. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. TllOOOSITinAE. Prothorax not passing over tho base of the elytra; side pieces not distinct; cuxal cavities closed in the lirst and tfiird sub-fiiinilies, usually o[)eu behind in thesecoud; pro- sternum separating the coxaj (except in Peltastiea). ^[esosteruum separating the coxa3, side pieces extending to the coxa?. Metasternum emarginato behind, for junction with the first ventral segment; side pieces long, narrow; epimera not visiVjle. Elytra never truncate, always covering tho ab
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. TllOOOSITinAE. Prothorax not passing over tho base of the elytra; side pieces not distinct; cuxal cavities closed in the lirst and tfiird sub-fiiinilies, usually o[)eu behind in thesecoud; pro- sternum separating the coxaj (except in Peltastiea). ^[esosteruum separating the coxa3, side pieces extending to the coxa?. Metasternum emarginato behind, for junction with the first ventral segment; side pieces long, narrow; epimera not visiVjle. Elytra never truncate, always covering tho abdomen. Abdomen with live Tree ventral segments. Anterior coxio transverse, separated, and not prominent (except in Peliustiea); middle and posterior ones transverse, llut (except in Peltastiea), the Ibrmer separated, the latter rarely contiguous. Legs moderate; tarsi 5jointed, not dilated; joints 1â4 with a brush of hair beneath ; first joint very siiort, second usually slightly elongated, last joint very long; claws simple, with a broad, but short bisetose onychium. The insects of this family were classed by Erichson with Nlti- dulidie, but, as very properly observed by Lacordalro, although the characters arc mostly the same as in tliat family, the dirt'eront plan of structure in the maxilla) and tarsi is suflicient to mark them as a distinct family. The species live under bark; but some Trogosita; arc found in houses, living on grain, by tlie transportation of which they have been distributed over the entire globe. Of the fi^ur recognized tribes of this family but two are found in our fauna; I consider them as indieatuig sub-families, and I have added a third for the anomalous genus Peltastiea. Anterior coxse sepcarate, not prominent; Internal lo])e of the unarmed. Trohomtip^. Internal lobe of the maxillse armed with a corneous hook. Peltid/i;. Anterior coxjb prominent, contiguous. Peltasticiu*. Sub-Family I.âTROGOSITIDAE (genuini). Elongate insects, havin
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Keywords: ., bookauthorlecontejohnljohnlawre, bookcentury1800, bookdecade1860
