322 NEW YORK STATE MUSEUM 



and mid ungues uneven, one claw bidentate. one unidentate, 

 posterior simple. Posterior legs enormously prolonged; tarsal 

 segments extremely attenuate and fragile. 



Described from a freshly bred specimen July 14. 1904. 



Larva. Antenna rather stout, curved, with a thick, well 

 developed tuft of plumose hairs at its basal third and a pair of 

 long, slender spines at the apical fifth, in addition to one long 

 spine and two rudimentary, tapering processes at the apex. 

 Labial plate subtriangular. with about 29 rather fine teeth, basal 

 portion with distinct, rather coarse reticulations. Thoracic and 

 anterior abdominal segments clothed with numerous stout, 

 black, plumose hairs, the other abdominal segments bearing 

 slightly compound, weakly plumose hairs. In addition, there are 

 smaller grouj)S of compound hairs. The comb consists of a tri- 

 angular patch of about GO scales arranged in five irregular rows, 

 each scale with a brown, basal, somewhat spatulate enlargement 

 and terminated by an expanded, nearly colorless tip bearing a 

 series of rather fine subequal. apical spines, smaller spines extend 

 on each side to the extreme base. Air tube about four times as 

 long as wide, slightly inflated and with two rows .of pecten at 

 the basal fifth, each consisting of about 14 closely set teeth bear- 

 ing at their bases one or two conspicuous processes; pecten. 

 extended by a well marked row of about 16 simple bristles reach- 

 ing to the apical fifth of the air tube. There is a posterior pair 

 of compound, plumose hairs at the base of the air tube. Ventral 

 tuft short and consisting of about 14 well developed, compound 

 hairs attached to the barred area, with three anterior. Dor&al 

 tuft composed of a single, stout, compound hair and a pair of 

 very long, slender, simple hairs. 



Cnlex ma^pennis n. sp. 



PI. S. 22. 23. 37. 45. 51. 55. fig. 3. 4 : 3 : 1 ; 2; : 3 : 1 : 2 respectively 



Larvae of this large and interesting species were taken in a 

 shaded pool at Sodus Point X. Y.. Aug. 25. adults emerging the 

 29th, The female is remarkable on accoimt of her lai*ge wings 

 with broadlv rounded anal lobes. 



