450 EXPERIMENT STATION KECORD. 



of the original wei^lit of tbe stalks bo letainod as charcoal. A retort is said to 

 have been iiateiiled vvhicli will convert sn)all lots of cotton stalks into charcoal 

 in a few bonrs and is capable of uiakinj? from one-fonrth to one-half a ton per 

 day. Attention is called to tbe fact that the calorific value of the charcoal is 

 7,420, as compared with that of 2,744 for cotton wood. 



A new Gracilaria on azalea, A. Busck (Inseciiti/r Inacitia: Men.Hlruua, 2 

 (WJJf), No. J, pp. 1, 2). — Gracilaria azalexB, a lepidopteran reared from leaf- 

 mining lai'vaj on azalea at Yonkers, N. Y., also at New Brunswick, N. .7., from 

 azalea im])orted from Germany, is described as new to science. 



The chestnut bast miner, A. BusOic {lnHccutor Inscitiw Mcnfitriiuft, 2 (lOUf), 

 No. 1, pp. 3, //. fi(j. 1). — Ectoedcmia phleophnga, a tineid which lives in the lower 

 layer of the bark of the chestnut .just above and encroaching upon the cambium, 

 is described as new. Both larvai and adults of this .species have been reared at 

 Falls Church, Va. 



Observations of the enemies of rice (Oryza sativa), particularly Chirono- 

 inus cavazzai, F. Cavazza {Bol. Lab. Zool. Gen. e Agr. R. Bcuola Sup. Agr. 

 Pnrtici, 8 (1914), pp. 228-239, pi. i).— This article deals largely with the 

 biology of C. cavazzai, a chii'onomid that is a source of injury to rice in the 

 Italian Provinces of Bologna and Ferrara. 1'his dipteran was first described 

 by Kiefler in 1913.« 



A contribution to the knowledge of bloodsucking' Ceratopogoninoe of 

 Brazil, A. LuTz (Mem. Inst. OswaUlo Cruz, 5 (1913), No. 1, pp. 45-73. pU. 3). — 

 Twelve species are described as new in this continuation of the work previ- 

 ously noted (E. S. R., 29, p. 54). 



The posterior stigmata of dipterous larvae as a diagnostic character, with 

 especial reference to the larvae incriminated in cases of myiasis, M. E. Mac- 

 Gregor (Parasitology, 7 (1914), No. 2, pp. 176-188, pis. 3, figs. ,?).— This study is 

 illustrated by photomicrographs of the various forms of posterior stigmata 

 occurring in dipterous larvse concerned in myiasis. 



Myiasis of the urinary passages, E. F. King (Jour. Amer. Med. Assoc., 63 

 (1914), No. 26, pp. 2285, 2286). — Fannia scalaris was the species concerned in 

 the case here reported. 



Effect of cold storage upon Mediterranean fruit fly, E. V. Wilcox and C. J. 

 IIuNN (Hatcaii Sta. Press BiiL -}7 (1914), PP- 10-12).— It is pointed out that 

 in fruit fly experiments in Australia (K. S. It., 19, p. 14,'j) in 1907 eggs exposed 

 to temperatures of from 33 to 35° F. lived for 15 days. In experiments con- 

 ducted by the authors no pup;e developed and no adult flies were obtained 

 from infested star apples ((■hnjsopJn/lUnii cainito) kept in cold storage for 

 10 days at a temperature of 32°; and no adult flies were obtained from in- 

 fested figs kept at the same temperature for the same length of time. 



Experiments were then conducted with infested mangoes and citrus placed 

 in two cold-storage rooms, one kept at a temperature of 32°, the other at 3G°. 

 Baskets of infested fruit were removed at the end of 2i days and every day 

 thereafter until a period of 15i days had elapsed. Thirty flies emerged from 

 the fruit kept at 36° and 25 from that kept at 32°, but no adult flies from fruit 

 which had been kept at a temperature of 32° longer than 2^ days, and no flies 

 from fruit which had been held at a temperature of 30° longer than 41 days. 



A series of experiments was conducted in which 6 full grown larvre were 

 placed on moist sand in each of a number of jars and kept in rooms exposed 

 to a temperature of 32 and 36° for 4, 7, 11, and 14 days, respectively. Two 

 larvfe in the jar kept at 32° for four days pupated after removal but no further 

 development took place. All the larv:e were dead when examined 22 days 



»Bol. Lab. Zool. Gen. e Agr. R. Scuola Sup. Agr. Portlci, 7 UOlo), p. 210. 



