38 MAINE AGRICULTURAL EXPLRIMLNT STATION. I9IO. 



tubes of varying length. The adult is a little yellow fly about 

 j4, of an inch long with striped thorax and abdomen with black 

 markings. (Lot 847.) 



Pegomyia sp. ? (Cabbage maggots). 



A correspondent from Bowdoinham, Maine, in a letter dated 

 July I, reports the destruction of 25,000 cauliflower plants by 

 maggots. As no specimens were received the species was not 

 determined, though it may have been Pegomyia brassicae or 

 some allied form. 



Musca domestica (House or typhoid fly). 



The ever present and pestiferous house fly because of its 

 filthy habits continues to be a serious menace to the health of 

 the community. As they breed in stable manure every effort 

 should be made to reduce their number by the removal of this 

 refuse from the vicinity of dwellings. Foods of all kinds should 

 be carefully protected from them. Milk should be handled with 

 great care to prevent flies from contaminating it, as it is a most 

 excellent medium for the development of the typhoid bacilli as 

 well as of the bacilli of some other intestinal troubles to which 

 young children are highly susceptible. Upon this subject much 

 has been said and written, but too much stress cannot be laid 

 upon a matter of such vital importance. 



Prontina archippivora (A parasitic fly). 



A specimen of the chrysalis of the monarch butterfly (Anosia 

 plexippus) sent from South Berwick was found to be parasi- 

 tized by the above named fly. The pupal stage of the parasite 

 was passed outside of the butterfly chrysalis. The flies emerged 

 August 28. (Tot 789.) 



