THE CANADIAN ENTOMOLOGIST. 



11 



Sy?iofisis of larval habits of the Acalyptrate Muse idee. 



'Coprophagous species or dung-feeders. 



t-, , In decaying fruits 



Feeders 



on decaying 



Scavengers. 



vegetable 

 matter. 



Feeding 

 in fluids. 



Feeders on animal matter 



Phytophagic 

 species. 



Entomophagic 



species, 



or group with a 



parasitic tendency. 



In decaying wood and under bark of trees 

 In decaying plants and leaves. 

 In decaying roots and tubers. 

 In fungi. 



J Salt or alkaline water and mud. 



| Urine. 



I Vinegar. 



I Sap from wounds of trees. 



( Cheese. 

 * | Animal fats. 



Gall makers. 



! Infesting soft fruits. 

 Living in pods, seeds and berries. 

 Living in flower heads. 



T , . (In water plants. 



Leaf miners. < T c ,. r c . , , A , , 



\ In foliage of trees and land plants. 



Feeders in stems of plants and holms of grasses. 



Root feeders. 



Feeding in seaweed. 



„ -.->( In scales. 

 Parasites ? < T , t ,. 



I In plant lice. 



C On scale insects. 



Pseudo parasites ? < On plant lice. 



(^ On larvae. 



llnquilines in bees' nests. 



Summary of larval habits. 



Fam. Cordylurid^e : 



Norellia spinimana ; larva found on an anthomyiid larva (Bremi). 

 Cleigastra apicalis ; larva in noctuid caterpillar (Boie). CI. suisterci ; 



bred from larvae in swine dung (Townsend, Can. Ent.) 

 Scatophaga ; larvae in dung and human excrement, also in water (Sch.J. 



Fam. Thyreophorid.« : 



Thyreophora ; larvae found in anatomical preparations (Rob. Desv.) 



Fam. Helomyzid^; : 



Helomyza ; larvae in fungi and truffles (VVestw.) 



Leria serrata ; larvae in dung (Bremi), in fungi (L. Dufour). 



Thelida; a species on bat dung (Rob. Desv.) 



