116 THE CANADIAN ENTOMOLOGIST. 



separated from that of the opposite lobe by a V-shaped space, and 

 meeting the straight anterior margin at a right angle. Cerci very nearly 

 as long as the breadth of the hind femora, tapering from a fairly stout 

 base. Ovipositor about three-"fifth3 the length of the hind femora, nearly 

 straight, tapering, especially in the proximal half, the basal third consider- 

 ably swollen ; apex upturned and sharply pointed. Teeth of inner valves 

 five, sharp, nearly equidistant. 



General colour pale reddish-brown. Two broad shining black bands 

 above, fading into pale yellowish-brown half way down the sides of the 

 thorax, and separated by a broad mesial band of orange or reddish-brown, 

 which passes along the thorax to the first or second abdominal segments, 

 where it begins to be broken up into small spots. These spots are small 

 and few on the pronotum, but become larger and more numerous 

 posteriorly, forming tolerably regular transverse rows on the abdominal 

 segments, there being a single row for each segment. The dark colour 

 often becomes more grayish and less shiny on the abdominal segments. 

 Eyes deep black ; antennye brownish, annulate with pale yellowish. Face, 

 under side of body, and legs, pale reddish or yellowish brown. Fore and 

 middle femora infuscated apically ; hind femora pale reddish-brown, 

 mottled above with darker brown, the usual scalariform markings rather 

 pale, much less distinct than in C. maailattis or terrestris. Hind tibiae 

 and tarsi pale yellowish, the spurs deep black at base, pale apically. 

 Cerci reddish brown, infuscated apically. Ovipositor shining reddish- 

 brown. 



Measurements: Length of body, (^ 9, 14 mm.; of pronotum, X 

 4.1 mm., 9 4-3 mm.; of fore femora, $ $, 5.8 mm.; of hind femora, 

 J 13.5 mm., 9 14 mm.; of hind tibire, r^ 9 , 148 mm.; of ovipositor 

 9 mm. 



Ten males, 10 females. Niagara Glen, Out., Aug. iS, 1904; 

 Toronto, .^ug. 5, 1904; De Grassi Pt , Lake Simcoe, July T3-r5, 1901, 

 Sept. 7, 1902, July 18, 19, 1904; I^ake iMuskoka (small island) .'Uig. 27, 

 1899; Ragged Lake, Algonquin Park, Aug. 17, 1903. 



This species is most closely related to C. /atcns, Scudd., although 



differing greatly from that species in the character of the spines on thj 



under side of the hind femora of the male, the latter being also much 



stouter in latens. It closely approaches iatens, however, in all other 

 resi)ects, including the peculiar structure of the . male genitalia. The 

 ovii)ositor in /atefis is less swollen at base. Iv. colour and markings the 

 two siJecies are nearly identical, but in size latens is much the larger. 



