NO. 1124. EE VISION OF THE HELASOPLISC UDDER. 219 



again as tbe densely and finely punctate nietazona. Prosterual spine 

 rather short, slightly appressed conical, blunt, erect, rather shorter 

 and stouter in the female than in the male; interspace between 

 mesosternal lobes nearly half as long again as broad (male) or trans- 

 verse, but much narrower than the lobes (female). Tegrnina broad 

 rounded-ovate, shorter than the pronotum, attiugent or subattingent, 

 feebly subangulate at apex, dark brownish fuscous. Fore and middle 

 femora a little tumid in- the male; hind femora ferrugineo-testaceous, 

 sometimes with an olivaceous tinge, often more or less infuscated on 

 the outer face, especially next the carinae, the geniculation infuscated, 

 sometimes almost black; hind tibiae rather deep red, often paler next 

 the base, with a feeble and narrow fuscous patellar annulus, the spines 

 black almost or quite to their base, ten to eleven in number in the outer 

 series. Extremity of male abdomen very feebly clavate, somewhat 

 recurved, the supraanal plate long subclypeate, the lateral margins 

 raised and slightly contracted mesially, the apex roundly subrectangu- 

 late, the median sulcus rather narrow, equal, percurrent, the bounding 

 ridges not very high, but moderately sharp; furcula consisting of a pair 

 of approximate, parallel, slight, cylindrical, tapering spines, projecting 

 over the submedian ridges of the supraanal plate by no more than the 

 length of the last dorsal segment; cerci rather long and slender, the 

 lower margin nearly straight, tapering in the proximal half to about 

 half its basal breadth, thereafter subequal, a little incurved and faintly 

 twisted, scarcely reaching the tip of the supraanal plate, well rounded 

 at tip; subgenital plate pyramidal, a little elongate and at tip sub- 

 tuberculate, the margins in one plane, as seen from above with a para- 

 bolic curve, entire. 



Length of body, male, 15.5 mm., female, 22 mm.; antennae, male, 

 6.25 mm., female, 7.25 mm.; tegmina, male, 3.25 mm., female, 4.25 mm.; 

 hind femora, male, 8.75 mm., female, 11 mm. 



Eighty-six males, 103 females. Speckled Mountain, Stoneham, 

 Oxford County, Maine, August 15, S. I. Smith; the same, August 18, 

 A. P. Morse (A. P. Morse; Museum Comparative Zoology; S. U. Scud- 

 der); Mount Sargent, Mount Desert Island, Maine, August; Kearsarge 

 Mountain, North Conway, Carroll County, New Hampshire, 2,000 to 

 3,251 feet, September 4 (A. P. Morse). It has also been repoited by 

 McNeill from Running Lake, Illinois. 



45. MELANOPLUS CANCRI, new species. 

 (Plate XIV, fig. 10.) 



Of small size, testaceous. Head not prominent, uniformly testaceous, 

 except in being darker above along the middle line in the male, and 

 with a narrow postocular black stripe; vertex gently tumid, scarcely 

 elevated above the pronotum, the interspace between the eyes hardly 

 as wide as (male) or scarcely half as wide again as (female) the first 

 antennal joint; fastigium steeply declivent, narrowly sulcate, at least 



