. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. «>-r ..I il':''-f' , ^1' V,- i . «t' .â tir '' â "â , * â .i 1. 1 .-t * »â : â '' C2 COLEOPTKRA OP NOllTII AMERICA. broader than those of the previous groui), and arc easily distin- guislied by tlie prominent eyes, and by the third joint of the maxillary pal[ii being thiekened. They live exclusively In fungi, and are gregarious; they are remarkable for the smooth shining surface, almost destitute of hairs or punctures. The anterior tarsi are 4-jointed, and the middl
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. «>-r ..I il':''-f' , ^1' V,- i . «t' .â tir '' â "â , * â .i 1. 1 .-t * »â : â '' C2 COLEOPTKRA OP NOllTII AMERICA. broader than those of the previous groui), and arc easily distin- guislied by tlie prominent eyes, and by the third joint of the maxillary pal[ii being thiekened. They live exclusively In fungi, and are gregarious; they are remarkable for the smooth shining surface, almost destitute of hairs or punctures. The anterior tarsi are 4-jointed, and the middle and i)osterior ones 5-jointed; the first joint of the hind tarsi is elongated; the thorax is distinctly margined. The labial palpi have but two joints. Our species belong to Gyrojilnena, which is distinguished from the other genera of the gron[) by the entire ligula, and the very short secoud joiut of the labial palpi. Group III.âGymnusae. In this group the lobes of the maxilhe arc long and slender, the inner one is entirely corneous, serrate internally, and houked at the apex. The maxillary palpi have the second and third joints very long, and the fourth not very distinct. The head is deflexed, pointed in front; the antenna* slender; the thorax and elytra broad, and the abdomen strongly but gradually narrowed behind, so that a form is assumed approaching that of some members of the next tribe. Labial palpi setaceous, with two indistinct joints ; anterior tarsi 4-jointed, posterior ones 5-jointed ; ligula short, entire. ^na. Labial palpi large, 3-jointed, last joint very small; tarsi 3-jointed; ligula large, bifid ; lobes nearly as long as the palpi. Uinopsis. Thus far species have occurred only in the Atlantic States; they are but three in number (one Myllojua, two Diuopsis), and are found in very wet places. 4-: 't\'- Tribe ILâTACHYPORINI. The prothoracic spiracles are visible; the anterior coxfe are large, conical, and prominent, with the trocha
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Keywords: ., bookauthorlecontejohnljohnlawre, bookcentury1800, bookdecade1860
