February, '13] ENTOMOLOGISTS' PROCEEDINGS 11 



Progress fully reported in last two annual reports of the Cape Cod Cranberry 

 Growers' Association, and in the last annual report of Massachusetts Agricultural 

 Experiment Station. 



Minnesota, St. Anthony Park, — F. L. Washburn. 



200. Shade tree pests. A. G. Ruggles in immediate charge. 

 Pennsylvania, Harrisburg, — H. A. Surface. 



201. Susceptibility of varieties of cultivated plants, especially fruits, to insect and 

 plant-disease injury. 



202. Improvement of the Ume-sulphur solution. 



203. Prevention of peach tree borer and certain other orchard pests. 

 Peru, S. A., Lima, — Charles H. T. Townsend. 



204. Cotton insects in general. 



Some 38 or 39 different species of insects have been found to attack the cotton plant 

 in Peru, counting several weevils and Heteroptera which have not actually been 

 observed to feed upon the plant but whose presence in the squares makes this habit 

 almost certain; and of these Hemichionaspis minor and Anthonojnus vestitus are 

 especially serious, the latter probably exceeding the former in injury, while Dysdercus 

 ruficollis and some 6 or 7 others cause great injury. Seven of these cotton pests are 

 coccids: — H. mirwr, Saissetia oleoB (or nigra), Pulvinaria n. sp.. Coccus hesperidum 

 (probably), Orlhezia sp. perhaps insignis (Guayaquil), Dactylopini sp., Coccid per- 

 haps Dactylopini. More than 40 species of enemies, chiefly parasites, aside from those 

 of H. minor and A. vestitus, have been found to attack these cotton plagues. It may 

 be added that there are at least three serious fungus plagues of cotton in the Peru- 

 vian coast region. These observations refer to the coast region only. 



205. Transmission of verruga by bloodsuckers. 



Careful consideration of all available published and unpublished data seems to 

 indicate almost certainly that verruga is transmitted to man by a tick. 



206. Ticks, lice, bloodsucking Diptera and Hemiptera. 



Native and domestic mammals examined for ectoparasites and many species found 

 including ticks; many bloodsucking Diptera found, especially Simulium and tabanids 

 in the montana. Some interesting undetermined forms of ectoparasites found on 

 Oryzomys and bats. 



207. Citrus and other fruit pests. 



Five serious citrus coccids occur in the coast region. Fruit-fly determined as 

 Anastrepha sp. (not ludens). 



208. Pests of cane, coffee, tobacco and general crops. 



Seven serious cane pests occur, including montana forms. Many pests of crops in 

 general collected and observations noted. 



Porto Rico, Rio Piedras, — D. L. Van Dine. 



209. General entomological survey of the sugar cane areas of Porto Rico. 



We have now a list of some twenty (20) injurious species together with many asso- 

 ciated species. The most of this material has been identified by the specialists of 

 the United States Bureau of Entomology at Washington. The character of the 

 injury of these species is understood and so is the comparative amount of damage. 

 A great deal of information has been obtained on the local distribution of the species 

 and the factors that regulate such distribution. 



210. General breeding work. 



The breeding work has been in progress for only a year but some work has been 

 done on practically all of the species affecting cane and quite a little work on a few of 

 the more important species. At the present time the breeding work relates to the 

 species of Lachnosterna affecting cane in Porto Rico and their local and introduced 

 parasites. 



