REPORT OF THE STATE ENTOMOLOGIST I907 213 



Stones of the bottom, a few larvae of this species. They were not 

 reared, but the abundance of adults issuing in the tent, and the 

 great likeness of the larva to that of the closely allied genus 

 Dicranota, as described and figured by Miall,^ leave scarcely a pos- 

 sible doubt as to its identity. 



The larva [fig. 19^] measures in length 8-9 mm, with the caudal 

 processes i mm additional. Diameter i mm. The body is cylin- 

 dric and tapers forward on the thoracic segments, which while 

 decreasing in diameter increase in length, the first segment, 

 within which the head is wholly retracted, being twice the length 

 of the third. At the base of the first segment is a narrow 

 interpolated ring, which, in Dicranota Miall interpreted" as 

 a posterior division of the basal abdominal segment. So in- 

 terpreted, the abdomen consists of 9 segments of which the 

 first two and the last one are legless, while the intervening 

 five segments bear prolegs. These prolegs are fleshy, retrac- 

 tile, unpaired and widely separated on the mid ventral line, 

 and each bears a circlet of outcurved booklets at its tip, and 

 diminishing series of lesser booklets, graduating into the 

 scurfy pubescence of the general integument, back from the tip. 



The skin is of a dirty whitish or yellowish white color, and 

 its appressed pubescence is roached up into two tranverse lines 

 on each of the leg-bearing segments (which thus, and by reason 

 of a slight constriction between these ridges of pubescence, 

 is made to appear double) and into single lines on the other 

 segments. The abdomen tapers abruptly upon the eighth seg- 

 ment to the end and bears at its tip two long, fleshy filaments 

 that are obtusely pointed and bear a few short, terminal hairs. 

 Above the bases of these filaments is the imperfectly developed 

 respiratory disk. The two bare spiracles are surrounded by 

 roundly curved, raised lines of pubescence, and separated by 

 a median groove, upon which, as a hinge line, apparently they 

 may be folded up together. I take it that these spiracles are 

 exposed in air, and closed together in water, and that four anal 

 tracheal gills that may be seen projecting by their tips from 

 the anus, are then protruded for aquatic respiration. This is 

 a common arrangement for amphibious life in crane fly larvae. 

 However, I merely collected these, and did not study their 

 habits. 



' Miall, L. C. 



