114 THE CANADIAN ENTOMOLOGIST, 



of the males. The former, especially, varies greatly in shape, but, 

 strangely enough, has been quite ignored by entomologists. 



Key to males of the species of Ceuthophilus found in Ontario : 

 A. Hind margin of 9th dorsal segment of abdomen distinctly emargin- 



ate ; hind tibise arcuate in their basal third i. inaculatus ^ 



AA. Hind margin of 9th dorsal segment entire, rounded. Hind tibiae 

 straight. 

 B. Outer carina of hind femora with less than 20 spines, 

 usually 12 or 13, well separated from one 



another 2. pallidipes, n. sp. 



BB. Outer carina of hind femora with -':5-30 small teeth, crowded 

 together over two-thirds or more of its length. 



C. Hind femora as long as or barely shorter than hind 

 tibiae, and not more than 3 times as long as 

 broad ; fore femora but little longer than 



pronotum 3. neglectiis. 



CC. Hind femora distinctly shorter (about one-tenth) 

 than hind tibite, 2>y^ times as long as broad ; 

 fore femora at least a third longer than 



pronotum 4. terrestris. 



23. Ceuthophilus maculatus. Say. — The Spotted Stone Cricket 

 Rhaphidophora ?iiaailata (Say, MS.), Harris, Ins. Inj. Veg., 1841, 

 126. 



Phalangopsis maadata, Harr., Ins. Inj. Veg., 1862, 155. 

 Ceuthophilus maculatus, Scudd., Bosr. Journ. Nat. Hist., VII., 

 1862, 434. 



Measurements : Length of body, ^ 14 mm., 9 16 mm.; of 

 pronotum, $ 4.6 mm., 9 4-8 mm.; of anterior femora, $ 6.6 mm., $ 

 5.8 mm.; of hind femora, $ 15.5 mm., 9 15 mm.; of hind tibife, ^ 

 16 mm., 9 15-3 mm.; of ovipositor, 9.3 mm. 



On July I St, 1903, while collecMng at Niagara Glen, I found a 

 number of Ceuthophili under two or three large flat stones in a dry open 

 wood, just above the Glen. They were nearly all immature, but three 

 males appear to be full-grown, or nearly so, and are easily recognizable as 

 maculatus. This is the only time I have come across this species in 

 Ontario, although I have found it common in certain parts of Quebec. It 

 is doubtless, however, pretty generally distributed over the Province, 

 wherever suitable conditions for its existence obtain. 



