383 



dead leaves or clumps of earth, frequently 20 or 30 together. The 

 adults generally emerge in the night, and sometimes pair on the 

 following day and oviposit on the 2nd or 3rd day. The usual length 

 of life of captive moths is about five days. 



The damage done by D. virginica in some locaHties was claimed 

 by farmers to be from 25 per cent, to total destruction. The only 

 parasite bred from this moth is an Ichneumonid, Ere)iiotylus arctiae^ 

 Ashm. 



Baker (A. C). U.S. Bur. Entom. A Melaphis from Moss (Horn.).— • 

 Entom. News, Philadelphia, xxx, no. 7, July 1919, pp. 191-196, 1 



The only American species hitherto recorded in the genus Melaphis 

 is the type species, 31. rhois, Fitch, which produces galls on sumach. 

 Certain closely related species, forming galls on sumach in other 

 countries, have been referred to the genus Schlectendalia, which is 

 considered a synonym. The galls formed by these species are autumn 

 galls, not spring ones like those usually produced on poplar, etc., 

 by species of Pemphigus and other Aphids. In April 1916, moss was 

 found in Vii'ginia infested with young apterous forms of an Aphid. 

 It is probable that these were produced by stem-mothers originally 

 present, but no such forms were found. The moss was placed in 

 breeding-cages and the young insects reared to maturity. All the 

 mature insects were winged and were unable to live upon the moss. 

 Upon careful examination, these seemed to belong to the genus 

 Melaphis. Had this been discovered in time, transfers to sumach 

 would have been made to determine whether these might be the long 

 missing spring migrants of M. rhois, but by the time the examination 

 was made all the alate insects were dead. They differed distinctly 

 from M. rhois, but a connection with that species is possible and 

 would have been worthy of a trial. The insect is here described 

 under the name Melaphis minutus, sp. n., and it is hoped that further 

 opportunities for studying its hfe-history may occur. 



SwAiNE (J. M.). Tent Caterpillars.— Z)ej?i!. Agric. Domin. Canada, 

 Entom. Branch, Circ. no. 1 (Revised Edition), 21st September 

 1918, 12 pp., 8 figs. [Received 15th July 1919.] 



The bulk of the information in this circular on Malacosoma spp. 

 has previously been noted [see this Review, Ser. A, i, p. 231]. In 

 1912 outbreaks of bacterial and fungous diseases were noticed which 

 later proved effective in controlhng the caterpillars. 



Lead arsenate may be used as a spray at the rate of 3 lb. to 10 U.S. 

 gals, of water, but if used in the powdered form only half as nuich 

 of the poison is needed. 



Dendy (A.). Report on the Effect of Air-tight Storage upon Grain 

 Insects. Part I. — Rept. Grain Pests {War) Committee, Royal 

 Societij, London, no. 1, 1919, pp. 6-24. 



It is concluded from experiments described in this paper with 

 regard to Calandra granaria, C. oryzae and Silvamts surinamensis 



