356 JOHN HAMILTON, M. D. 



[Tmesiphorus costalis Lee. — Only two examples.] 



Tmesiphorus carinatus Say. — One female found under bark in Sprinji. 



[Cedius ziegleri Lee. — A few examples once.] 



Cedius spinosus Lee. — In very rotten stumps during Spring and Fall. Ten 

 specimens have been found. This may not be LieCoute' 6 spinosus ; its first 

 dorsal segment of the abdomen has short, yet quite distinct carinse, which 

 are, in some specimens, even almost half as long as the segment. Long. 1.8 

 mm. -1.9 mm. 



Tyrus humeralis Aube. — Not often found under bark or sifted from leaves. 



Adranes ccecus Lee. — Has occurred but once witli me in a colony of Lasi.iis 

 aphidicula early in April. Five specimens. 



STAPHYLINID^. 



Falagria cingulata and F. dissecta occur in March and April on the underside 

 of stones on grassy slopes. An undescribed species resembling cingulata is 

 found about old stumps. 



Hoplandria lateralis is abundant in decaying vegetable substances ; an unde- 

 scribed species, received also from Ohio and Kansas, is found under stones 

 along sti'eams feeding on dead animal substances. Length .10-. 12 inch, 

 brown, basal half of elytra and abdomen, except segments 5 and 6, yellowish. 



Homalota S-maculata feeds on various fungi ; ambigua, October and November, 

 in decaying fungi : Amischa aualis and Colpodota lividipennis mostly under 

 bark; Homalota pedicularis, October, in dry, old cow droppings; an elongate, 

 very depressed form with sculptured thorax is abundant under bark of 

 robiniie ; a minute, depressed, elongated species .07 inch, long, with impressed 

 thorax lines under the outside bark of pine and feeds on the dry resin ; 

 several species were not collected. 



Lomechusa cava occurred once, but frequently at St. Vincent with ants. 



Tachyusa cavicollis, gracUlima, both about swamps. 



Myrmedonia schmitti, with ants, St. Vincent, not common ; rudis, one example. 



Aleochara lata and biinaculata, common ; brachypterus, not frequent; nitidn, 

 common ; the larvse are parasitic in dipterous larvae living in droppings of 

 cattle, and the beetles develop in their pupariums : two small species unde- 

 termined. 



Oxypoda sag-ulata, decaying vegetable matter. 



Bolitochara picta, hhmvhardi ("Can. Ent." vol. xxv, p. 276), abundant. 



Gyrophsena. — All the species abound in mushrooms. 



Dinopsis americana. — Very wet places, common. 



Acylophorus. — Both species are common in wet places. 



Heterothops fumigatus. — Under rubbish, etc., in damp places. 



Quedius fulgidus. — Two varieties, one piceous, the other with rufous elytra; 

 not rare; peregrinus is arboreal in habitat; the other species occur under 

 rubbish or the bark of trees, not rare. 



Listotrophus capitatus. — One example, St. Vincent. 



Staphylinus badipes. — Not common; vulpinus. rare; maculosus and cinnamop- 

 terus, common ; mysticus and comes occur rarely in fungus ; violnceus. not rare 

 under bark. 



Ocypus ater. — Not common under stones, etc. 



Belonuchus formosus. — In mushrooms, etc. 



