2,6 MAINE AGRICULTURAL EXPERIMENT STATION. I9IO. 



its structure cannot be described. On the inner side of the 

 mandible is a spur with several teeth. The lateral comb of the 

 epipharynx (fig. 46) is provided with several blunt teeth. The 

 labrum is oval and margined with setae, the labium (fig. 45 Im) 

 is deeply bifid. 



The adult which is frequently seen upon the windows of 

 dwellings resembles somewhat some malarial mosquitoes in pos- 

 sessing spotted wings — but it may readily be distinguished from 

 the mosquito by its short, blunt proboscis. 



CuEiciDAE (Mosquitoes). 



These pests are with us the greater part of the year, though 

 troublesome mainly in spring and summer. In recent years 

 they have been much studied because of their relation to malaria 

 and other diseases. In Insect Notes for 1906 (Bui. No. 134, 

 Me. Agr. Expt. Station) is given a short list of Maine mos- 

 quitoes, among them two species of Anopheles, one of which 

 is known to be a malaria carrier. Anopheles may readily be 

 distinguished from the others by the spotted wings, by the form 

 of the mouth parts which consist of 3 slender processes, and by 

 the habit of standing when at rest upon a wall with the body 

 inclined at an angle with the vertical. Though no special effort 

 was made to collect them, two rather rare non-malarial mos- 

 quitoes were taken the past season, Cnlex atropalpus and saxa- 

 tilis. The former was bred from larvae taken in the rock pools 

 from the Stillwater branch of the Penobscot river, September 

 22. Of the latter, specimens were captured in the basement of 

 a dwelling in Orono on December 17 and 21. 



As all mosquitoes breed in water, the covering of rain water 

 barrels, filling in of small pools and draining of swamps will 

 do much toward reducingf the number of these insects. 



MusciDAE (Flies). 



Epochra canadensis (Currant fruit fly). 



In a letter dated July 16 a correspondent from Westbrook 

 reports that one-third of his currant crop was ruined by a mag- 

 got which lives in the fruit. It is the larva of the currant fly, 



