NORTH AMERICAN COLEOPTERA. 37 



The words, " thorace apice cornnhns dnohus antrorsii.7n pori-ectis 

 armato,^' convey the idea that there are two distinct horns, similar 

 to those observed in Ceracis, while, as can be seen from tlie descrip- 

 tion, this process in californicum is rather a thin, transverse, semi- 

 erect lamina, which is deeply emarginate at the apex and very short. 

 The length of Cis vituJus is given as twice the width, while in the 

 present species the length is two and three-fourths times the breadth. 



Finally, and especially the head being 4-dentate anteriorly in Man- 

 nerheim's insect, leads me to believe that it may even belong to a 

 different genus. We are, therefore, seemingly brought to the conclu- 

 sion, that, if the description of that author is of any value at all, it 

 must be that of some other species than the one described above. 



The species seems to resemble E. Mellyi of Mellie ; it is, however, 

 much larger, and differs in many minor characters. 



It occurs in California, and is found abundantly in the parasitic 

 fungus of the laurel. 



E. llliicolor n. sp. Male. — Form rather elongated, cylindrical, sides 

 parallel. Pubescence excessively short, rather sparse, erect, evenly distri- 

 buted, somewhat pale and scarcely visible. Head wider than long ; inter- 

 ocular surface concave ; anterior margin strongly reflexed into a position 

 nearly perjiendicnlar to the interocular surface ; anterior edge somewhat 

 angularly and rather strongly emarginate ; labrum very small, nearly as 

 long as wide, rounded in front. Prothorax slightly broader than long, very 

 feebly constricted at the base ; sides evenly arcuate ; anterior angles almost 

 obsolete, posterior right ; base very broadly, feebly, and evenly arcuate ; 

 disk very convex, very minutely reticulated, finely, distinctly, and very 

 evenly punctate ; anterior portion prolonged in a process nearly as long as 

 wide, so deeply cleft anteriorly as to give rise to two divergent horns of cir- 

 cular cross-section, slightly rounded at tip, and nearly twice as long as broad 

 at base. Scutellum slightly wider than long, triangular, sides feebly arcuate. 

 Elytra at base as wide as the prothorax ; sides parallel and very feebly 

 arcuate ; together nearly twice as long as the pronotum, exclusive of the 

 horns ; broadly rounded behind, more acutely so at the immediate apex ; 

 disk very finely punctulate, and, in addition, confusedly and feebly rugulose, 

 polished. Legs very short and robust ; last joint of anterior tarsi twice as 

 long as the preceding Joints together. Antennae very short, scarcely as long 

 as the width of head, club large, first joint distinctly larger than the second, 

 third as long as the next two together, fourth, fifth, and sixth joints nearly 

 globular, very small, fifth slightly the largest, seventh and eighth joints 

 much broader than long, last nearly as long as wide and flattened. Entire 

 body piceous-black, legs very dark rufo-piceous, antennae and oral organs 

 piceo-testaceous, club of antennae slightly darker, central portions of gula of 

 a slightly more reddish tint than the legs. The first ventral segment bears 

 in the middle, what appears to be a very minute ciliated tuberculation. The 

 tibiae are not dentate outwardly at the tip, but are provided with a row of 

 very short, robust spines of a much paler tint. Length 1.3 mm. 



