TETANOCERA. 119 



small clear spots on the anterior side of the second longitudinal 

 vein ; the remainder of the coarse reticulation is little connected, 

 and formed of rather sparse small blackish spots; the small trans- 

 verse vein is a little before the middle of the discal cell ; the pos- 

 terior transverse vein is distinguished by its being perfectly straight 

 and perpendicular. 



Hah. Illinois. (Osten-Sacken.) 



lO. T. saratogensis Fitch. % and £ . — Seta antennarum albo-plu- 

 mata ; thorax vittatus ; alae confertim striato-reticulatse inargine antico 

 late fusco-limbato, vena transversa posteriore flexuosa. 



Bristle of the antenna? plumose with white, thorax striped, wings striped 

 with gray and reticulated with darker dots, costal border having a broad, 

 blackish-brown margin, posterior transverse vein undulating. Long, 

 corp. 0.2—0.22. Long. al. 0.18—0.20. 



Sy^7. Tetanocera saratogensis Fitch, Report I, 68. — Loew, "Wien. Ent. Mo- 

 natsch. Ill, 296. 



This species, which is readily distinguished from all the N. A. 

 species known to me by the costal border of its wings having a 

 broad blackish- brown margin reaching as far as the second longitu- 

 dinal vein, has been accurately described by Dr. A. Fitch in the 

 above quoted place. It strikingly resembles the European Tet. 

 pratorum Fall. After examining a great number of specimens of 

 the two species, I found it impossible to discover any constant differ- 

 ence in their structure ; but the brownish-black color of the costal 

 border of the wings as well as the spots along the longitudinal 

 veins in all the N. A. specimens reach farther towards the base of 

 the wing than is the case in any European one, besides, in the 

 former, the color of the club-like male genitals is very dark, whereas 

 in the latter it is much lighter and almost yellowish. Whether 

 the two hoary stripes of the thorax really are more distant in Tet. 

 saratogensis, as they seem to be, I dare not pronounce with cer- 

 tainty, since some specimens from Northern Europe approach in 

 this respect the American ones. Moreover the space between 

 those stripes in ET. A. specimens as well as in European ones, is 

 sometimes altogether yellow, sometimes bordered with distinct 

 brown longitudinal lines, sometimes entirely brown. 



Hab. Middle States. (Osten-Sacken.) 



Mr. Loew referring to Dr. Fitch's description, without giving one of his 

 own, I reproduce the former here. — O. S. 



