470 PROCEEDINGS OF THE ACADEMY OF [June, 



A male in the Blatchley Collection, bearing the same data as the 

 type, is here selected as the allotype. 



Description of Allotype. — Size smaller, proportions somewhat more 

 slender than in the female. The tegmina are translucent and when 

 in repose the dorsal fields are very narrowly hemi-ellipitical in 

 outline. Wings absent. 



Measurements (in millimeters). 



Fulton County, Ind. 

 Type. Allotype. Average of topotj'pes. 



9 cf 9 9 d'd' ^ 



Length of body 6.2 5.8 6 . 1 (5 . 9-6 . 4) 5 . 7 (5 . 2-6 . 2) 



Length of pronotum 1.4 1.2 1.5(1.3-1.6) 1.3(1.-1.5) 



Caudal width of pro- 

 notum 2. 1.9 2. (1.8-2.1) 1.9(1.6-2.1) 



Length of tegmen 2.5 4. 2.4(2.1-2.8) 3.9(3.8-4.) 



Length of caudal femur 4.8 4.6 4.6(4.-4.9) 4.6(4.2-5.) 



Greatest width of cau- 

 dal femur 1.6 1.6 1 .7 (1 .4-1 .8) 1 .6 (1 .3-1 .7) 



Length of ovipositor 3.4 3.2(3.1-3.4) 



Ragged Lake, 

 Algonquin Park, Natiek, Dover, Wilmington, 

 Ont. Mass. Mass. N. C. 



^9 cT 9 cf 9 cT' 



Length of body 6. 5.3 6.8 6.2 6.8 5.7 



Length of pronotum 1. 1. 1.6 1.4 1.9 1.4 



Caudal width of pro- 

 notum 1.8 1.6 1.9 1.9 2.4 2. 



Length of tegmen 2.7 3.4 3.2 3.7 3.1 3.9 



Length of caudal femur .. 4.1 3.9 4.6 4.8 5.4 4.8 

 Greatest width of cau- 

 dal femur 1.3 1.4 1.7 1.7 2.1 1.8 



Length of ovipositor 3.6 3.7 3.8 



The specimens from Ontario are the smallest before us, while those 

 from North Carolina are the largest. Additional material at hand 

 bears out this evidence that the species increases in size very gradually 

 from north to south over its range. Comparatively little variation 

 IS shown, however, in the present species. 



Color Notes. — The types here described are of the same coloration 

 as the majority of topotypic specimens before us. The head, pro- 

 notum, and limbs are solid Vandyke brown. Maxillary palpi Vandyke 

 brown with the exception of the terminal joint which is wholly clove 



