ECONOMIC ZOOLOGY ENTOMOLOGY. 251 



The mulberry borer (Dorchaschema alternatum) is stated to have been a 

 serious nest on the mulberry tree in the vicinity of Lincoln during the spring 

 of 1908. Fifty per cent of the larvae working in the stems were found to be 

 parasitized by a braconid. In investigations made in the forest reserve near 

 Halsey July 10, it was found that about 35 per cent of the new tips of the 

 young jack pine (Pinus divaricata) and Scotch pine (P. sylvestris) were affected 

 by the pine-tip moth (Evetria frustaua), and practically all of them were 

 dead. A brief report of the resirlts of studies of the parasitism of the white- 

 marked tussock moth in 1908, prepared by C. H. Gable is presented. The occur- 

 rence of and injury caused by numerous other species is briefly considered. 



Report of the government entomologist for the year 1909—10, C. C. 

 GowDEY (Rpt. Govt. Ent. Uganda, 1909-10, pp. 2//).— The author here reports 

 upon the insects that were injurious during the year to various crops in Uganda, 

 as follows: The Mediterranean fruit fly (Ceratitis capitata), coffee beetle 

 (Stephanoderes coffeie), Ceroplastes ceriferus, and Ceroptastes n. sp., which 

 were the source of injury to coffee; the cacao fruit fly (Ceratitis punctata), 

 Stictococcus dimorphus, cacao beetle (Adoretus hirtellus), and GryUotalpa 

 africana, which injured cacao; the citrus psylla (Trioza sp.) the orange butter- 

 fly (Papilio demodociis), scale insects (Mytilaspis gloveri and M. eitricola), and 

 plant lice (Aphis citri), attacking citrus; cutworms injurious to garden crops; 

 the cotton stainer (Oxycarenus hyaUpennis) and the cotton bollworm (Earias 

 insulana), which attacked cotton; the castilloa borer (Inesid<i leprosa), 

 Termes bellicosus, and Pitlvinaria psidii, which were injurious to rubber; the 

 sweet potato caterpillar (Acrwa terpsichore) , the sweet potato weevil (Cylas 

 formicarius) , and Conchyloctenia punctata parumniaculata, which injured 

 sweet potatoes; the palm weevil (Rhyncophorus phccnicis) and Aspidiotus 

 cydoniae, which injured palms; and the Congo floor maggot (Auchmeromyia 

 luteola). 



Report of the entomologist [of Ceylon], E. E. Green (Admin. Rpts. Roy. 

 Bot. Gard. Ceylon, 1909, Ed., Sci., and Art, pt. //, pp. //-6).— In this report brief 

 accounts are given of the occurrence and injury caused by some of the more im- 

 portant insects, particularly the shot-hole borer (Xylehorus fornicatus). A 

 new rubber pest that caused considerable damage to young rubber plants on one 

 estate was found to be the slug, Mariaella dussumieri. 



Some insect pests of the sugar cane, J. J. Quelch (Timehri, Brit. Guiana, 

 n. ser., 1 (1911), No. 1, pp. 9-14). — Mention is made of 10 insect enemies of the 

 sugar cane in British Guiana and of 12 birds that assist in combating them. 



Insects injurious to the peach trees in New Jersey, J. B. Smith: (New Jersey 

 Stas. Bill. 235, pp. 3-43, pis. 4, figs. 14). — Nine insects that are the source of 

 injury to peach trees in New Jersey and require treatment in the orchard are 

 here considered, namely, the peach borer, plum curculio, San Jose scale, terra- 

 pin scale, black peach aphis, green peach aphis, shot-hole borer, peach twig 

 moth, and rose chafer, brief accounts being given of the life history, injury, 

 and remedial measures for each. 



The peach borer, which occurs throughout the State, is much more injurious 

 in the lighter soils of the southern section of New Jersey than in the more 

 stony, hilly North. A report of studies of the life history and remedial meas- 

 ures for this borer, conducted by the author, has been previoulsy noted (E. S. R., 

 10, p. 656). 



Observations made during the seasons of 1909 and 1910 indicate that the 

 appearance of adults prior to July 1 is exceptional. It is estimated that not 

 10 per cent of the eggs actually laid ever produce larvae that secure entrance 

 to feeding quarters in the tree. From collections made during the season of 

 1910, it appears that there are five stages between the eggs and full grown 



