ECONOMIC ZOOLOGY ENTOMOLOGY. 557 



flower, IlcUanthus aiinitus, is wholly sterile with its owu ix)lleu aud has to 

 be visited by iusects in order to produce seeds, and that presumably the same 

 is true with other species of the geuus. 



A species of Megastigmus reared from larch seeds, S. Marcovitch (Canad. 

 E)it., Jf6 {l'Jl.'f), ^^0. J 2, pp. 4.i5-ji38, figs. 8). — Megastigmus laricls, a chalcidid 

 reared from seeds of the larch. {Larix kiricina) at Ithaca, X. Y., in Septem- 

 ber, 1913. is described as new to science. 



The insect galls of Cedar Point and vicinity, P. B. Hears (Ohio Nat., 15 

 (1914). No. 2, pp. 377-.392, pgs. 63). — A synonymic list with brief descriptions 

 aud peu illustrations of Go galls, many of which are common throughout Ohio. 



Three new Hymenoptera, J. C. Crawford (Iru^ecutor Inscitiw Mcnstruus, 

 2 (lOl.'f), No. 3, pp. 3()-38). — PacJnjneuron hammari, reared from codling moth 

 material at Koswell, N. :Mex. ; Cgrtogastcr gJasgowi, reared from puparia of 

 Brachydcutcra argcntafa at Urban, 111.; and Pleurotropis tcfitaceipc^, reared 

 from a leaf miner on an undetermined plant at Batesburg. S. C, are described 

 as new. 



A revision of the braconid genus Urosigalphus, J. C. Crawford (Insecutor 

 Insciiiw Menstruus, 2 (19H), No. 2, pp. 22-27). — In his revision of this genus 

 of parasites the author presents a table for the separation of 13 species of which 

 S are describe<l us new to science. 



Report of field entomologist Fullaway on his expedition to Africa, D. T. 

 FuLLAWAY (naiciiii. Forester and Agr., 11 (1914), No. 12. pp. 349. 350'). — A 

 brief statement of the success attained in the introduction of fruit fly parasites 

 into Hawaii. 



Some observations on the salivary secretion of the commoner bloodsuck- 

 ing insects and ticks, J. W. Cornwall and W. S. Patton (Imlian Jour. Med. 

 Research, 2 (1914), No. 2, pp. 569-593, pis. 2).—\ report of studies of a number 

 of hematophagous arthropods. 



Tea and citrus mites, A. Rutherfoed (Trop. Agr. [Ceylon], 42 (1914), No. 3, 

 pp. 225-229). — Notes are presented on Breripalpus obovatus, a common and 

 widely distributed tea pest; Tetranychus bioculatus, which apparently is the 

 least injurious of the mites attacking tea in Ceylon ; and T. nv/tilaspidis, which 

 the author reports having been recently found on citrus in Ceylon. 



Cactus solution as an adhesive in arsenical sprays for insects, M. M. High 

 (U. S. Dept. Agr. Bui. 160 (1915), pp. 20). — In searching for an adhesive for 

 use wth arsenicals, the author's attention was directed to the prickly pear 

 (Opuntia lindlieimeri) which is used by Mexicans to promote adhesiveness in 

 whitewash. This cactus, which contains a high fluid content and is very muci- 

 laginous, is sliced several hours previous to the application and placetl in the 

 water or lime mixture. 



In the author's control work with the beltetl cucumber beetle ( Diahrotiea 

 haltrata) tests were made of the adhesive action of a cactus solution on Paris 

 green, lead chroma te, zinc arsenite (in both paste aud powder forms), lead 

 arsenate, ferrous arsenate, and ii'on arsenite. A comparative test of cactus and 

 whale oil soap as adhesives I'esulted in favor of the former. 



Experience indicates that 15 lbs. of cactus with spines, which is preferable to 

 the spineless, is the proi>er proportion to use with HO gal. of water. By the use 

 of cactus solution as an adhesive not only do the arsenicals give better and 

 more lasting results, biit considerable expense may be saved through the use of 

 the powdered form. Copper sulphate may be used as a preservative for the 

 cactus solution. 



The author's experiments show that the beetle can be best controlled by 

 spraying with zinc arsenite or with Paris green. The other arsenicals employed. 



