ECONOMIC ZOOLOGY — ENTOMOLOGY. 863 



mitgrass (C. flavicomus) also, it does not naturally cause much damage to the 

 young corn." 



Sphenophorus parvulus is not common at Kaleigh, but a single female collected 

 May 19. 1911, has laid 63 eggs, commencing with 3 eggs on May 22. "On June 

 30, 3 eggs were laid and the beetle showed no sign of stoiiping. The newly 

 batched larvfe are very small and require A'ery careful handling. The first 

 larva was secured June 8, and since then several have hatched and are now 

 feeding and growing satisfactorily." 



The mite TyrugJn pints anicricaniis appeared in the experimental cage. 



A classification of the suborder Chalastogastra of the Hymenoptera, S. A. 

 RoHWER (Proc. Ent. Soc. Wash., J,l {1911), No. J,, pp. 215-226).— This paper 

 consists of tables for the separation and characterization of the superfaniilies 

 Megalodontoidea, Oryssoidea, Sirecoidea, and Tenthredinoidea, their families, 

 subfamilies, and tribes. 



Notes on the pear slug' (Eriocampoides limacina), R, L. Webstkr (Ann. Ent. 

 Soc. Amcr., 4 il^^l), No. 2, pp. 181-lS.')). — It is stated that cherry and plum 

 trees in Iowa suffered much injury nearly every year by the common pear slug, 

 the foliage frequently being greatly damaged before the presence of the slugs is 

 noticed. Young cherry trees in the town of Ames have been killed as a result of 

 defoliation following the injury by the slugs. 



In this paper the author deals with the past history and distribution, life 

 history, natural enemies, and experiments with insecticides. Pentarthron miiiu- 

 tiim is the most common egg parasite of this pest but Closterocerus cinctipennis 

 was reared in equal abundance from eggs collected at Ames in 1909 and 1910. 

 Podisus mdcuUventris w^as found to be a very active enemy in 1910. 



In experiments with insecticides, the author found a 10 per cent solution of 

 kerosene emulsion to be quite effective; several simple soap solutions were 

 effective at concentrated strengths. Paris green, 1 lb. to 150 gal. of water, was 

 also effective. 



Note on Theronia fulvescens, J. M. Aldrich (Jour. Econ. Ent., 5 {1912), 

 No. 1, pp. 87, S8). — These notes relate to T. fulvescens as a parasite of Neo- 

 phasia menapia, the white butterfly of western pine and fir. 



This butterfly began to be noticeably abundant near ISIoscow, Idaho, in 

 1895. In 1896, 1897, and 1898 it caused much loss in the forests of the North- 

 west by completely defoliating pine and fir timber in considerable areas, while in 

 all the intervening forests it was very abundant also. The parasite apiieared 

 and reached its maximum in 1898, at which time it swarmed in the woods in 

 late summer in incredible numbers. 



It is stated that the following spring the extermination of N, mrnapia seemed 

 complete all over the Northwest. Only in the last 2 or 3 years has it reap- 

 peared and now seems to be at the beginning of another cycle of abundance. 



Two new Hymenoptera, J. C. Crawford (Proc. Ent. Soc. Wash., 13 (1911), 

 No. 1/, pp. 233, 23.'i). — Tliripoctcnns russelli n. g. and n. sp.. I'eared from Ilelio- 

 thrips fasciatus at Compton, Cal.. and Tctrastichus doteni n. sp., the larvte of 

 which feed readily on Hahrohracon hchctor and Meraporus and occasionally on 

 Pteromalus, are here described. 



Scale insect parasitism in California, H. J. Quayle {Jour. Econ. Ent., // 

 (1911), No. 6, pp. 510-515). — This paper presents a brief account of the pi-esent 

 status of scale parasitism in California. 



Notes on the life history of the tick parasite, Hunterellus hookeri, H. P 

 Wood (Jour. Econ. Ent., J, (1911), No. 5, pp. J,25-Ji31, pi. l).—lt is stated that 

 in addition to having been reared from engorged nymphs of the brown dog tick 

 (Rhipicephalus sanguineus), this parasite has also been reared from a nymph 

 from the rabbit Dermacentor (Defmacentor parumapertus morflinatits), col- 



