46 Annals Entomological Society of America [Vol. IV, 



Localities. — Byram, Fernwood, Watervalley, Canton, Holly 

 Springs, Grenada, Jackson, Biloxi (type locality), Longbeach 

 and Ocean Springs, Miss.; Pensacola, Fla. (clarus McNeil); 

 Jackson and Birmingham, Ala.; Brown's Summit, N. C; 

 Crandall, Marksville and Luray, Va. (latzeli, seq. Meinert and 

 Bollman.) 



There is marked variation in this species in the development 

 of the claws of the penult legs. There is a distinct anterior 

 or third claw in the specimens from some localities (such as 

 Holly Springs, Fernwood, Longbeach, Miss., and Jackson, Ala., 

 etc.) which seems to be especially well developed in younger 

 or smaller specimens (cf. clarus McNeil) but which is readily 

 broken off and tends in older specimens to become relatively 

 reduced, obsolete or absent. Because of this it would seem 

 justifiable to regard clarus as having been based upon small 

 specimens of this species since no other difference appears in 

 the description given. Specimens from North Carolina and 

 Virginia seem to show a tendency for the coxal pores to be 

 round or oval rather than strongly transverse more frequently 

 than in specimens from the Gulf region; but there are no con- 

 stant differences in this respect and both extremes with inter- 

 mediates are to be found in the more southern localities. Hence, 

 no grounds in this direction appear why L. latzeli should be 

 kept apart from vorax. The longitudinal sulcus which Meinert 

 mentions as occurring on the ventral surface of the third and 

 fourth joints of the anal legs in latzeli is present in all specimens 

 of vorax. The sulcation on the mesal surface of the tarsal 

 joints of anal and penult legs mentioned by Bollman as dis- 

 tinctive of his tyrannus is present in most specimens of vorax. 

 The articles of the antennae vary greatly in number with the 

 size of the individual, from twenty-six or twenty-seven in young 

 specimens fourteen or fifteen millimeters in length to above 

 forty in the largest adults. The average number in medium 

 size adults would seem to be about thirty-five or thirty-six. 



34. Lithobius underwoodi Bollman. 



L888. Lith. il>ius underwoodi, Bollman, Proc. U. S. X. M., XI, p. 350. 



Localities. — Maplesville, Selma, Morgan, Thomasville, Jack- 

 son, and Anniston, Ala.; Atlanta, Tallulah Falls, (and Macon, 

 type locality, seq. Bollman), Ga. ; Landrum and Seneca, S. C. 



Especially abundant in Alabama where it seems to be the 

 most common of the larger species. 



