Platynin.e 87 



deep though abrupt and with the minute punctulation so feeble as 

 to be scarcely traceable; intervals perfectly flat, the third with 

 four punctures; met-episterna similarly long; anterior male tarsi 

 slender, only just visibly dilated. Length (cf) 7-0 mm.; \vidth 

 2.35 mm. Texas (Galveston). A single example, taken by the 



^ritei- houstoni n. sp. 



9 — Head short, not longer than wide. Body rather small, only moder- 

 ately convex, black, shining, the anterior parts very feebly aeneo- 

 viridate, the elytra rather bright subcupreous; legs pale, tlfe knees 

 and extreme tips of the tarsal joints feebly infumate; head three- 

 fourths as wide as the prothorax, with rather large and prominent 

 eyes, the impressions parallel; palpi slender, piceous; antennae 

 very slender, black, the first three joints piceous, with the third 

 shorter than the fourth, filiform, two-thirds as long as. the body; 

 prothorax a fourth wider than long, widest near the middle, the 

 sides subevenly and rather strongly arcuate and finely refiexed, 

 more so at base, forming part of the large, deep and finely punctulate 

 foves, which are scarcely traceable anteriorly; basal angles very 

 obtuse and rounded, the base fully as wide as the feebly sinuate 

 apex; surface with evident transverse rugul^e, the impressions fine 

 and feeble, the fine stria subentire; elytra oblong, broadly rounded 

 from slightly behind the middle, the sinus scarcely more than 

 straight; sides rapidly rounded at base; striae fine but deep, grooved, 

 the punctures smaller than in the two following and obsolete in 

 about apical half, the scutellar deep, rather long; intervals virtually 

 flat; met-episterna nearly twice as long as wide; anterior male 

 tarsi feebly though evidently dilated. Length (cf) 6.6 mm.; 



width 2.4 mm. Mississippi (Vicksburg) breviceps n. sp. 



Head distinctly longer than wide, subtriangular 10 



JO — Upper surface more convex, the size larger, the striae rather more 

 impressed; sides of the elytra more arcuate; very shining, black, 

 with very feeble viridate lustre — scarcely observable on the elytra; 

 legs colored somewhat as in the preceding; head rather more than 

 three-fourths as wide as the prothorax, with rather large and moder- 

 ately prominent eyes, the impressions outwardly oblique behind; 

 palpi piceous, antennae colored as in the preceding, very slender, 

 three-fifths as long as the body, the third joint evidently shorter 

 than the fourth; prothorax a fifth wider than long, in the outline, 

 margins and foveae almost as in breviceps, but with the anterior 

 impression subobsolete, the stria not extending to the apex, the 

 base relatively narrower, not quite as wide as the apex, the foveae 

 more punctate and traceable to the middle of the length; elytra 

 oblong, rather more obtusely rounded at apex, with feeble though 

 more evident sinus and rather more arcuate sides, which are simi- 

 larly finely reflexed and rapidly rounded at base; striae well im- 

 pressed, rather strongly but not very closely punctate, the punctures 

 becoming obsolete in about apical third; fifth stria feebly indented 

 near apical fifth; intervals rather convex, less so posteriad; met- 



