656 EXPERIMENT STATION EECOED. 



Proceedings of the First International Entomological Congress {1. Cong. 

 Internat. Ent. Brussels, 1 (1910), pp. 277, pis. 5; 2 {1910), pp. 520, pis. 27).— 

 Among the papers of interest to the economic entomologist, all of which are 

 in the second volume, are the following: "Springtails" (CoUembola) : Their 

 Economic Importance, with Notes on Some Unrecorded Instances of Damage, 

 by F. V. Theobald (pp. 1-18) ; The Calliphorine Cutaneous Parasites of Do- 

 mestic Animals, by L. Gedoelst (pp. 19-28) ; The Conti'ol and Disinfection of 

 Imported Seeds and Plants, by D. Morris (pp. 33-40) ; The Distribution of the 

 Yellow Fever Mosquito (Stegomyia fasciata) and General Notes on Its Bio- 

 nomics, by F. V. Theobald (pp. 145-170) ; Destruction of Mosquitoes by Small 

 Fish in the West Indies, by D. Morris (pp. 171, 172) ; Sphenoptera lineata 

 (geminata) and the Larva of a Lepidopteron which Attaclis the Sulla {Hedy- 

 sarum coronarium) in Tunis and Sicily, by T. de Stefani Perez (pp. 185-194) ; 

 The Influence of Rontgen Rays on the Development of Lepidoptera, by K. 

 Hasebroek (pp. 195-198) ; Ants and Their Hosts, by H. Donisthorpe (pp. 199- 

 208) ; Ants and Their Guests, by P. E. Wasmann (pp. 209-234) ; Notes on 

 Distribution and Ecology of North American Jassidae, by H. Osborn (pp. 235, 

 236) ; The Polyctenidse and Their Adaptation to a Parasitic Life, by G. Hor- 

 ■vath (pp. 249-256) ; Preliminary Notes on the Importance of the New Family 

 Urothripidse in the Study of the Thysanoptera, by R. S. Bagnall (pp. 283- 

 288) ; Notes on the CEstridre, by G. H. Carpenter (pp. 289-294) ; The Utiliza- 

 tion of Insects, Particularly the Coleoptera, in Zoogeographic Questions, by 

 J. Sainte-Claire Deville (pp. 305-312) ; Observations on the Lepidopterous 

 Enemies of the Cotton Plant in Egypt and INIethod of Combating Them, by 

 A. Andres (pp. 317-320) ; A Note on Methods of Preserving Insects in Tropical 

 Climates, by F. M. Howlett (pp. 357-360;) The Conservation of Types, by 

 W. J. Holland (pp. 361-368) ; Mimicry, by F. A. Dixey (pp. 369-384) ; One 

 Hundred Tears of Entomology in the United States, by H. Skinner (pp. 425- 

 432) ; The Nidification, Biology, and Parasites of Some Hymenoptera, by R. G. 

 Mercet (pp. 457-464) ; Progress and Economic Entomology in India, by H. 

 Maxwell-Lefroy and F. M. Howlett (pp. 465-482) ; and Economic Entomology 

 in Trinidad, by F. W. Urich (pp. 509-516). 



Insects injurious to corn, D. T. Ftjllawat { Hawaii Sta. Bui. 27, p. 20, 

 figs. 8). — While the importance of corn and other cereals in Hawaii has gradu- 

 ally waned, especially of late years, due to the losses occasioned by cutworms 

 and other pests which have increased enormously with the depletion of the 

 golden plover, it is thought that with the control of the cutworm the cultivation 

 of corn will increase fi'om year to year. 



The insects mentioned as attacking corn include wireworms, cutworms, army 

 worms, plant lice, leaf hoppers, defoliating caterpillars, earworms, and grain 

 feeders. Two species of wireworms, namely, Sinwdactylus dnnanionieus and 

 Monocrepidius exsul, have been observed commonly about corn plantations. The 

 commoner species of cutworms attacking corn are Agrotis ypsilon, A. crinigera, 

 Cirpliis unipuncta, and Spodoplera mauritia. The most important natural ene- 

 mies of cutworms are the tachinid flies Frontina archippivora and Chwtogwdia 

 monticola. Ichneumon koeieli, and birds, especially the mynah, golden plover, 

 and Chinese pheasant. 



Aphis maidis is the species commonly found on corn, sorghum, and other 

 cereals. "Aphids have many natural enemies, which tend to keep them in 

 check and at times render them innocuous, notably the ladybird beetles Cocci- 

 nella repan4a, C. abdominalis, Platyomus lividlgaster, Scymnus notescens, and 

 8. vividus, the syrphid fly XantJiogramma grandicornis, the Leucopis grandi- 

 cornis (Fam. Agromyzidae) , and minute internal parasites — cynipids, chalcids, 

 and braconids. A small black encyrtid, first noticed by Mr. Swezey in 1906, 



