286 MEMOIRS ON THE COLEOPTERA 



Fourth discal stria of the elytra generally wholly wanting, except in 

 disintegrated form posteriorly, sometimes barely traceable almost 

 to the base in feeble remote and barely discoverable punctulation; 

 sutural stria short, extending brokenly from about the middle not 

 quite to the apex; humeral stria traceable apically as an unimpressed 

 series of very small feeble punctures, the subhumeral wanting, the 

 oblique humeral long and very fine though distinct; inflexed sides 

 bistriate; prosternal lobe finely punctate, not beaded at apex; 

 marginal mesosternal stria broadly interrupted; body very broadly 

 rounded and polished; propygidium with evenly distributed and 

 rather small sparse punctures, becoming smaller medially, the 

 pygidium with minute and remote punctulation; interspaces on 

 both polished" and without distinct punctulation. Length 5.6-6.5 

 mm.; width 4.4-5.2 mm. Alabama (Mobile) and Louisiana. Not 



uncommon nitens n. sp. 



Fourth discal stria distinct, deep and continuous for a shorter or longer 

 distance from near the base to near the middle, rarely continued 



nearly to the apex by a more broken stria 2 



2 Sutural stria short, extending forward to barely beyond the middle, 

 ending well before the apex. Body almost circularly rounded, 

 convex, very shining, the pygidia polished and without interstitial 

 punctulation; humeral striae as in the preceding, the humeral apical, 

 the fine remote punctulation composing it barely traceable; inflexed 

 sides bistriate; prosternal lobe punctulate, the lateral broad flat 

 margin gradually narrowing to the middle of the apex; marginal 

 stria of the mesosternum broadly interrupted; propygidium with 

 subeven, sparse, moderate punctures throughout, not becoming 

 materially smaller medially; pygidium very convex, with fine and 

 sparse, even and distinct punctures throughout. Length 6.0 mm.; 



width 4.8 mm. Texas (Austin) rotundus n. sp. 



A Similar to rotundus in general features but less broadly rounded 

 and with relatively less abbreviated prothorax, differing especially 

 in having the fourth discal stria subentire, extending as a deeply 

 incised line from basal fifth or sixth to the posterior part of the 

 elytra, where it becomes somewhat disintegrated or irregular, 

 the sutural stria also longer, extending deeply from near the 

 apical margin to basal third. Length 6.0 mm.; width 4.5 mm. 



Texas (the locality unrecorded) subinteger n. subsp. 



Sutural stria long, extending from basal fourth to sixth not quite to the 

 apex; marginal stria of the mesosternum less widely interrupted 



than in any of the preceding species 3 



3 Propygidium with the punctures coarse and sparse, gradually be- 

 coming fine posteriorly throughout the width; body larger in size. 

 Broadly rounded, very smooth and shining; three discal striae rather 

 fine, smooth, all abbreviated slightly behind the basal margin, the 

 fourth a short incised line from basal eighth to two-fifths, with a 

 continuation to the apex by remote, extremely minute, feeble punc- 

 tulation, only discoverable by oblique illumination, the sutural 

 extending from basal fourth or fifth nearly to the apex; posterior 

 humeral and the rather short submedial subhumeral striae barely 



