new Species of ll'ister'idae. 229 



t. XV. fig. 3 e) ; the thorax laterally is densely, not coarsely 

 punctured, with two shallow fovese on either side well 

 behind the anterior border, innermost fovea is in a line behind 

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

 margin, there is a fine marginal stria which ceases beliind the 

 eye and posteriorly is not visible from above on tlie basal 

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

 and anteriorly is bent on eitlier 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 scutellum is small and has a median puncture ; the elytra, 

 strife, outer humeral is faintly seen before the middle, inner 

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

 1—2 dorsal rather deep and complete, 3 broken in the middle 

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

 propygidium and pygidium are coarsely punctate, the first 

 with two posterior impressions; tlie prosternum and meso- 

 sternum are minutely punctured, the second has a short bent 

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

 apical tooth being bifid at the apex. 



The outline of this species agrees with that of PsilosceHs 

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

 to me. 



Hah. Central Argentina. 



Omalodes stn'atipectusy sp. n. 



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

 foveolata ; pronoto lateribus punctato ; elytris striis 1-2 ia- 

 tegris, 3 abbreviata ; pygidio profunde punctato ; prosterno 

 punctato et distincte bistriato. 



L. 9| mill. 



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

 the head distinctly and rather closely punctured, also the 

 clypeus and the labrum, 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 strife, 1-2 complete but 

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

 the propygidium bifoveolate, somewhat sparsely punctate, 

 especially on the disk ; the pygidium very evenly and wholly 

 punctate, punctures very clear and larger than those of the 

 propygidium and fairly closely set ; the prosternum is evenly, 

 not densely nor coarsely punctured, keel clearly bistriate, 

 striae widening out at the coxai but not continuing round the 



