INSECT NOTES FOR I9II. 237 



Aspidiotus perniciosus (San Jose Scale). 



The occurrence of this orchard pest in A^Laine was recorded 

 in Bui. 177 p. 28. This spring (1911) some infested twigs were 

 sent in from an orchard near West Baldwin, Maine, about 12 

 miles from the locality where the species was first discovered. 

 Lot 1354. 



Bulecaniiim cerasifex. 



E. canadense, E. caryarum, E. corylifex, E. cynosbati, E. 

 fraxini, E. guiguardi, E. juglandis, E. maclurarum, E. websteri, 

 E. fitchii, and E. pruinosum are all given as synonyms on page 

 70 of the 41st report of the Entomological Society of Ontario, 

 1910. 



The species is apparently on the increase, more specimens 

 having been sent in for identification than in previous years. 

 We have records of its occurrence this year from elm, honey 

 locust, ash, plum, and maple, from various localities in the 

 State. Lot 1362. 



DIPTERA. 



CUI.1CIDAE. 

 Culex pipiens, Aedes trichunis, A. atropalpus. 



In the vicinity of Orono, the most common mosquito during 

 May and early June was Aedes trichurus {cinereoborealis) the 

 larvae of which were extremely abundant in the swamps on 

 the margins of the woods. During the summer the vicious 

 Aedes atropalpus, A. subcantans or a related species, and the 

 house mosquito Culex pipiens appeared in annoying numbers, 

 the last being still prevalent in October. 



MuscoiDEA. 

 Hypoderma lineata (Ox bot-fly). 



Bot-flies were abundant this spring at Orono, cows in pas- 

 tures adjacent to woods were said to be particularly affected. 



Cuterehra sp. from a mouse. 



A larva belonging to this genus was sent July 31 by a cor- 

 respondent from Brooklyn, Me., with the remark that 2 speci- 

 mens were taken ; stating further " they had eaten a 



