354 MANDIBULATA. COLEOPTERA. 



Sp. 2. domesticum. Cylindricum, nigrum, subglabrum, tarsis antennarumque 

 clavd, oblique acuminata, testaceis, elytris griseo-pallidis, suturd limboque 

 nigro-fuscis. (Long. corp. 1| — if lin.) 



De. domestieus. Linne.—Bo. domesticus. Steph. Catal. 144. No. 1455. 



Cylindric, black, nearly glabrous, punctulated : thorax very convex, tuberculate 

 anteriorly: elytra narrower than the thorax, livid, or pale griseous, shining 

 glabrous, obsoletely punctate-striate, the suture and lateral margins broadly 

 fuscous-black : legs black : tarsi, and sometimes the tibiae at the apex, fer- 

 ruginous : antennae dusky at the base, the club testaceous. 



I have one example from the Marsliamian collection, and a pair 

 found in the New-forest : said to be partial to the alder. 



Genus CCLXVL— Platypus, Herbst. 



Antenna;' composed of six joints, of which the terminal one forms a solid ovate, 

 considerably compressed club : the three preceding joints are transverse, the 

 second short, incrassated : the basal one elongate, robust, and curved. Palpi 

 short: mandibles exserted, acute: head globose, anteriorly flat: eyes ovate, 

 entire : thorax elongate, cylindric, with a lateral excavation to receive the 

 anterior femora: body cylindric-linear : elytra truncate: legs long, com- 

 pressed: posterior pair remote: tibia short, anterior deeply striated trans- 

 versely without: tarsi pentamerous, longer than the femora and tibiae united, 

 very slender, the basal joint very long. 



The singularly constructed six-jointed antennae, of which the 

 last articulation forms a solid capitulum, exserted mandibles, ex- 

 cised thorax, remote posterior legs, striated short anterior tibise, 

 and elongated, slender, simple tarsi, form some of the leading cha- 

 racteristics of this singular genus. 



Genus CCLXV. — Rhyzopertha* mihi. 



Antenna with the capitulum triarticulate, the articulations sublaminate : head 

 small, deeply inserted in the thorax, the latter very convex, scabrous in front : 

 body cylindric : elytra elongate, entire : tibia serrated. 



T Sp. 1. pusilla. Cylindricua, piceo-ferruginea, elytris punctato-striatis inte- 

 gris. (Long. corp. if lin.) 



Si. pusillum. Fabricius. — Pti. piceus. Mar sham (I)— N. S. pusilla. Steph. 

 Catal. 411. No. 1453. note. 



Piceo-ferruginous : the thorax convex, scabrous in front: elytra glabrous, 



shining, punctate-striate : antennae ferruginous. 

 Frequently taken by Marsham in roots and seeds from India; consequently it is 



not an indigenous species. 



* Ti'Ca, radix ; vrigfa, pcrdo. 



