232 MEMOIRS ON THE COLEOPTERA 



are on the median line of the male abdomen, near the base, two very 

 small rounded and densely pubescent spots, analogous to that of 

 Trichocellus but still smaller; it will be noted that they are arranged 

 longitudinally on the median line and not transversely in pairs, as 

 is the case with the somewhat analogous spots of Selenophorus 

 riparius and certain allied forms. In Trichocellus these spots 

 are usually coalescent, forming a single elongate spot. The species 

 of Glycerins are few in number and may be recognized as follows: 



Pronotum plurisetose along the lateral edges 2 



Pronotum with a single marginal seta situated far before the middle; body 

 smaller in size and more slender as a rule 3 



2 Body stouter in form, paler piceo-rufous in color, the elytra slightly 

 clouded with blackish; surface shining, glabrous; head about three- 

 fifths as wide as the prothorax, impunctate, the eyes well developed 

 and very prominent, the oblique foveae rather fine; antennae ex- 

 tending slightly behind the prothorax, the first three joints glabrous 

 though with the usual setae; prothorax two-fifths wider than long, 

 the sides broadly rounded, feebly converging and broadly, very 

 slightly sinuate posteriorly; base transverse medially, arcuately and 

 anteriorly oblique at the sides to the somewhat obtuse but distinct 

 angles, the apices of which are but little blunted; apex truncate, 

 narrower than the base; surface smooth and polished, with a very 

 fine stria, the foveae small, subelongate, feebly impressed and with a 

 few minute punctures; elytra fully one-half longer than wide, a third 

 to fourth wider than the prothorax, parallel, with broadly and evenly 

 arcuate sides and gradually ogival apex, -without vestige of sinus; 

 marginal line of foveae widely interrupted medially; legs rather 

 slender, pale testaceous; under surface of the hind body nearly black, 

 the epipleura pale. Length (cf 9 ) 5.2-6.2 mm.; width 2.1-2.5 mm. 

 California (Siskiyou to San Diego). Abundant. \_Acupalpus nitidus 

 Dej. subsequently placed in Bradycelhis] nitidus Dej. 



Body somewhat as in the preceding but not so large and of much more 

 slender form and darker general coloration, frequently nearly black 

 throughout, the legs and epipleura always pale; head relatively 

 somewhat larger but otherwise nearly similar, the antennae dark 

 piceous-brown, paler basally, relatively longer than in nitidus; 

 prothorax quite different, about a third wider than long, the sides 

 strongly rounded anteriorly, thence rather strongly converging and 

 broadly, strongly sinuate to the basal angles, which are right and 

 very sharply marked; base nearly similar but barely visibly wider 

 than the truncate apex; surface nearly similar but with the foveae 

 slightly narrower and more elongate; elytra nearly as in nitidus but 

 somewhat narrower, sometimes perfectly smooth or having feebly 

 impressed series of feeble punctulation taking the place of the regular 

 striae a^ in nitidus; not only is the fovea of the scutellar stria well 

 developed, but there is a small puncture at the basal end of the first 

 stria, which remains distinct even in those occasional individuals 



