. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. â '*^v m i â¢:! -Il- 30 COLEOPTERA OF NORTH AMERICA. the form of Dyschirius among the Scaritini; three joints of the anterior tarsi and two of the middle tarsi are dilated in tlie male, and furnished beneath with squamiform papillae. The meutum has a distinct tooth. Group II.âPsydri. Abdomen moderately pedunculated; posterior angles of the tho- rax distinct; mentum not toothed. Two genera showing a tendency to revert to Morio are com- prised in this group. They differ, however, from
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. â '*^v m i â¢:! -Il- 30 COLEOPTERA OF NORTH AMERICA. the form of Dyschirius among the Scaritini; three joints of the anterior tarsi and two of the middle tarsi are dilated in tlie male, and furnished beneath with squamiform papillae. The meutum has a distinct tooth. Group II.âPsydri. Abdomen moderately pedunculated; posterior angles of the tho- rax distinct; mentum not toothed. Two genera showing a tendency to revert to Morio are com- prised in this group. They differ, however, from that tribe by the not compressed anterior tibias and distinct paraglossae, as well as by the large epimera of the mesothorax. The statement of Schaum, that the epimera of the raetathorax are indistinct in thf Morionini (in which tribe he places llaplochile), I do not And cc I'cct, either of the genera here placed or of Morio itself. llaplochile pygmcBa has a remarkable distribution, being found in the Atlantic district and also in Oregon. It is a small, brown, subcylindrical insect, which, when disturbed, emits a very powerful fetid odor, quite disproportioned to the size of the animal. I have found it under pieces of wood, in moist places, at Lake Superior. The anterior tarsi are scarcely dilated in the male. Eyes extending to the margin of the oral opening; body convex. Eyes small, rounded; body depressed. Tribe XII.âsTE:yoiiiORpni]yi. The ligula is free at the apex, with distinct paraglossfc; the anteniiic have but two glabrous joints. The last joint of the palpi is cylindrical, subtruncate. The mentum is deeply emarginate, not toothed. The anterior tibiaj are thickened and slightly spinous at the tip; the first joint of the anterior tarsi is broadly dilated in one sex, but has beneath neither squamiform papilla? nor hairs; in the other sex it is not dilated, but is as long as the two following. The elytra are deeply striate, without any
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