160 EXPERIMENT STATION RECOED. [Vol.37 



The order of response to the alcohols and acetic acid containing carbohydrate 

 was the same as that for the aqueous solutions of these compounds. 



"Crude gluten from wheat flour was not attractive. The water-soluble por- 

 tion with or without starch in suspension was decidedly attractive. Several 

 experiments with milk indicate that fat-free caseinogen is attractive, while 

 butter fat is not. Experiments indicate that aqueous solutions of wheat flour 

 and molasses to which sodium arsenite and araylic alcohol are added have con- 

 siderable value as poisoned baits for house flies." 



Biological note on Rhacodineura antiqua (not Ceromasia rufipes), a 

 tacMnid parasite of earwigs, J. Pantel (Bui. Soc. Ent. France, No. 8 (1916), 

 pp. J50-15i; o&«- in Rev. Appl. Ent., Ser. A, 4 (1916), No. 8, p. 324).— It is 

 pointed out that in the previous papers on the habits of R. antiqua the author 

 has incorrectly recorded it under the name C. rufipes. The species was first 

 described by Rodzianko from south liu.s.^ia, where it was observed to live singly 

 in young forms of Forfwula tomis. The adults have been obtained In Portugal 

 and Holland. In the present paper the author considers its life history and 

 habits. 



Sarcophaga and allies in North America, J. M. Aldkich (Lafayette, Iml.: 

 The Thomas Hay Foundation, Ent. Soc. Amer., 1916, pp. Sll, pis. 16; rev. in 

 Science, n. ser., J,5 (1911), No. 1158. pp. 240, 241).— In this work the author 

 describes 14.5 species and varieties belonging to 16 genera, of which 9 genera, 

 95 species, and 6 varieties are described as new. The genitalia of 138 are 

 figured. 



Sheep maggot flies, II, W. W. and .1. L. Froggatt (Dept. A(jr. N. S. ^Vales, 

 Fanners' Bui. 110 (1916), pp. SO, figs. S).— This second paper (E. S. 11., 34, 

 p. 64) consists of a report of work carried out in the New England District 

 during 1914-15 at the Government Sheep Fly Experiment Station. 



On the fruit flies of the genus Dacus occurring in India, Burma, and 

 Ceylon, M. Dezzi (Bui. Ent. Research, 1 (1916), No. 2, pp. 99-121).— Twenty- 

 six species of Dacin.'e representing nine genera are noted of which one genus, 

 eight species, and one variety are described as new. See also a previous note 

 (E. S. R.. 3.5. p. 2.59.) 



Wheat sheath miner. H. L. Skamans (U. S. Dept. Agr., Jour. Agr. Research. 

 9 (1917), No. 1, pp. 17-25. fig. 1). — This is a report of investigations carried 

 on at the Montana Experiment Station. 



During the investigations in 1915 of wheat plants suppo.sed to be infested 

 with the greater wheat stem maggot (Meromyza amerieana) , a whitish larva 

 was found associated with the greenish larva of M. amerieana. This proved to 

 be Cerodonta fcmoralis. concerning which very little has previously been known, 

 and further investigations have shown that it was largely responsible for the 

 damage to the wheat plants. Records of its occurrence indicate that the .species 

 is generally distributed in the Northwest and infests winter wheat, spring wheat, 

 oats, and timothy. Technical descriptions are given of its several life stages. 



The injury cau.sed by the wheat sheath miner appears to be identical with 

 that of the stem maggot until the leaves are examined. It is stated that in 

 each case the larva enters the leaf sheath by mining down from the point in 

 the leaf where the egg was deposited. If the injury is due to C. femoralis the 

 mine in the leaf is narrow, clean cut, and almost straight, while if it is done 

 by M. amerieana it is broad and irregular with indistinct etlges. While il. 

 amerieana enters the stem and eats out the central stalk, usually cutting it off 

 above the first node, C. femoralis confines its attack to mining up and down (he 

 leaf sheath and sometimes girdling the stem without completely cutting it off. 



Whether it girdles the stem or not, the injuries caused by mining in the 

 sheath appear to be sufllcleut to kill the stalk. Some farmers estimated 



