4:22 Trans. Acad. Sci. of St. LouU. 



arranged at each side anteriorly and another at basal two-fifths and 

 lateral fifth, also a few scattered along the lateral and apical margins ; 

 elytra somewhat shorter than the prothorax, generally sparsely and ir- 

 regularly punctured, with the ground sculpture between the punctures 

 consisting of very minute close -set nude punctules; middle coxae very 

 large, closely contiguous. Palaearctic regions *0tMu8 



Body very much smaller in size and f usoid, narrowing anteriorly from the 

 elytra, the head much smaller, the frontal grooves short but strongly 

 and broadly impressed, parallel, only moderately separated and distinct, 

 the ocular grooves of the Xantholini represented by a rounded punc- 

 ture at the upper margin of the eyes; antennae much more slender and 

 relatively longer but with the second and third joints nearly as in Othiut; 

 anterior tarsi less strongly dilated, similarly clothed beneath; labrum 

 similar; integuments smooth and polished, without minute ground 

 sculpture of any kind, the three setigerous discal punctures at each side 

 of the pronotum as in Othius; elytra more developed, being generally 

 much longer and wider than the prothorax, the latter narrower and 

 having the sides parallel and arcuate throughout the length; middle 

 coxae somewhat narrower and not quite so closely contiguous. Palae- 

 arctic regions *0thiellil9 



8 — Maxillary palpi shorter, the third joint relatively more thickened to- 

 ward tip, the fourth joint equal in length to the third, acutely coni- 

 cal; pronotum with two entire dorsal series of about five widely 

 spaced punctures and also a cluster of about three distinct punctures 

 at apical third and lateral fifth; body less stout than in BaptoUnus , 

 moderately convex, the head and pronotum minutely and transversely 

 strigilate, the elytra without minute ground sculpture, the abdomea 

 very obsoletely and indistinctly strigilate; front broadly impressed at 

 the middle and with two very remotely separated parallel grooves; an- 

 tennae rather thick, the second and third joints equal in length; neck 

 one-half as wide as the head; prothorax elongate, with distinct though 

 somewhat rounded angles; elytra well developed, each with a deep 

 gutter along the sutural bead; gular sutures deeply impressed, becom- 

 ing virtually contiguous at base; anterior tarsi broadly dilated and 

 densely spongy-pubescent beneath. Nearctic Pacific coast... Farothius 



Maxillary palpi longer and more slender, the third joint less swollen toward 

 tip and the fourth much longer than the third, gradually and acutely 

 pointed toward tip; pronotum with a single puncture at each side of the 

 centre of the disk and another at apical fifth or sixth and lateral fifth; 

 body stouter, moderately convex, the head and pronotum with exces- 

 sively minute or subobsolete transverse wavy strigilation, feebler and 

 finer as a rule than in Farothius, the elytra similarly without ground 

 sculpture; front similarly impressed, the parallel frontal grooves nearly 

 similar but feebler or obsolescent; antennae longer, relatively mora 

 slender toward base and incrassate toward tip, the second and third 

 joints equal; neck wider, rather more than half as wide as the head; 

 prothorax less elongate as a rule, with more broadly rounded angles; 

 elytra well developed, almost as strongly impressed along the sutural 

 bead; gular sutures similarly strongly impressed but usually rather 



