1864.] 



400 



And lastly, I have in iMi4 found a 9 Dlaphrromrra in a place over- 

 oTOwn by weeds beneath the buughs of two isolated ash-trees, which 

 differs remarkably from some dozen 9 D. fcmordta Say which I have 

 examined, in the caudal appendages (cerci) being nearly four times 

 as long, and the supraanal plate larger and more elongated, and 

 also in the anterior femora being rather incrassated than laterally 

 dilated into a thin plate, in their dilatation being considerably less and 



vex curve, without varying in width, and extends over the head in the form of 

 an elevated oblong, which proje>!ts forwards nearly in a rectangle with its apex 

 obtuse, and is carinate longitudinally above. From the hind margin of this 

 oblong extend backwards the three normal carina, the outer ones gently sinu- 

 ate, but the general course of the three nearly parallel. The spaces between 

 these carinee, and outside them as far as the thin plate of the prothorax, are 

 blackish and rugose as far back as the insertion of the elytra ; the triangular 

 space behind that insertion being covered with large, dilated confluent punc- 

 tures, having much the appearance of the small suborbicular cells of the elytra. 

 Beneath, except the lateral plates of the prothorax and the carinate edges of 

 the central pieces of the sternum, blackish. Elytra hyaline on their terminal 

 half, but with the cell-veins there pale yellowish brow 1 and occasionally to- 

 wards the tip of the wing a few of them irregularly blackish; the large carinate 

 cell at their base extending nearly halfway to the tip, and terminating in an 

 angle of 60° — 80°, from which there extends a simple sinuate carina nearly to 

 the tip. A little on the basal side of the middle of the elytrum and extending 

 halfway to its base, the veins outside the large carinate cell are irregularly 

 and variably blackened more or less, so as often to present the appearance of 



1 3 transverse blackish lines: and occasionally the blackness extends across 



the entire elytrum. so as to appear like a blackish fascia. Legs with the tarsi, 

 or sometime only their tips, blackish. — Length about .15 inch. Eleven speci- 

 mens from basswood, three from wild cherry. Very abundant near Rock Isl- 

 and on the basswood. 



Tingis amorphge. n. sp. Differs from the above only in the large, basal, cari- 

 nate cell of the elytra terminating behind nearly in a rectangle instead of an 

 angle of 60° — 80°, and in the veins of the wings, both those on the basal side of 

 the middle and those at the tip, being on the average of specimens much more 

 deeply stained with black, though individuals of the two species occur which 

 are identical in this character. — Length about .15 inch. Eighteen specimens 

 on Amorpha fruticosa. 



I possess in this genus T.miiticaSay, plexus&a.y,oblongaSa,y, juglandis? Fitch, 

 and eight or nine other species, most of which are probably undescribed. Say 

 gives the length of T. arcuata as nearly three-tenths of an inch, but this is pro- 

 bably a typographical error for three-twentieths. (Compare Fitch I^. Y. Rep. 

 II. ^ 193.) Conversely in Say's Works (II. p. 1.31) the length of Copris anaglyp- 

 ticus is given as 7-20 instead of 7-10 inch. 



