COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA. 361 



Teretrius americanus, not common, under bark. 

 Bacanius tantillus, not rare, under bark. 

 Acritus exig-uus, common, under bark of locust. 

 Aeletes politus and simplex, not common, under bark. 



NITIDULID^. 

 Brachypterus urticse, common on bloom of Urtica. 

 Cercus abdominalis, common on blossoms; pennatus, on Sambucus rubens, 



April. 

 Carpophilus hemipterus, common in foreign fruits ; the other species are not 



rare, at sap, April, and on blossoms. 

 Colastus morio, rare: unicolor, rare; semitectus not rare, April, at sap: trun- 



catiis, common, on flo\?ers. 

 Epursea helvola and rufa, common in fungus ; erichsoni and nvara, less com- 

 mon ; rufida, common, by beating dead leaves, etc. ; labilis, common on flowers ; 



truncatella in fungus, AUeghanies. 

 Nltidula bipunctata, about cured meat; rufipes, not rare by beating; sicsuc, 



mostly on dead birds, etc., not common. 

 Stelidota geminata, very common in rotting fruit, etc. ; octomaculata, common 



under stones, etc. 

 Prometopia 6-maculata, not rare, under bark. 

 Soronia undulata, two examples, in a swamp ; substriata, two examples under 



maple bark, May. 

 Perthalycra murrayi, one example. 



Pocadius helvolus, common in growing puff balls, August. 

 Meligethes mutatus, very common on Urtica, etc., June. 

 Oxycnemus histrina, not rare, in putrid fungus, September. 

 Amphicrossus ciliatus, not rare, at putrid sap, April. 

 Cychramus adustus, not common, by beating. 

 Cryptarcha ampla, common ; concinna, less common. 

 Ips obtusus, rare, here and at St. Vincent; smiguinolentus common, and con- 



fluentiis less common, both at sap, April. 

 Rhizophagus cylindricus, bipunctatus and remotus common under the 



epiderm and about bark ; minidus var. frequent at sap in April ; this may 



really be an undescribed species with an obscure rufous vitta on each elytron, 



likewise occurring in New York and in North Carolina. 



LATBIDIID^. 



Stephostethus liratus, common by beating. 



Latridius minutus, common under bark, April to May ; opnculus, not common ; 

 fiUformis, occasional in the debris of imported raisins, etc. 



Corticaria elongata, not common, by beating ; cavicollis and distingtienda, com- 

 mon, by beating; pida, common, by beating grass in wet places. 



TROGOSITID.E. 



Nemosoma cylindricum, rare, in dead trees. 



Alindria cylindrica, common, boring dead trees. 



Tenebrioides mauritanicus, common in granaries ; corticalis, common ; var. 



dubins not common ; americanus, common under bark ; unnus, not common ; 



bimaculatus, rare here ; more common at St. Vincent. 



TEAN8. AM. ENT. SOC. XXII. (46) NOVEMEEK, 1895. 



