188 GEO. H. HORN, M. D. 



accomplished, it is hoped that discussion will clear up much of the 

 obscurity and bring some order from the existing chaos. 



All of Lacordaire's tribes will be found to have been reviewed, and 

 from among the genera I have endeavored to select for special study 

 those about which he or others appeared to be in greatest doubt. The 

 judgment on the choice of genera must be left to the criticism of all 

 who choose to find out which they are by a perusal of the preceding 

 pages or a reference to the index. 



That section of the genus Oi/chrus known as Sphaeroderus has been 

 supposed to be peculiar to the eastern portion of the Atlantic region, 

 no species having heretofore been found west of the Mississippi River. 

 Within a few days a species has been received from Washington 

 Territory. I give the description here as an interesting contribution 

 to geographical distribution. 



Cji'ClirilS {Sphccroderas) relictllK n. sp. — Fditii ^^lender. black, sliining. 

 Head smooth.' Thorax cordiform, one-fourth broader than long, sides arcuate in 

 front, oblique behind, base not broader than apex and one-third shorter than the 

 length, hind angles slightly obtuse, margin very narrowly reflexed, apical arcuate 

 line and basal transverse line moderately deeply impressed, median line less 

 deeply, the intra-angular impressions rather deep and curved in front toward the 

 median line, disc very little convex, surface smooth, slightly wrinkled posteriorly. 

 Elytra very regularly elliptical, twice as wide at middle as the thorax and a. little 

 more than one-half longer than their width, margin very narrowly retlexed, 

 surface with a slight violet tinge with numerous rows of moderately deeply im- 

 pressed punctures, the striise irregular. Body beneath smooth, shining. Length 

 .68 inch; 17 mm. 



This species is more elongate than any of our eastern SjJinei-oderus, 

 and differs also in the absence of any punctuation at the base of the 

 thorax and by the sculpture of the elytra. The legs are also more 

 slender and longer thaq in the other species. The general aspect of the 

 insect is that of a Sphaerodei'us imitating Cijchrus strlatopunctdtua. 

 One male collected at Spokane, Wash. Terr, by Mr. L. E. Ricksecker. 



To the Clivin;i3 belongs the European genus Realiela Saulcy, re- 

 markable as the only known member of the Carabinte with the eyes 

 so reduced as to be with difficulty observed. The species is extremely 

 small (.00 inch) even for a member of the tribe to which it belongs. 

 Synonymous with this genus is Spelseodj/tes Mill. A figure of R. luci- 

 fuga is given by Saulcy, Ann. Ent. Soc. Fr. 1862, pi. viii, fig. 5, from 

 which it seems allied to Olivlna rather than Di/schiriiix. 



