768 Coleopterological Notices, VI. 



tinguished by its coarse elj^tral punctures, hispid appearance and 

 coloration. It is represented by four specimens. 



]V. constrictiis. — Moderately stout, scarcely shining, pale ochreo-testa- 

 ceous throughout, the head frequently, the ahdomen seldom, darker; elytra 

 fasciate. Head equal in width to the prothorax, narrower in the female, mi- 

 nutely punctate, reticulate, densely pubescent and dull; eyes large, longer 

 than the tempora; antennte somewhat slender, moderate in length. Prothorax 

 subglobular, slightly wider than long, the sides oblique and sinuate behind > 

 disk rather coarsely, closely punctate, densely and coarsely pubescent; horn 

 well developed, similar in the sexes, somewhat coarsely and deeply crenulate, 

 broadly rounded and entire for a short distance at apex, widely dilated, 

 strongly constricted at base, the crest broad, abruptly elevated, broadly rounded 

 at apex and strongly defined throughout the sides and apex by an elevated 

 black and entire ridge. Elytra a little less than twice as long as wide, dis- 

 tinctly dilated at apical third and three-fourths wider than the prothorax, 

 evenly rounded at apex, a little more broadly so in the male, the humeral im- 

 pression very feeble; disk densely and rather coarsely punctate, densely 

 clothed with coarse yellowish pubescence, the erect sefee somewhat long, coarse, 

 numerous and conspicuous. Under surface densely and rather coarsely pubes- 

 cent. Length 2.5-3.5 mm. ; width 0.95-1.2 mm. 



California (coast regions). 



The sexual differences at the posterior extremit}' of the body 

 are almost completely undeveloped, and exist only in the slightly 

 more truncate elj'tra of the male. This species, which is repre- 

 sented by a large series, has been heretofore almost universally 

 confounded with the eastern monodon, wdiich it strikingly resem- 

 bles in facies. It is however widely and constantly distinct in 

 the form of the thoracic process, as may be seen at a glance if 

 the separated series be even casually examined. The elytral mac. 

 ulation is nearly as in monodon, except that the subapical black 

 cloud on each elytron, which is almost constantly present in that 

 species, is here quite as constantly absent. In the vicinity of 

 San Diego there is, however, a variety of constrictus which has 

 the lateral and subapical dark patches frequently visible, and the 

 thoracic punctures a little finer and sparser, agreeing rigorously 

 with the northern forms in the structure of the thoracic process, 

 except possibly that it is a little more pointed as a rule. 



W. roblistlis. — Very stout, dull from the density of the vestiture, pale 

 ochreo-testaceous throughout, each elytron with a large rounded scutellar spot 

 and a transverse fascia at apical third, abruptly interrupted very near the 

 suture, but prolonged narrowly along the latter slightly beyond the middle. 

 Head very much smaller than the prothorax, finely, closely punctate but shin- 



