170 The Ohio Journal of Science [Vol. XXI, No. 5^ 



Culex territans Walk. This remaining species of mosquito 

 found was rather scarce. Only a fifth as many larvae were 

 obtained as for the preceding species. Dr. Dyar wrote me that 

 "it is wholly innocuous, confining its attention to frogs." 



Family Chironomidce. 



The midges constitute a very important family which was 

 represented by a very considerable number of kinds in Mirror 

 Lake. It must be noted though, that the number of specimens 

 secured large as it is, very likely gives relatively a very inad- 

 equate idea of the total midge fauna (as was true likewise of 

 the small Annelid worms) because so much of the mud bottom 

 of the large pond was not at all investigated. As the collections 

 stand the vast majority of the larvae were secured from the 

 small pond. Undoubtedly midge larvae formed an important 

 article of food of some Mirror Lake fishes. 



A number of bright red larvae, the well known bloodworms 

 were found in very shallow water, a few in fact in the clear, 

 shallow pool, station 17, in hardly more than an inch of water 

 and not buried in the mud. This bears out the fact, now gen- 

 erally well known (Malloch '15), and treated of especially in 

 work at Lake Mendota (Muttkowski '18) that bloodworms 

 are by no means exclusively bottom dwelling forms, as was so 

 long held. 



Adult midges w^ere not seen in the field and unfortunately 

 none reared in the laboratory, though several accidentally 

 emerged from material in an acquarium jar. Pupae were 

 scarce as compared with larvae. 



Sub-family CeratopogonincE. 



Palpomyia longipennis Loew. This species was uncommon, 

 probably it should be called scarce. All specimens found were 

 taken in June, at station 3, and all were in the pupal stage. 



Palpomyia sp. Other specimens of this genus, all in the larval, 

 stage, equal in number to specimens of P. longipennis, were 

 found, chiefly at station 11, but were not identifiable to species. 

 Whether they represent one or more than one species cannot 

 be said. 



Johannseniella sp. This form was rare beyond an}' question. 

 Dr. Malloch found but a single larva in all the midge material 

 identified. 



