86 



MANDIBULATA. COLEOPTEllA. 



Other points, remarkable, especially that of the palpi, which arc 

 extremely conspicuous, and sometimes nearly equal in length to the 

 antennae; the base of the elytra is mostly folded, and the latter are 

 sometimes above half the length of the abdomen. The indigenous 

 species, which are found during the winter and spring beneath moss, 

 and subsist upon acari, may be thus distinguished into genera : 



Corpus breve convexum. 



Pa^j «m.ii//a>r* art", ult". clavato : .... 479. Pselapuus. 



conico: .... 480. Bryaxis. 



securiformi. 



.(4«/en?;a; art". 2''". 1"'". crassiore: .... 488. Bythinus. 



tenuiore. 



/■/(ora-r antice angustior : 481. Tyciius. 



postice angustior : 482. Arcopagus. 



Cor2)us elongatum, depressum : 484. Euplectus. 



Genus CCCCLXXIX. — Pselaphus, Herhst. 



Anfeimw about half the length of the body, long, slender, and gradually 

 clavated, the basal jomt long, robust, cylindric, the second shorter, six fol- 

 lowing subglobose, equal, the ninth and tenth longer, obconic, the eleventh 

 largest, elongate-oval, or ovate. Palpi maxillary nearly as long as the 

 antenna^, with the basal joint minute, second long, slender, and gradually 

 clavate, third as long, attenuated in the middle, fourth small ovate, terminal 

 one very long, clavate, the club pear-shaped : head triangular, emarginate 

 in front : thorax elongate : elytra somewhat triangular, about half the length 

 of the abdomen, the first segment of which is very large : legs long, pubes- 

 cent ; fejnora slightly incrassated. 



The great length of the palpi of these insects, united to their clavate 

 terminal joint, with the bulk of the first abdominal segment, elongate 

 elytra, and slender subcylindric thorax, readily point out the species 

 of this genus. 



Sp. 1. Herbstii. Nigro-castaneus, subpubescens, thorace elongato,snhcylir,drico, 



Icevi, nitido, ahdomine triangulari. (Long. corp. li lin.) 

 Ps. Herbstii. Reichenbach.— Benny, M. pi. 9. / 1. Steph. Catal. 256. 



No. 2546. 



Dark chestnut, slightly pubescent : head with a longitudinal bifid furrow in 

 front, the forehead depressed, the crown convex and smooth : thorax longer 

 than the head, suhcylindinc, suiooih, the base and apex narrowed: elytra 

 nearly triangular, convex, with a longitudinal sutural line on each, and a 

 second arcuated one on the shoulder, the apex pubescent : ahdoitieu i?-iun- 



