OF EASTERN PENNSYLVANIA. 11 



virginiana), its near cousin the common juni- 

 per {!^.commttm's), and the sweet gum {Liquidam- 

 bar styraciflua) . In early spring various species 

 of beetles constitute its principal food. An exami- 

 nation of the storfiachs of several birds, revealed 

 traces of the following coleoptera which mostly dwell 

 underneath stones, logs and the bark of trees. 

 For want of common names we are compelled to 

 place before our readers their scientific appella- 

 tions ; reserving for a future work, plain and 

 simple descriptions of the configuration and mark- 

 ings by which the uneducated in science may 

 be able to identify them. The most common 

 forms are DIccbIus dilatatus, Harpalus pensylvani- 

 cus, H. compar, Pangus caliginosus, Searites sub- 

 terraneas, Casnonia pensylvanica, Platynus cupri- 

 pennis; larvae and imagos oi Lachnostei'na quercina, 

 Cratonychus cinereus among beetles; Musca 

 domestica, Tabanus lineola, Stomoxys calcitrans, 

 Culex tceniorhynchus, whose common names have 

 been given above, crane fly {Tipulaferrugined), 

 Syrphus obliquus and Scatophago furcata among 

 diptera; Formica sanguinea among hymenoptera; 

 CEdipoda nebtdosa; CE. stUphurea, Caloptenafemtir- 

 rubrum among grasshoppers, and the black cricket 

 {Acheta nigra; larvae of Anisopteryx vernata, Eu- 

 fitchia ribearia, Geome'tra catenaria of Harris, corn 

 worm {Gortyna zece), Pieris oleracece, P. rapce, 

 Colias philodice, Spilosoma virginica, apple borer 

 {Penthina pomonelld), and Harrisina Americana; 

 besides the earth worm {L%mbricus terrestris). 



