ClCINDELID^E AND CARABID^ 77 



narrowed at base, differing decidedly in having the lateral groove 

 broader and evanescent basally and the very obtuse basal angles 

 much less sharp, in fact narrowly rounded; elytra with the longi- 

 tudinal lines separating the geminate series much more convex and 

 rather conspicuous, the two lateral ridges stronger than the others; 

 they are together about a fifth longer than wide; tarsi as long as the 

 tibiae. Length 22.0-25.5 mm.; width 8.7-9.9 rnm. Florida (Lake 

 Worth and Key West). Five examples exhibiting no decided 

 variability, [rugosits Lee. an individual aberration having the basal 



impressions of the prothorax rugose] sublaevis Beauv. 



A Similar but with the elytra, as well as pronotum, highly polished, 

 the former with more rounded sides and rather less convex surface 

 and with the longitudinal convex lines very feeble, the two lateral 

 ridges also feeble but more evident than the others, the punctures 

 wholly obsolete; head, labrum and prothorax throughout nearly 

 as in brevitarsis, except that the mandibles are strongly strigose 

 throughout their extent and not on the inner part only as is the 

 case in the two preceding forms; hind tarsi as long as the tibiae. 

 Length 24.0 mm.; width 9.2 mm. Two similar examples, marked 



" R. B." assimilis Lee. 



Form more subcylindric, deep black, with narrow violaceous margins, 

 smooth and strongly shining throughout, rather more convex than 

 any of the preceding; mandibles, labrum and prothorax nearly as in 

 brevitarsis, the lateral lobes of the labrum still more pointed and 

 dentiform, the median lobe similarly advanced and strongly rounded, 

 the four setigerous foveae distinct but small; mandibles with slender 

 apices as in sublavis and similarly only partially strigose; elytra 

 slightly longer than wide, having irregularly and broadly subgemi- 

 nate series of very small or minute, sometimes completely obsolete, 

 punctures, but without even evident traces of longitudinal lines of 

 greater convexity, the two lateral ridges being sometimes just 

 visible though also generally wholly obsolete; hind tarsi evidently 

 shorter than the tibiae but not approaching the brevity seen in 

 brevitarsis. Length 22.5-26.5 mm.; width 9.0-10.5 mm. North 

 Carolina (Southern Pines), Manee. Four homogeneous examples. 



oblongus n. sp. 



5 Body very large and convex, the humeral carinae very short. Form 

 extremely stout, deep black and highly polished throughout, the 

 lateral margins without trace of color; head very large, more than 

 three-fourths as wide as the prothorax, the labrum short, transverse, 

 very coarsely and deeply, longitudinally plicate throughout, the 

 median part of the apex extremely broadly, feebly and evenly ar- 

 cuate between the slightly more advanced and narrow, rounded lateral 

 lobes, the two lateral punctures very small, the two medial minute at 

 very near the apical margin; mandibles coarsely plicato-strigose 

 but medially only; prothorax very transverse, not quite twice as 

 wide as long, the sides rounded, becoming strongly convergent behind 

 the middle and parallel for a short distance before the basal angles, 

 which are right and sharp, the marginal groove continuing to the base 

 and narrowly along the latter to outer fourth, the stria distinct, the 



