656 FAMILY XXVII. — LATIIRIDTID.E. 



bb. Thorax but slightly narrower thau elytra. 



c. P^yes miuute, situated at about their own length from the hind 



angles of the head. 



d. Elytral intervals 3, 5, 7 higher than the others. costulata, 



(Id. Elytral intervals subequal ; form more narrow. filiformis. 



cc. Eyes much larger, occupying the hind angles. argus. 



aa. Antennal club two-.iolnted; thorax with a large rounded fovea on front 



of disk. FILUM. 



125D (378G). Cartodkhe lUFicoi.rjs Marsh., Ent. Brit., I, 111. 



Elongate, slender, subconvex. I'ale reddish-brown, elytra darker. Au- 

 tennal club rather abruptly three-jointed, its tirst joint large, orbicular; 

 second less thick, elongate-oval ; third small and subglobular. Thorax sub- 

 cordiform, sides rather strongly rounded in front of middle, deeply con- 

 stricted near base; surface densely and rather finely punctate. Elytra 

 elongate-oval, each with seven rows of coarse, closely-set punctures ; inter- 

 vals narrow, very feebly convex except the sixth, which is more prominent. 

 Length 1-1.3 mm. 



Howard County; frequent locally abont a barn. June 24. An 

 introduced species \Wdely distributed throughout the United States. 



C. cost'ulata Reitt. and (/. filiformis Gyll., both reddish-yellow 

 and 1-1.5 mm. in length, are known from Michigan and near Cin- 

 cinnati; C. argus Reitt. and C. fiJuhi Aube, also dull reddish-yellow, 

 length L8 to 1.(5 mm., range from Canada, INlichigan and westward. 



Tribe II. CORTICARIINI. 



This ti'i])e has the thorax -without distinct sculpture, its sides 

 more or less crenidate or deuticnlate, the disk with nearly always a 

 rounded or transverse impression before the base ; front coxjb 

 nsually contingnous or nearly so; a1)domen with five or six ventral 

 segments; elytra without cost a? but with hairs arranged in rows. 

 Three genera compose the trilje, two of which are represented in 

 Indiana. 



KEY TO INDIANA GENERA OF CORTICARIINI. 



(t. Abdomen of female with five segments, a sixth usually visible in the 



males; form more elongate. IV. Corticaria. 



aa. Abdomen of both sexes with six segments, except in plcta, where the 



male has but five; form more oval. V. Melanophthalma. 



IV. Corticaria IMarsh. 1802. (Lat.. "Inirk.") 



Small (^longate or oblong-ovat(! species having the pubescence 

 more or less long and conspicuons. that on the elytra arranged in 

 rows; eyes lai'ge and rather pi-omiiicnt ; antenna' usually not quite 

 reaching the hind angles of thorax, ll-jointed, the clnb 3-jointed; 

 thorax usnally snbcordate, with front and hind angles obtuse, sur- 



