COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA. 349 



Clivina impressifrons. — Not uncommon along streams, likewise rufa and 

 americana ; bipustuluta, rare along streams. 



Schizog-enius lineolatus. — Not rare, banks of streams ; amphibms, less common, 

 under stones in streams. 



Ardistomis viridis. — Only a few examples were seen, wet places. 



Panag-Eeus fasciatus.— Not uncommon in early Spring and in Autumn under 

 stones on hills, frequently hibernates in ants' nests. 



Bembidium punctatostriatum and insequule common on muddy shores ; ni- 

 tidnlum || and americannm not rare ; chalceum, only three examples ; anfiqmim 

 less rare ; nigrum., simplex and guexii, abundant when found, but in few lo- 

 calities, mostly along rocky streams; ustulatiim, two examples; this and all 

 the preceding occur along the shores of creeks; picipes, abundant in the beds 

 of hill rivulets; posfrenmm, common on sandy shore of river, June and July ; 

 (lenfeUnm, abundant in alluvial places in grass and rubbish ; postfasciatmi, not 

 common, gregarious, on mud flats along streams ; patruele, common ; variega- 

 tum and versicolor less common, and all along streams: sulcatum, not common, 

 in grass about ponds and swamps ; affine and assimile, abundant in grassy 

 swamps and alluvium ; quadrimaculatum, all situations ; pedicel'atum, not 

 common, wet grassy places ; Isevigatum, sandy beaches, June and July. 



Tachys proximus, scitulns and coruscus, humid places ; Isevis, not rare ; nanus 

 and fiavicanda under bark ; vivax, capax, xanthopiis, incurvus, nebulosus and an 

 indeterminate, occur along the shores of streams and in nearly all humid 

 places. 



Pericompsus ephippiatus. — Common on mud flats. 



Patrobus longicornis. — All wet places. 



My as cor acinus. — Not uncommon on hills in woods ; cyanescens, two examples : 

 more frequent near the mountains. 



Pterosticbus adoxus Say. — Common, breeds in decaying logs ; rostratus, same 

 habits, only four examples, more common towards the mountains; vinctus, 

 not common, found in colonies, woody hills; imicolor, only one example on a 

 high ridge; apalacMus, hillside rivulets, July to October; honestus breeds in 

 decaying wood ; obscurus, not common, under stones on hills; lachrimosus, not 

 common, breeds in rotting wood ; coracinus more common, moist woodland 

 hills; sti/gicus, everywhere; relictus, local, slaty, moist ravines and hills; 

 mcestns, not rare, breeds in rotting logs; sculptus, two examples under stones, 

 common along the mountains; hamiltoni, under stones on hills; sayi. rank 

 herbage on alluvial places; lucuUandus, everywhere: caudicalis, luctuosns, 

 under rubbish in damp places ; corvinus, breeds in swamps ; tartaricus, two 

 examples at lights; pnrpuratus, abundant where found, rich hills, September 

 and April ; inutu^. under stones in woods and fields; erythropus, not rare, va- 

 rious places ; pntruelis, femoralis, not common, in primitive swamps. 



Evarthrus sigrillatus, sodnlis, under rubbish and stones, not rare. 



Avara avida, exarata, in same places; fulvipes local, abundant when found, 

 September ; angiistata, rare, under rubbish ; impuncticolUs, everywhere ; ba- 

 sillaris, two examples ; cupreolata, not rare, grassy places ; fallax, not rare in 

 localities; obesa, not common, under stones; rubrica, three examples; mns- 

 cnlas, not common. 



Diplochila major. — Two examples at light. 



TRANS. AM. ENT. SOC. XXII. OCTOBER, 1895. 



