50 ENTOMOLOGICAL NEWS [Feb., 'll 



ferns and caladiums. The stream is extremely pretty and 

 ought to be a favorite haunt of many forest-loving species, 

 but the day was very dark with intervals of rain and we saw 

 no adult dragonflies. After long hunting among the fallen 

 leaves and stones of the brook, P. found a larva with extra 

 gills along the sides of the abdomen. This we suspect may be 

 the larva of Cora, a point still to be determined however." 



The diary for April 29, 1910, also at Juan Vinas, reads: 

 "To-day was exceedingly dark and at times with very thick 

 mist, altho' there was no heavy rain. While A. wrote in the 

 morning, P. collected some food for some living dragon-larvae 

 gathered here. While so doing he found another and some- 

 what larger larva of the sort which we suspect to belong to 

 the genus Cora. It is remarkable in having attached to each 

 side of some of the forward abdominal segments a finger-like 

 gill, a peculiarity possessed by no other American dragon-larva 

 as far as known. Our chief interest in larva-raising now centres 

 on these two individuals." 



Still at Juan Vinas, the diary of May 2, 1910, records: 

 "With a lunch, rubber poncho and umbrella, the latter two for 

 investigating the farther waterfall, I set out for that spot, 

 examining the ditch along the [railroad] tracks which carries 

 the water from this fall. In going and coming, I found in 

 all three of the supposed Cora larvae in this outflow. Those 

 found last week lacked the caudal gills which, altho' forming 

 part of the proper' equipment of a whole suborder of dragonfly 

 larvae, seem to be of indifferent use and value, for many larvae 

 lose them by accident or by the bite of a brother or an enemy 

 and yet pass their larval existence as tranquilly and accomplish 

 their transformations as successfully as their brethren. * * * 

 The three larvae found to-day have their caudal, as well as 

 their lateral, abdominal gills, which latter have already been 

 briefly mentioned. The three caudal gills are very odd-looking. 

 They appear as if cut off straight across the tip, instead of 

 tapering as usual, the straight edge [i c. tip] then scalloped 

 into three points. Each gill is much inflated and, as the gills 



