391 



Hooper (C. H). The Insect Visitors of Fruit Blossoms and the 

 Pollination and the Fertilization o! Fruit— The F IJ.d. // , 

 London, i, no. 4, April 1922, pp. 93 98, 1 lig. 



This is a summary of observations on the insect visitors to fruit 

 blossoms and of experiments in tlie poUination of hardy fruits. The 

 observations aimed at obtaining a general idea of the subject, and 

 do not give precise data as to the species concerned. With regard 

 to their relative vahie for fertihsation purposes, hive-bees, and prol:)al5lv 

 also bumble-bees, are very perfect pollen carriers, and tlie smaller 

 wild bees, such as Andrena, are also good, while flies appear to be 

 of little value, and many beetles eat the ]X)llen or parts of the flower 

 and do not move from plant to plant. 



Mordvilko's Keys for the Determination of Aphids living continuously 

 or temporarily on Graminaceous Plants and Sedges. — Bidl. Ent. 

 Res., London, xih, pt. 1, May 1922, pp. 25-39. 



A condensed translation of the keys previously mentioned [R.A.E., 

 A, X, 38] is here published. 



Waterstox (J.). On the Chalcidoid Parasites of Psyllids (Hemiptera, 

 Homoptera).— Z>'^^//. Ent. Res., London, xhi, pt. 1, May 1922, 

 pp. 41-58, 7 figs. 



The new species described are Psyllaephagits cellidatus and 

 Paclivjieiiwn crassiculme, bred from RJiinocoIa popidi, Laing, on Populus 

 euphyciticiis in Mesopotamia ; Encyrlus pulvinatus and TctrasticJuis 

 drvi, bred from Trioza citri, Laing, on Citrus in Kenya Colony; 

 Chilonenrus praenitens, from galls of a Psylhd (? Trioza sp.) in Jamaica ; 

 and Tetrastidms radiatus bred from nymphs of Eiiplialerits eitri on 

 lemon leaves in India. • 



The original descriptions of the following parasites of Psyllids 

 are cjuoted : — Sceptrophorus solus, How., from galls of Trioza 

 magnoliae, Ashm., on red bay [Pcrsea carolinense) in Florida , 

 Psyllaephagus pachypsyllac. How., from Pachypsylla celtidis-gemma, 

 Riley, in Maryland ; and P. trioziphagus, How., from galls of Trioza 

 dios'pvri, Ashm., on persimmon [Diospyros virginiana) at Washington. 



Marshall (G. A. K.). Some Injurious Neotropical Weevils (Curcu- 



lionidae). — Bidl. Ent. Res., London, xiii, pt. 1, May 1922, 

 pp. 59-71, 2 plates, 4 figs. 



The new species described include : — Diaprepes capsicalis, adults 

 of which have been observed feeding on pepper {Capsicum), and 

 Lachnopus cojfeae and L. cojfeae montanus, feeding on young coffee 

 leaves, from Porto Rico ; Cholus ivattsi, which causes appreciable 

 damage to pineapples in Grenada, and may apparently be controlled 

 by good cultivation, absence of shade and collection of adults ; 

 ConotracheUts psidii, attacking guava fruits {Psidium gitayava), and 

 Piazitrus papayanus, which bores into the leaf-stems of papaw [Carica 

 papaya), from Brazil ; and Lechriops psidii, feeding on fruits of guava, 

 and Ampeloglvpter cissi, feeding on the tender shoots of Cissus 

 ampclopsis, in Porto Rico. 



Other species dealt with are Exophthalmodes roseipes, Chev., which 

 attacks cotton in Porto Rico, but is more abundant on Citrus, and 

 Coelosternus granicollis, Pierce, attacking stems of cassava {ManiJwt 

 iitilissima) in Brazil, 



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