THE CANADIAN ENTOMOLOGIST. 



Of these families, representatives of the Geophilid?e and Soniphilida^ 

 alone were secured in the region covered by this paper. However, the 

 Schendylidae is represented, Escaryus urhicus (Meinert), having been 

 taken in Minnesota, and the same species having been found by the writer 

 to be quite common in New York State. The family Himantariidse is 

 represented in Texas and Mississippi by a species of Haplophilus, and by 

 at least one of the genus Gosiphilus, G. laticep s {Wood). These genera 

 may be found to range into the present section. The family Sogonidse is 

 at present known to be distributed in Texas {Timpina texana Chamberlin, 

 a form with but five joints to the anal legs), and in South Carolina and 

 Tennessee {Sogo?ia mijiima Chamberlin). On the Pacific Coast occur 

 several families not found east of tlie Rockies. 



Family Geophilidae. 



Subfamily Geophilirœ. 



Genus Geophilus Leach. 



Geophilus rubens Say. 



Syn. Geophilus cephalicus Wood. 

 Geophilus lœvis Wood. 

 Geophilus okolonae Bollman. 

 Localities. — DeWitt, Mongona and Boone, Iowa ; Franklin Grove, 

 111.; Saunder's, Mich. 



This is a very common species in Indiana, Ohio and more Eastern 

 States. The form described by Bollman from Arkansas agrees perfectly 

 with this species, excepting that the number of pairs of legs is higher than 

 usual in northern specimens. This, however, is in line with a tendency 

 shown by many other species for the number of legs to show an increase 

 in going from the north to the south or from high elevations to low. It 

 is one of the commonest forms in this district. California specimens also 

 frequently have a larger number of legs. 



Genus Arenophilus Chamberlin. 

 Arenophilus bipuncticeps (Wood). 



Syn. Geophilus attenuatus Bollman (but not certainly of Say). 

 Geophilus georgianus and latro Meinert. 

 Schendyla perforata McNeill. 

 Localities. — Mongona, Boone, DeWitt, Tama, Marshalltown, Iowa ; 

 Fremont, Neb.; Peoria, III.; Janesville, Wis. 



This is by far the most abundant species. It ranges as a common 

 form through the greater part of the United States in and east of the 



