

 the i^cutellum is small and has a median puncture; the elytra, 

 stria?, outer humeral is taintly seen before the middle, inner 

 is broken in the middle and somewiiat irregular in its course, 

 1-2 dorsal rather deep and complete, '^ broken in the middle 

 and then continued to the apex by a line of punctures; the 

 projiygiilium and pygidium are coarsely punctate, the first 

 witli two posterior impressions; the prosternum and meso- 

 sternum are minutely punctured, the second has a short bent 

 stria on either side ; the anterior tibiaj are 5-dentate, the 

 apical tooth being bifid at the apex. 



The outline of this species agrees with that of Psiloscelis 

 Ilarrisi, Lee, a form not seen in any other species known 

 to me. 



Ilah. Central Argentina. 



Omalodes striatipectus^ sp. n. 



Ovatus, latus, subconvexus, niger, nitidus ; fronte punctata in medio 

 foveolata ; pronoto lateribus punctate ; elytris striis 1-2 iu- 

 tegris, 3 abbreviata ; pygidio profunda punctato ; prosterno 

 punctate et distincte bistriato. 



L. 91 mill. 



Oval, rather broad, somewhat convex, black and shining; 

 the head distinctly and rather closely punctured, also the 

 clypeus and the labruni, stria complete but a little irregular, 

 vertex with a well-defined fovea ; the thorax has a lateral 

 band of punctures, lateral stria rather strong, especially at the 

 anterior angles, and continued behind the head, anterior angles 

 rather pointed; the elytra, dorsal stride, 1-2 complete but 

 punctiform at the apex, 3 extremely fine, basal and dimidiate; 

 the pro))ygidium bifovecdate, somewhat sparsely punctate, 

 especially on the disk ; the pygidium very evenly and wholly 

 punctate, pumctures very clear and larger than those of the 

 propygidium and fairly closely set ; the prosternum is evtMiIy, 

 not densely nor coarsely punctured, keel clearly bistriate, 

 striae widening out at the coxai but not continuing round the 



