. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. STAPUYLIN'IDAE. 50 Aleocharini the anterior tarsi are 4 jointed, while the rniddlc aad hiud tarsi have five joints. Tliis family eiu))raccs a vory laru-o iimiil)er of species, iimstly of small size, and in many parts of the body slujws a very g'reat range of variation. Genera with short elytra oeear in several families of Coleoptera, hnt in no other are they associated with an entirely corneous abdomen having seven or eiglit visiljle seg- ments. I have separated the family into the
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. STAPUYLIN'IDAE. 50 Aleocharini the anterior tarsi are 4 jointed, while the rniddlc aad hiud tarsi have five joints. Tliis family eiu))raccs a vory laru-o iimiil)er of species, iimstly of small size, and in many parts of the body slujws a very g'reat range of variation. Genera with short elytra oeear in several families of Coleoptera, hnt in no other are they associated with an entirely corneous abdomen having seven or eiglit visiljle seg- ments. I have separated the family into the same divisions as those adopted l)y Kraatz in the second volume of the Inseeten Deutsch- lands, but I am not in accord with him in considering them ail iis of equal value in classiftcation. The form of the anterior coxiu seems to me of greater significance than the other characters used in separating tlie dilferent groups which have been previously called tribes, ami I have made the primary division on the form of those organs into sub-families. The prothoracic I)reatliing-porcs (stigmata) arc visible in cer- tain tribes ('Aleocharini, Tachyporini, Stapliylinini), but invisible in the rest of the family. This character is sometimes dillicult to perceive; but I have not been able to follow the example of Duvul, in excluding it from a primary place in tlie synoptic table of tribes. I would divide the family into three sub-families:â Anterior coxre prominent; anterior coxal cavities open beliiml. Anterior coxre not prominent; anterior coxal cavities entire ; Anterior coxic globose, posterior contitrnous. Anterior coxoe transverse, posterior distant. Mickopeplid.*. Sub-Family I.âSTAPHYLINIDAE (genuini). This sul)-family contains the great bulk of the species, and is much less homogeneous than the other two; tlie tribes composing it are as folh" ws:â A. Prothoracic stigmata visible ; insertion of tlie aiitennnRâ Upon the front, at the inter
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