xxxii, '21] ENTOMOUK.ICAI, NKWS 159 



AN IMPORTANT NEW WORK ox AMERICAN CADDISWORMS. 



The publication in a new place of a very important entomological 

 paper needs, perhaps, to be called to the attention of entomologists, 

 especially of those who are interested in aquatic inserts. Dr. J. T. 

 Lloyd, of Cincinnati, formerly Instructor in Limnology in Cornell Uni- 

 versity, well known for his excellent short papers on the Biology of 

 Trichoptera, has just published the collected results of his many years' 

 work upon this group in a paper of 124 pages, containing more than 

 200 separate text figures. Its title is "The Biology of North American 

 Caddis Fly Larvae," and it constitutes Bulletin 21 of the Lloyd Library, 

 of Cincinnati. 



After an excellent introduction of 13 pages, which includes tables for 

 the recognition of the thirteen North American families of the order, 

 the families are dealt with severally. There is a concise account of the 

 biology of each, followed by a statement of the habits and characters 

 of genera and species, with adequate and excellent illustrations. A 

 good idea of the range and completeness of the work done by Dr. 

 Lloyd on the Ithaca fauna is furnished by a bare list of the life histories 

 treated : 



Phryganeidae Brachycentrus 1 spp. 



Neuronia 3 spp. Calamoceratidae 



Phryganea 3 " Ganonema 1 



Limnophilidae Odontoceridae 



Glyphotoelius 1 " Psilotreta 1 " 



Limnophilus 3 Leptoceridae 



Arctoecia 1 Leptocerus 1 



Astenophylax 1 Mystacides . \ 1 



Pycnopsyche 1 Triaenodes 1 



Platyphylax 1 " Setodes 1 " 



Halesus 1 Molannidae 



Platycentropus 1 Molanna 1 



Chilostigma 1 Ryacophilidae 



Neophylax 2 Ryacophila 2 



Sericostomatidae Agapetus 1 



Helicopsyche 1 Glossosoma 1 



Goera 1 " 



Total 33 " 



Resides these there is a summarized account of the families Hydro- 

 psychidae, Polycentropidae and Philopotomidae that have been dealt with 

 by Alice A. Noyes (in papers that arc as yet in part only in course of 

 publication). 



The Psychomyiidae and the family of micros, 1 1 \ <lropt ilidar, 

 remain in America practically untouched. 



