HANCOCK 83 



(Ball); also recorded from Montreal, Prince Arthur, Sudbury, 

 Toronto, De Grassi, Pt. Ont., N. Red River, Englewood, 

 S. D., Lincoln, Nebr., and Moline, 111. 



A series of forty specimens from the points mentioned is 

 in the author's collection. 



Of this species Morse writes: "Allied to T. oriiatus, from 

 which it differs in its more robust form with wider and gener- 

 ally more ]3rojecting vertex, slightly more prominent mid- 

 carina, in the generally more abruptly forked and wider facial 

 costa, and notably in the enlarged middle femora; the expanded 

 portion of the latter in the male is nearly or quite one-half as 

 broad as long (in ornatus seldom more than one-third), in the 

 female the difference is less noticeable. The humeral angles 

 of the pronotum are more pronounced and the mid-carina is a 

 little more elevated in its anterior portion. Dimorphism in 

 wing and pronotum length occurs, the specimens (and sexes) 

 before me (iq $$, 27 $5) being about equally divided between 

 the two forms, with a few of intermediate character. For the 

 short-winged form (Plate IV., Figs, i-ia.) the trinominal 

 T. h. abhrcviatns may be used." 



Measurements: Total, /, 8.3-12.4 mm.; 5, 9-13 mm.: 

 pronot., ,^, 8.2-1 1 mm.; 5, 8-12 mm.; post, fem., $, 5-5-5 

 mm.; 5, 5.5-6 mm. Width of shoulders, $, 2.6-5 mm-; 

 5, 2.8-3.5 mm.; antennae, 3-3.5 mm. 



In long-winged examples the pronotum and wings pass the 

 posterior femora from three to four millimeters. 



Tettix hancocki, Morse, J. N. Y. Ent. Soc, VII., 200, 

 201 (1899); Scudd., Cat. Orth. U. S., 16 (1900); Scudd., 

 Index N. Am. Orth., 319 (1901). 



TETTIX CRASSUS, MORSE. 



A variable and ver)' perplexing form of the ornatus group, 

 closely related to, and seemingly intermediate between, typical 

 ornatus, hancocki, and acadicus. It is distinguished from 

 ornatus by the more robust form with wider shoulders, wider 

 and more projecting vertex, and less prominent eyes; it lacks 

 the enlarged middle femora of liancocki, which it otherwise 



