30 COLEOPTERA OF NORTH AMERICA. 



the form of Dyschirius among the Searitini ; three joints of the 

 anterior tarsi and two of the middle tarsi are dilated in the male, 

 and furnished beneath with squamiform papillae. The mentum has 

 a distinct tooth. 



Group II. — Psydri. 



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 tibiae and distinct paraglossas, as well as by 

 the large epimera of the mesothorax. The statement of Schaum, 

 that the epimera of the metathorax are indistinct in the Morionini 

 (in which tribe he places Haplochile), I do not find correct, either 

 of the genera here placed or of Morio itself. 



Haplochile pygmcea 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. 



Haplochile. 

 Eyes small, rounded ; body depressed. Psydkos. 



Tribe XII.— STENOMORPHINI. 



The ligula is free at the apex, with distinct paraglossae; the 

 antenna? have but two glabrous joints. The last joint of the palpi 

 is cylindrical, subtruncate. The mentum is deeply emarginate, not 

 toothed. The anterior tibiae 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 papillae 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 dorsal punctures. The 

 epimera of the mesothorax are very short. 



The species are few in number, and are South American, with 

 the exception of the two which are found in our territories. Agao- 

 soma californicum is found in salt-marshes in California, Stenomor- 

 phas rvflpes in Texas. They are very slender, elongated insects. 



