AMERICAN COLEOPTERA. 349 



Synopsis of the EROTYLlft.E of Boreal America. 



BY G. R. CROTCH, M. A., CANTAB. 



Abdomen with 5 segments ; tarsi 5-jointed, fourth, generally small, 

 concealed in the third; claws always simple; antennae clavate, with a 

 loose club of 3 — 4 joints in most cases ; legs unarmed, coxal lines on 

 the metasternum and first ventral segment generally present, but 

 abbreviated ; maxillary palpi with the last joint generally securiform; 

 body very rarely pubescent. 



Dacne [Engis] and Languria have been added to this group, and 

 although Lacordaire had not originally done so, yet as he has not 

 placed either of these genera in his third volume he must have in- 

 tended them for this family. 



It will take its place in the Clavicorn series immediately after 

 Ort/ptophagidse. The family was monographed by Lacordaire (Mono- 

 graphu des Erotyliens, 8vo., Paris, 1842), and the American species 

 were revised by Leconte (Journ. Acad. Phil. (2), i., p. 71), in 1847, 

 and again (Proc. Acad., vii., p. 158), in 1854; since then several 

 single species have been published, and a revision of the entire family 

 (including Languria) is in the press. 



Languriides. 



Form elongate, parallel, anterior coxal cavities open behind, meta- 

 epimera indistinct. 



LANGURIA, Latr. Hist. Nat., iii., p. 209. (Type Mozardi.) 

 Eyes finely granulated, antenna; with a gradual club (5 — 6-jointed), 

 thorax with the base margined, and generally with a small basal 

 striola ; elytra with the epipleura distinct, and a small sub-scutellar 

 abbreviated stria. 



A. — Body beneath more or less pale red. 

 L. bicolor, (Fabr.) Suppl. Ent. Syst., p. 50; thoracica, Oliv. Ent. vi., 88, t. 

 1, f. 2; Lee. Pr. Phil, vii., 158, 1; puncticolhs, Say, J. Phil. (1) iii., 462; Lee. 

 Pr. Phil, vii., 159, 2.— Elongate, pointed behind, red, antennae, legs, scutellum 

 disc of thorax, elytra, 5th ventral segment and apex of 4th black; head and 

 thorax sparingly and obsoletely punctate, the latter quadrate, rather narrowed 

 in front, sides rounded, base transversely impressed with a well marked striola 



TRANS. AMER. ENT. SOC. (45) APRIL, 1S73. 



