VI CONTENTS. [Vol. :;7 



Page. 



Observations ou polycystic! gregai-ines from Arthropoda, Watson 558 



On a trematode larva encysted in a crab, Helice tridens, Yoshida 558 



The death-feigning instinct, DuPorte 559 



Arsenic as an insecticide, Lovett and Robinson 559 



Toxicity of various benzene derivatives to insects, Moore 559 



Carbon disulphid as an insecticide, Hinds 559 



Nicotin sulphate as a poison for insects. Lovett 559 



The practical use of the insect enemies of injurious insects, Howard 559 



Losses caused by imported tree and j^lant posts. Marlatt 559 



Notes on a southern trip, Pierce 560 



Second biermial report of the Montana !>tate Board of Entomolog}', Cooley 560 



Annual report of the Government entomologist. Gowdey 560 



(Cotton pests in the arid and semiarid Southwest. Morrill 560 



Some problems in insect control about abattoirs and packing houses, Bishopp. . 560 



Insects injurious to man and stock in Zanzibar, Aders 560 



Guide to specimens and enlarged models of insects and ticks 560 



Methods of controlling grasshoppers, Milliken 560 



Grasshoppers and their control, Severin and Gilbertson 561 



Destroy the grasshoppers. Urbahns 561 



Report on the great invasion of locusts in Egypt in 1915, McKillop and Gough . 561 



New Thysanoptera from Florida, Watson 561 



An annotated list of the Thysanoptera of Plummer "s Island. Md. , Hood 561 



Two new species of Diryphus from Porto Rico, Gibson 561 



The green bug ( Toxoptcra gmminum) outbreak of 1916. Kelly 561 



Plant lice injurious to apple orchards, II, Parrott, Hodgkiss, and Lathrop 561 



The reddish-brown plum aphis (Rhopalosiphum nipnphtx), Davidson 562 



The migratory habits of My:iis ribis. Gillette and Bragg 562 



Little-known western plant lice. II, Davidson 562 



Methods for the study of mealy bugs, Ferris 563 



Insect parasites and predators as adjuncts in control of mealy bugs. Smith 563 



Some comparisons of Coccus citricola and C. hesperidum, Quayle 563 



A scale insect new to California, Smith 563 



The Mediterranean fig s^^ale {Lepidosaphcs ficiis), Rouliard 563 



Two new species of lace bugs. Ileidemann 563 



Notes on Leptobyrsa rhododerulri. Die kcrson 563 



Check list of the Lepidoptera of Boreal America, Barnes and McDunnough. . . .563 



The Barnes and McDvinnough '" list, " Dyar 563 



Suppression of the gipsy anci brown-tail moths and its value. Burgess 563 



Solid-stream spraying against the gips}' and brown-tail moth. Worthlcy 563 



Louisiana records of the bindweecl prominent {Scliaura ipomcse), Tucker 564 



Nepticulida^ of North America, Jiraun 564 



The pink bollworm , J'tct inophora gossypicUa, Busck 564 



[New Lepidoptera]. Dya^ 564 



Effect of time of seeding and volunteer wheat on Hessian fly. Parks 564 



The mosquitoes of the mountains of California, Dyar 564 



Bromclicohus anophrlfs, Dyar and Knab 565 



A State-^vide malaria-mosciuito survey of California, Herms 565 



The rice fields as a fa<>tor in the control of malaria. Freeborn 565 



A plea and a pl.in for the eradication of malaria, Hoffman 565 



Notes on horse flies as a pest in southern Florida, Snyder 565 



A synoptic revision of the Ciiterebrida\ Towiisend 565 



The head and throat of American game animals, Townsend 565 



Notes on "Pcrciianthrax. " with descriptions of new 8i>ecie8, Cole 565 



The occurrence of Fmncrus slrigatus in Canada, Gibson 566 



The Mediterranean fruit fly, Back .565 



Mediterranean fruit fly (Cfratitis capilata) breeds in bananas, Severin 565 



Dark currant fruit fly in (California, Rhagolctis ribicola, Severin 566 



The melon fly in Hawaii, Back and Pemberton 566 



The root maggot pest, Stcwkey 566 



Notes on some western Buprestida^, Burke 566 



A new species of Agrihis from California. Fisher 566 



The locust borer ( Cyllene robinin), Sanborn and Painter 566 



A new spcKues of Xylotrechus, I'isher 566 



The horse-radish flea-beetle, Chittenden and Howard 566 



The two-banded fungus beetle, Chittenden 567 



A troublesome household jiest (Attagcnus plebius) of Hawaii, Illingworth 567 



