56 J. L. LECONTE, M. D. 



4. — Black or piceous ; prothorax transverse, not narrowed in front, side margin of 

 nearly uniform width, nicked about the middle ; ferruginous or yellow, with 

 a black dorsal line; elytra densely scabrous, with pale margins, 9 prothorax 

 bisinuate on the sides, antennre shorter than in the % . Length 3.5 — 5 mm. ; 



Pa.; Fla.; Tex 4. liinhatiis Lee. 



a. — Prothorax without dorsal vitta. 

 /i. — Elytral pale margin obsolete. 



SllilS Charp. 



The table of species given by me,* requires modification to permit 



the introduction of several new species, which have since been collected. 



To avoid the inconvenience of referring to the previous volume, I have 



changed its form as follows : f the characters being taken from the S % ■ 



Base of prothorax broadly rounded, not lobed, sides excavated into a deep 

 round cavity near the base ; both angles of the excavation acute, ante-basal 

 appendage acute, spiniform A. 



Base of prothorax lobed, excavation of hind angles parfrly basal, angles there- 

 fore not very distinct though acute, anterior margin of excavation sinuate with 

 two prominent but rounded angles ; ante-basal appendage acute, spiniform, directed, 

 acutely backwards B. 



Base of jjrothorax lobed, deeply foveate inside of the hind angles which are 

 therefore more prominent and acute; incisure near the base moderately deep, with 

 the anterior angle rounded; ante-basal process compressed, rounded at tip C. 



Base of prothorax not lobed. broadly reflexed ; excavation entirely lateral, 

 anterior angle of incisure nearly rectangular, hind angle long, acute, produced 

 into a slender filament which is bent forwards D. 



Base of prothorax not lobed, posterior process of incisure not ante-basal, as in 

 the preceding groups of species, but proceeding from the base itself, by an exten- 

 sion of the hind angles; this process, as well as the anterior one is compressed 

 and (ihtusp at tip E. 



\. 



Yellow testaceous, head, antenna; and legs more or less dusky; 9 prothorax very 

 transverse, rounded on the sides which are feebly sinuate near the base, 

 much narrowed in front, ^ 9- Length 7 mm.; Or 1. spiiiigoi'a Lee. 



Black, prothorax bright reddish yellow, formed as in fspinigern, from which it 

 differs chiefly by color and more slender body ; (perhaps the fully developed 

 form of that spfecies). Length 7 mm. ; Atlanta, Id., (Allgewahr) ; Garland, 

 Col., (SchM'arz) 2. niunita n. sp. 



* Trans. Am. Ent. Soc. 1874, 60. 



t It must be noticed that in this gcMis, as in several others in Ooleo])tera, (he 

 specific characters are exhibited chiefly in the %; in not a small number of in- 

 stances in such genera the 9 9 "^f different species are as yet uudistinguishal)le. 

 Some of the sexual characters in this genus seem to have escaped the attention of 

 European observers. The anterior claw of the front tarsi, namely, of the 9 's 

 more or less toothed at base, and the inflejfed flank of the prothorax at the first 

 quarter of its length with a fine transverse line, which runs to the side margin, 

 and rejire.'sents the nick already mentioned as occurring in both sexes of Polemius. 

 The penultimate ventral segment is cleft to the base in the % , exposing the wliole 

 length of (lie eighth segment. 



