456 EXPERIMENT STATION EECOED. 



vora, C. nigerrima, and C. tritea; and 7 species of Dacus, namely, Dacus olew, D. 

 armatus, D. hiparUtus, D. lounshuryi, D. vertebratus, D. brevistylus, and D. 

 longistylus. The liymenopterous parasites and predators of fruit flies next 

 dealt with (pp. 96-128) include 15 species of Braconidj?, 2 of Proctotrupidse, 6 

 of Chalcididse, and 3 of Formicidfe, many of which are characterized for the 

 first time. 



The following are a part of the summary and conclusions drawn by the 

 author : " Various species of Ceratitis and Dacus exist in West Africa ; some 

 of them, at least in the months in which they were observed, in such reduced 

 numbers as to make it seem certain that they are effectually controlled by 

 natural inimical factors. Certain braconid parasites of the genera Opius, 

 Diachasma, Hedylus, and Biosteres, together with chalcids of the genera 

 Tetrastichus. Dirhinus, and Spalaugia, and proctotrupids of the genus Galesus 

 seem to be the inimical factors most active in West Africa against fruit flies. 

 . . . C. capltata was found in Nigeria and in Dahomey, but it was extremely 

 rare, at least from November to February. It seems probable that its rarity is 

 due to the action of the same parasites discovered by me for the other species 

 of Ceratitis and Dacus, though it is quite possible that other inimical factors 

 exist. Some sjjecies of hymenopterous parasites attacls several different species 

 of Ceratitis and of Dacus. Parasites of C. giffardi and C anonce were experi- 

 mentally bred by me on G. capitiita and develoi^ed to maturity. I^iving adults 

 of Opius perproximus. Dirhinus giffardi, and Galesus silvestrii from West 

 Africa, O. humilis and Triclwpna capensis from South Africa, and Diachasma 

 tryoni from Australia, were brought to Honolulu. T^arge numbers of the fruit 

 fly parasites, D. giffardi, O. silvestrii, and O. humilis and a few specimens of 

 D. tryoni were bred at Honolulu and distributed to other islands of the group. 

 No statements can be made in regard to the results of these introductions until 

 the pei-manent establishment of the species in question has been proved, but if 

 Opius, Diachasma. Dirhinus. and Oalesus become acclimatized a notable destruc- 

 tion of C. cupitata may be hoped for." 



Reports of the breeding and distribution of the parasites introduced by the 

 author for the period from May 16 to September 30, by D. T. Fullaway (pp. 

 148-153), and that for the period from October 1 to December 31, by J. C. 

 Bridwell (pp. 154-160), and a summary of the records are appended. A bibli- 

 ography of 15 pages and a complete subject Index are included. 



The development of blow flies, Stroh (Berlin. Tierdrztl. Wehnschr., 29 

 (1913), Xo. .'/2. pp. 7.>.?-7.57). — This article deals with Calliphora vomitoria 

 and C erythrocephala. 



Four new species of Tachinidae from North America, W. R. Walton (Proc. 

 Ent. Soc. Wash., 16 (191.^), No. 2. pp. 90-95. figs. 7 ) .—Polychwtoneura elyii 

 n. g. and n. sp., reared from the red humped apple caterpillar, at East River, 

 Conn. ; Dionca timberlakci, species of which genus are said to be parasitic on 

 beetles of the genus Cassida in Europe, from Cache County, Utah; Linncemyia 

 fulvicauda, reared from Remigia repanda. at Aibonito and Rio Piedras, P. R. ; 

 and Compsilura oppugnator, reared from Cirphis latiuscula. at Rio Piedras, 

 P. R., are described as new to science. 



Description of a new species of Agromyza from Porto Rico, J. R. Malloch 

 (Proc. Ent. Soc. Wash.. 16 (1914), ^o. 2. pp. 89, 90. fig. l).—Agromyza in- 

 (equalis reared from Vigna repens ( ?) at Rio Piedras. P. R., is described as new. 



The apple flea weevil, P. A. Glenn (Trans. III. Hort. Soc, n. scr., 47 (1913), 

 pp. 66-78). — This report of worli with Orchestes pallicomis, carried on largely 

 from June 10 to 24. includes experiments with arsenical and contact sprays 

 and sticky compounds as control measures. 



