565 



man standing on it, was drawn through the trench to make a dust 

 furrow. On beginning their spring migration, the caterpillars wandered 

 into the trenches, where they were killed with a poisoned bait made 

 by adding 1 lb. of Paris green to 50 lb. of shorts and then pouring in 

 1| gals, of molasses dissolved in 1 gal. of water. Ten pounds of the 

 shorts is sufficient to treat 70 rods of furrow. In one experiment 537 

 dead larvae were found in one foot of trench. Stinkweed and lucerne 

 hay poisoned with Paris green and placed along in the trenches was 

 also found of value. Mr. Strickland's discovery of this use for stink- 

 weed is of no little significance in view of the prevalence of this weed 

 on neglected lands and its increase. The appearance of this pest is 

 probably influenced by the occurrence of this weed, upon which the 

 female moth deposits her eggs. E. agrestis is distinct from the cutworm 

 {Porosagrotis orlhogonia), an outbreak of which occurred two or three 

 years previously [see this Review, Ser. A, ii, p. 487]. 



DuPORTE (E. M.). Report on some Phases of Entomological Investiga- 

 tion. — Agric. Gaz. of Canada, Ottawa, ii, no. 6, June 1915, 

 pp. 569-572, 2 figs. 



Four parasites of the bud-moth {Eucosma ocellana), have been found, 

 the most important being the egg parasite, Trichogramma (Pentarthron) 

 minutum. The larval and pupal stages of this Chalcid are passed in the 

 egg of the host. From Phyllotreta sinuata, which was recorded during 

 1913 and 1914 on the leaves of cress and radish, a Hymenopterous 

 parasite, Pleurotropis sp . , was reared . Bruchophagus funebris, the clover 

 seed Chalcid, was observed in Canada for the first time in 1913. The egg 

 and larval stages are passed in the clover seed. There are at least 

 two broods annually ; hibernation takes place in the seed on the 

 ground or in stored seed. Control measures consist of the early 

 cutting of the first crop, the fumigation of new seed before planting, 

 and the drilhng of seed as deeply as possible to prevent the emerging 

 Chalcids from reaching the surface. Chortophila (Phorbia) fusciceps 

 has been found feeding on the roots of turnips ; the same remedies 

 may be applied as against C. brassicae. 



McCoLLocH (J. W.) & YuASA (H.). A new Parasite of the Chinch Bug 



Egg (Hym.). — Entom. News, Philadelphia, xxvi, no. 4, April 1915, 

 pp. 147-149, 3 figs. 



During 1914, an investigation of the life-history of Evmicrosatna 

 henefica, Gahan (chinch bug egg-parasite) was carried out in Kansas. 

 To determine the percentage of parasitism, eggs were collected during 

 the summer and separated into lots of from 10 to 50. These were 

 placed in small vials and examined daily. On 4th August, a greenish 

 parasite emerged from eggs collected from crab grass on 27th July, 

 the emergence hole dift"ering from that of the host or of E. benefica. 

 A second individual emerged on 10th August from eggs collected on 

 1st August. Collections were made of all kinds of eggs found in the 

 habitat of the chinch bug and its parasites in order to determine 

 whether E. benefica had any other host. Large numbers of eggs 

 believed to have been those of a leaf-hopper, were found to be para- 

 sitised by the same species, which was identified as Abella subfiara, 



