KO.H24. REVISION OF THE VELASOPLISCUDDER. 281 



with fuscous dots of greater or less depth and distinctness throughout 

 the greater part of the discoidal area, but rarely to any considerable 

 extent or conspicuousuess beyond the middle; wings moderately broad, 

 hyaline, glistening, with fuscous veins and cross veins darkest apically 

 and anteriorly. Thoracic pleura piceous or blackish fuscous, the meta- 

 thoracic episterna with a mesial streak of flavous of greater or less 

 clarity. Fore and middle femora distinctly but not greatly tumid in 

 the male; hind femorai olivaceo- testaceous, more or less heavily and 

 very variably obscured or clouded with fuscous, the fuscous coloring 

 generally confined to the upper half, and above generally concentrated 

 in two fasciae, which sometimes extend partly in an oblique direction 

 on the outer face, but generally in a very obscure fashion, if at all, 

 while the whole under surface and at least the basal half of the inner 

 surface is more or less impure flavous, sometimes deepening, especially 

 beneath, to ferruginous or even carmine; hind tibiae normally red, 

 sometimes with a slight fuscous patellar spot, occasionally more or 

 less tinged with yellowish, very rarely pale green with a yellowish 

 tinge, the spines black nearly to their base, ten to thirteen, usually 

 eleven, in number in th.e outer series. Extremity of male abdomen 

 rather strongly clavate, well recurved, the supraanal plate clypeate, 

 strongly and rather abruptly contracted mesially. the apex subreet- 

 angulate, the lateral margins elevated, the apical portion more or less 

 cleflexed, the median sulcus rather large, not very deep, bounded by 

 moderate but rather abrupt walls, apically expanding and obsoles- 

 cent; furcula consisting of a pair of subparallel or sometimes feebly 

 divergent, tapering, subacuminate, apjcally well separated, more or 

 less feebly depressed fingers, falling a little short of the middle of the 

 supraanal plate, and except at extreme base lying on the outer side of 

 the ridges bounding its median sulcus; cerci rudely subfalciform, com- 

 pressed laminae, tapering considerably and rather rapidly from base to 

 middle, beyond that subequal but apically very obliquely truncate, so 

 that the upper angle is considerably produced but blunt, the whole 

 somewhat incurved and failing to reach the tip of the supraaual plate; 

 infracercal plates exceedingly broad at base, extending laterally far 

 beyond the sides of the cerci, as long as the supraanal plate; subgeni- 

 tal plate very short apically so as to be less than half the breadth of 

 the base, the lower margin straight, the lateral margin very sinuous, 

 the apical margin not elevated, strongly rounded, entire. 



Length of body, male, 23.5 mm., female, 24.5 mm.; antennae, male, 

 10 mm., female, 8.5 mm.; tegmina, male, 21.5 mm., female, 19.75 mm.; 

 hind femora, male, 13 mm., female, 14.25 mm. 



Five hundred and seven males, 556 females. Halifax, Nova Scotia, 

 H. Piers; Montreal, Canada, Caulfield; Grand Manan Island (Museum 

 Comparative Zoology) ; Eastport, Washington County, Maine, Yerrill 

 (same); Moosehead Lake, Maine; Norway, Oxford County, Maine, 

 Smith (Museum Comparative Zoology) ; Bridgton, Cumberland County, 



