AMERICAN COLEOPTERA. 63 



Dusky, head blackish, larger, wider than prothorax, densely iiunetulate, eyes 

 larger and more prominent; prothorax not wider than long, dull yellow, sides 

 parallel, strongly margined, broadly impressed near the front angles, antennfe 

 rather stout, extending beyond the middle of the elytra, first joint testaceous, 2 — 4 

 nearly equal. Elytra two-thii-ds as long as the wings, rugosely punctured. Differs 

 from fragilis and exilis liy prothorax not wider than long. Length 2.5 mm. ; 

 Lake Superior ; one 9 16. qnadricollis n. sp. 



Much smaller, pale inclining to dusky; head piceous, not wider than prothorax, 

 punctulate, eyes moderately large, antennfe stout, extending to middle of elytra, 

 black or piceous, first joint pale, second joint a trifle longer than third, outer joints 

 not much longer than wide. Prothorax wider than long, sides strongly margined, 

 front angles obliquely truncate, more reflexed and prominent than usual. Elytra 

 two-thirds as long as the wings, rugosely punctured. Length 1 mm.; L. Super. 

 and Mass 17. parviilns Lee. 



Bibliography and Synonymy. 



Sub-family I. — Lycidse. 



LYCUS Fabr. 

 1. L. cruentus Lcc, Proc. Acad. Nat. Sc. Phila. 1801, ."{.Sfi.* 



LYCOSTOMUS Motseh. 



1. L. lateralis Mels., {Lycus), Proc Acad. Nat. Sc. Pliiln. ii, :'>02 ; Lcc. Journ. 



Acad. Nat. Sc. Phila. 2d. ser. i, 7.3. 



2. L. fulvellus n. sp. ante, 18. 



RHYNCHEROS Lee. n. g. 

 1. R. sanguinipennis Say, {Lycus), Journ. Acad. Nat. Sc. Pliila. iii, 178; od. Lcc. 

 ii, 116 : Say, Am. Ent. ii, pi. 21 ; ed. Lee. i, 45. 



CALOPTERON Guer. 



1. C. megalopteron Lee, Proc. Acad. Nat. Sc. Phila. 1861, 34<l. 



2. C. termiuale Say, (Lycus), Journ. Acad. Nat. Sc. Phila. iii, 178; e<l. Lee. ii, 



116; Say, Am. Ent. ii, pi. 21; ed. Lee. i, 44; Lee. loc. cit. i, 75; [Var.] 

 Digr. divisa Newm. Ent. Mag. v, 381 ; Waterh. Types, i, 22, pi. vi, f. 2; 

 form typ. rcticulatitm J Lee. (nee Fabr.) loc. cit. i, 75 ; Digr. doraalis Newm. 

 Ent. Mag. v, .386; Waterh. loc. cit. i, 22, j)l. vi, f. ?. ; duplicahtm Ilald. 

 Proc. Acad. Nat. Sc. Phila. i, 20.3. 



3. C. reticulatum Fabr., (Lycus), Syst. Ent. 203; Syst. El. ii, 111 ; Oliv. Ins. 29, 7, 



pi. 1, f. 7; Anon. Biol. Centr. Am. Lycidse, pi. 1, 17; Digr. tyjiica Newm. 

 Ent. Mag. v, 380; Lee. loo. cit. i, 21, pi. vi, f. 1 ; Digr. discrepans Newm. 

 Ent. Mag. v, 381 ; var. Digr. affinis Lee. loc. cit. i, 75; var. Digr. apicalis 

 Lee. ibid. 75.1 



* L. cruentus Fabr., Syst. El. 114, from Sumatra is an older homonym of this 

 species, but as it seems to be dropped out of modern bibliography, I do not think 

 it necessary to change at present the name of the species described by me. 



t In the table on p. 20 (above) the name reticulatum should be changed to 

 terminale, and typicum to reticulatum to correspond with synonymy here, given, 



