36 



NEW YORK STATE MUSEUM 



mens examined, as evidenced by the presence of recognizable re- 

 mains; the claw (fig.ll) or the curiously coiled malpighian 

 tubules, or the outer canine of the mandible (fig.l3). Nymphs 

 of some species of Oaenis had been eaten by four, and a 

 small platode and a very young nymph of C h i r o t e n e t e s 

 by a single specimen. 



Ameletus ludens sp. nov. 



The genus A m e 1 e t u s has not hitherto been known east- 

 ward of the Rocky mountains. It is represented in the State 

 Museum collection at Albany by a number of nymphs and two 



Fig. 5 Ameletus ludens sp. nov., female subiraago; u, end of abdomen below, 

 showing truncate apical lobe of the 9th sternum ; v, fore tibia and tarsus 



bred female siibimagos taken by Mr. D. B. Young at Newport, 

 N. Y. on the 22d of May 1002. They were found in the head- 

 waters of a small, swift stream, elevation about 900 feet, in the 

 Hasenclever hills, a spur of the Adirondacks. 



Female subimago. Length, 9 mm.; setae, f> mm. additional; 

 wing, S mm. Color obscure 'brownish, paler on the sutures and 

 below; antennae darker toward the tip; incomplete dark -brownish 

 rings about the ocelli ; on the vertex a pair of longitudinal bla/ck- 

 ish marks, confluent in the middle ; a broad median whitish tra^ct 

 upon the mesothorax, produced behind and dilated at the sides; 

 subjipical paler bands on the femora, the tips again darker; 

 wings uniformly pale fumose, the venation is shown in pl.8, fig.9; 

 brown marks on the ventral ganglia, becoming more evident 

 posteriorly. 



