412 bulletin: museum of comparative zoology. 



Geophilus rubens Say. 

 Journ. Acad. nat. sci. Phil., 1821, 2, p. 21. 



Geophilus cephalicus Wood, Journ. Acad. nat. sci. Phil. 1862, ser. 2, 

 6, p. 44. 



Geophilus laevis Wood, ibid. Trans. Amer. philos. soc, 1865, new ser., 

 13, p. 180. 



Strigamia rubens Wood, Trans. Amer. philos. soc, 1865, new ser., 13, 

 p. 182. 



Localities. — Virginia, near Washington, D. C; Raleigh, N. C. 

 (seq. Brolemann). 



Contrary to the usual supposition, this species, so abundant in the 

 more northern states, is very rare in the greater part of the South, 

 or, rather, wholly absent. 



Geophilus mordax Meinert. 

 Proc. Amer. philos. soc, 1886, 23, p. 218. 



Geophilus salemensis Bollman, Entom. Americana, 1887, 3, p. 82. 

 Geophilus virginiensis Bollman, Proc U. S. N. M., 1889, 11, p. 346. 

 Geophilus louisianae Brolemann, Ann. Soc. ent. France, 1896, 65, 

 p. 55. 



Geophilus atopleurus Chamberlin, Ann. Ent. soc. America, 1909, 2, 



p. 181. 



Localities. — Watervalley, Holly Springs, Grenada, Gulfport 

 and Longbeach, Miss.; Louisiana; Maplesville and Thomasville, Ala. ; 

 Raleigh, Marion, Salisbury, and Hot Springs, N. C. ; Unaka Springs, 

 Tenn.; Virginia, near Washington, D. C. 



This is a common and conspicuous species in the Southern States, 

 where it appears to replace G. rubens Say of the states farther north, 

 a species probably very closely related. The present species is subject 

 to considerable variation in size, coloration, and in the number and 

 arrangement of the pleural pores though the latter uniformly present 

 certain distinctive features. Typically, the individuals of this species 

 are in life distinctly red, the coloration being almost precisely that of 

 many or most Linotenias, such as L. fulva and L. bidens. Occasion- 

 ally the red is less dense, the color being pinkish or the more ordinary 

 yellowish brown. In alcohol the red color quickly fades. The 



