LANCASTER COUNTY. 475 



when caught, h throws out a jet of vapor with a slight explosion, 



Scaritessubterraneus; an inch in length, black, with a strong 

 p^ir of jaws, head and thorax as long as the hinder part, and 

 somewhat wider — lives under logs. 



Calosoma scrutator ; length 1 1-4 inches, head black, thorax 

 (pronotum) purple, margined with golden, elytra bright 

 green, with a golden margin. 



Calosoma calidum ; length of the preceding, but much 

 narrower, black, elytra striate, with numerous golden 

 punctures. 



Agonum octopunctatum ; length 3-10 inches, active^ green, 

 with four impressed punctures arranged in a line upon the in- 

 ner margin of each elytron. 



Anorops obliquatus; half an inch long, short oval, dull black, 

 except a small orange spot at the inner base of the elytra, 

 punctured longitudinally — found in decayed wood. 



Diaperis maculata ; quarter of an inch long, oblong hemis- 

 pherical, elytra light yellowish brown, with two black spots 

 upon each, near the base, and a larger irregular spot towards 

 the extremity, and upon the outer margin, head and thorax. 

 black. 



Coprobius volvens ; (tumble-bug) is commonly seen in 

 pairs rolling a ball of dung. A much larger insect, an inch 

 long, black with the elytra coarsely furrowed, is named Copris 

 Carolina, and is proportionally shorter than the Scarabaeus 

 Jamaicensis, which is tinged with brown, the head of the male 

 being armed with a long recurved horn ; a small species quar- 

 ter of an inch long. 



Onthophagus Janus; has two straight, upright horns upon 

 the head ; it is found in rotten fungi. 



Pelidnota punctata; is an inch long, of a brownish yellow, 

 each elytron with three black spots, a similar spot on each 

 side of the thorax ; found upon grape vines. Nearly allied, 

 but without spots, is the Pelidnota lanigera, of a fine lemon 

 yellow color. 



Macrodactyla subspinosa ; is the abundant and destructive 

 rosebug or cherrybug. 



Crioceris trilineata; a common garden insect, quarter of an 

 inch long, yellow, with three black, conspicuous, longitudinal 

 lines upon the elytra, and two black dots upon the pronotum. 



