140 MEMOIRS ON THE COLEOPTERA 



straight in more than basal half; apex deeply sinuate, with the angles 

 advanced and somewhat narrowly rounded, about as wide as the 

 base, which is broadly sinuate medially, the angles very obtuse, not 

 sharply marked and generally somewhat blunt; surface depressed, 

 with very finely reflexed margin, the foveae broad, extremely feeble 

 and with suffused fine and rather close punctuation, which does not 

 extend to the sides, the stria short and fine; elytra two-fifths longer 

 than wide, parallel, with broadly arcuate sides and obtuse apex, a 

 fifth to fourth wider than the prothorax, rather depressed, the sinus 

 short and very distinct; surface throughout with a suggestion of 

 obsolete sparse punctulation, the punctures however not visible 

 even apically; striae fine, the scutellar rather long, the series feeble, 

 of about five minute punctures each; hind tarsi very slender, nearly 

 as long as the tibiae (cf), evidently shorter (9). Length (cf 9 ) 

 5.3-5.4 mm.; width 2.2-2.25 mm- Florida (Lake Worth), Kinzel. 



delumbis n. sp. 



Form elongate-oblong, black, shining; prothorax not much wider than 

 the head, shorter than wide, narrowed posteriorly, the hind angles 

 obtuse, not at all rounded, the lateral margins piceous; foveae very 

 vague, punctulate; elytra iridescent, slightly wider than the pro- 

 thorax, the striae deep, coarser at apex, the second with 68 small 

 punctures, the fifth with 3-4, the punctures not very distinct; 

 antennae, palpi and legs testaceous. Length 6.5 mm. Louisiana. 

 " Allied to tricolor but smaller and narrower, with the hind angles 

 o,f the prothorax not at all rounded and the base each side strongly 

 punctulate." subtinctus Lee. 



The descriptions of discoderoides and subtinctus are drawn from 

 the originals; the latter is evidently allied to delumbis but differs 

 in several characters besides size, as may be noted by comparing 

 the descriptions. The following species does not seem to be repre- 

 sented in my collection: 



H. iripennis Say (Har pains) Body black, dark piceous beneath, the 

 antennae, labrum, mouth and legs rufo-testaceous, the latter paler; 

 prothorax somewhat wider than long, widest in the middle, hardly 

 narrower at base than at tip, the lateral edge piceous, almost regularly 

 arcuated, the angles obtusely rounded, the basal edge rectilinear; dorsal 

 and basal lines obsolete; base with numerous slight punctures; elytra 

 blackish, with blue and iridescent reflections. Length 6.2 mm. Locality 

 not given. 



It is said by LeConte that Selenophorus varicolor Lee., is identical; 

 it is described as follows : 



Oblong, black, very shining; head smooth, the impressions almost 

 wanting, the mouth, antennae, palpi and legs rufo-testaceous; prothorax 

 half wider than long, subquadrate, feebly emarginate at apex, the sides 

 strongly rounded, feebly converging posteriorly, the hind angles obtuse, 



