LANCASTER COUNTY. 475 



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



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

 pair 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, w^th 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 furrovvcd, is named Copris 

 Caroline^, and is proportionally shorter than the Scar-abaeus 

 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. 



