235 



ventral segment brown at least on its disc. Eyes black with a fulvous 

 border. Antennae brown. Elytra whitish-subhyaline, nervures distinct, 

 concolorous. Wings white the nervures brown at apex. In the females the 

 median line of the oviduct and pygofers is testaceous, or pale j-ellow in one 

 example. Length about 3^ m. m. 



In this species the front is rather wide especially in the female, and the 

 black marginal line about the fovae is quite characteristic. 



New York and New Jersey. Described from several examples taken 

 by Prof. J. B. Smith at Anglesea, N. J., May 2Sth, and near New York City 

 and at Ravenswood, N. Y., Aug. 23th, iSgo, by Mr. E. B. Southwick. 



MEGAMELUS DAVISI, n. sp. 



Near to M. Piceous but smaller and more slender. 



Macropterous form: Piceous black. Vertex with the lateral carina; at 

 base and a lozenge-shaped mark on the disc anteriorly, including a black 

 point, pale. Sides, carin^e, and narrow hind edge of the pronotum, and 

 hind edge of the mesonotum, marked more or less with pale; the lateral 

 carimc of the mesonotum and sometimes the median, marked with fulvous. 

 Face pale; front and clypeus with a black line on either side; a spot below 

 the antenna; another anterior to, and a smaller one above the eye, brown. 

 Basal joint of the antennae with a brown spot beneath which may extend on 

 to the base of the succeeding joint. Abdomen with some fulvous marks 

 beneath and on the basal segments of the tergum. Breast pale, varied with 

 piceous on the disc of the pleural pieces. Legs pale, tibite more or less 

 distinctly twice-banded and the femora feebly lineated with brown; spur 

 white, very large and foliaceous, oblong, obtuse and brownish at apex, its 

 length less than twice its width. Elytra whitish, somewhat clouded on the 

 clavus ; nervures pale, distinct, the costal and commissural darker ; base of 

 the clavus and a line at its apex black. 



Aperture of the pygofers of the male broad, the usual ventral sinus 

 shallow, nearly filled by two siout teeth which become somewhat incurved 

 at apex ; the edges of the dorsal pieces touched with yellowish below the 

 short anal tube. 



A brachypterous male differs in being mostly pale beneath with the 

 black longitudmal line on either side of the front and clypeus distinct; disc 

 of the pro- and mesonotum between the lateral carina; pale yellow with two 

 black points behind the vertex. Tergum, excepting segments four and five, 

 largely pale yellow. Elytra covering the second abdominal segment, trun- 

 cated behind, black with pale nervures. The very young are whitish marked 

 more or less with black on either side of the dorsum and with two brown 

 lines on the front. Length to tip of the elytra 3j^ m. m. 



Michigan. Received from Mr. G. C. Davis ro whom this pretty species 

 is dedicated and who reports it as abundant on water lilies. This is an 

 interesting insect easily distinguishable from all its allies by its large foli- 

 aceous spurs at the base of the hind tarsi. It is intermediate in form and 

 size between M. piceous and M. marginatus but in coloration it is much 

 nearer piceous although the elytra are white and want the setigerous gran- 



