424 Trans. Acad. Set. of St. Louis. 



above, in the more abbreviated palpi, especially noticeable in 

 the form of the fourth joint, in its narrower form, less 

 rounded angles of the head and pronotum, thicker basal parts 

 of the antennae, narrower neck and, as may be inferred, 

 notably different facies. It is also very restricted in geo- 

 graphical range, being confined to the northern Pacific coast 

 regions and is at present represented by a single rather rare 

 species, which may be defined as follows: — 



Slender, subparallel, shining, black or witli a slight piceous tinge, the pro- 

 thorax nubilously paler at base and the elytra sometimes faintly paler 

 at base; tip of the abdomen rufous; legs pale, the antennae dusky, 

 rufous; head moderate, subquadrate, scarcely as long as wide behind 

 the antennae, the sides subparallel and nearly straight behind the 

 slightly prominent eyes to the unusually narrowly rounded basal 

 angles; antennae slightly longer than the head, very moderately incras- 

 sate distally; eyes moderate, surrounded by a line deep groove 

 throuiihout, the groove slightly dilated at the posterior margin; punc- 

 tures small, impressed and widely scattered; prothorax fully a fourth 

 longer than wide, evidently narrower than the head, the sides nearly 

 straight and feebly, though obviously, converging throughout.; elytra 

 somewhat longer than wide, as long as the prothorax and much wider, 

 scarcely visibly wider than the head, very finely, feebly, sparsely and 

 irregularly punctate; abdomen parallel, distinctly narrower than the 

 elytra, finely, sparsely puuctulate. Length 5.8 mm.; width 0.8 mm. 

 California (Humboldt Co.) californicns Mann. 



This very interesting species has been borne upon our lists 

 under the generic name Othius, but it is really much more 

 closely related to Baptolinus, differing however, not only from 

 that genus but any other type of the subtribe known to me, 

 by the dorsal series of pronotal punctures, which resemble 

 somewhat those of N'udobius, of the Xantholini. The male 

 sexual characters' are feeble, consisting of a narrow, trans- 

 versely rectilinear truncature of the sixth abdominal segment 

 and the possibly more widely dilated anterior tarsi. The 

 first ventral is carinate in basal half and the prosternum is 

 carinate posteriorly. I have before me only a single male 

 example. 



Baptolinus Kr. 



The body in this very widely distributed holarctic genus is 

 stouter and more evenly parallel than in the preceding, with 

 more broadly rounded angles of the head and prothorax, the 

 latter being less elongate and, in all but one instance, bearing 



