150 EXPERIMENT WTATION RECORD. 



it shrivels and loolcs like a small snail. Tbe larvie of some species of 

 Arctia on beiny' attacked hj Rhogas genundaior tix tliemselves to stems 

 of grass and look like fungus-infested caterpillars, which are not eaten 

 by birds. Zi/g(vna fiUpendulai attacked by Rhogas bicolor acts in like 

 manner. The protection lies in that the larvie. of Zygccna assume this 

 same position when infested by fungi. The larva of a species of Dac- 

 tylopim, when ijarasitized by Leptomastix dacti/lopii, assumes the form 

 of a dipterous pupa, the Leptomastlr thereby escaping many of its own 

 parasitic enemies. The galls produced by many Dii)tera and Hymen- 

 optera often bear some resemblance to fruit and so are not eateu by 

 insectivorous birds, and frugivorous birds are driven off by the as- 

 tringent taste of the tannin m the galls. 



Experiments with infectious diseases for combating the chinch 

 bug, L. Bruner and H. G. Bareer {Nehrcu-l-a Sta. Bui. 34, pj). 143- 

 161, pi. 1, Jigs. 13, map 1). — Results of the work done in 1893 in dis- 

 tributing diseased chinch bugs to farmers in infested parts of the State. 

 The bulletin is partially made up of quotations from the Kansas Station 

 Eeport for 1891. To such farmers as sent in healthy bugs for inocula- 

 tion were returned individuals attacked with the white fungus Sporo- 

 trichum globuUferum. Shipments were made to 104 d liferent persons, a 

 large percentage of them proving a success for destroying the chinch 

 bugs. 



The action of the fungus is described, as also that of the bacterial 

 disease Micrococcus ijisecfornm, and the gray fungus Empnsd aphUJis, 

 both of which appeared and were more or less effective. 



There are described and ligured the following insects which have 

 been mistaken for chinch bugs: False chinch bug {Nysins angustatus), 

 gray plant bug {Fiesma cinerea), large-eyed ground bug {Geocoris bnl- 

 laia), Hea-like negro bug {Corymclama pnlicaria), clouded weed bug 

 [Trapezonotus 7icbnlosus), and Emblethis arenarius. As enemies are 

 mentioned and figured Nabis fusca, Geocoris bullata, Tacliys sp., Hip- 

 podamia convergcns, H. 13-punctata, and Coccinella 0-notata. 



There is appended a list of the persons to whom inoculated bugs 

 were sent, with the results in each case. 



Spraying, G, C. Butz [Pennsylvania Sta. Bpt. 1892, pp. 130- 

 133). — Notes and tabulated data on spraying apple trees for the codling- 

 moth, and experiments with new insecticides and fungicides. Trees 

 of Fallawater and Ben Davis were sprayed with London purj^le, 1 lb. 

 to 200 gals, of water, and the gain in sound apples was nearly 100 i>er 

 cent over the yield from trees not sprayed. Antinonnin, fostite, and 

 l)ar oidium were experimented with, the first being deemed worthless, 

 and the others, which are fungicides, not being sufficiently tested. 



Miscellaneous entomological papers, F. AI. Webster {Ohio Sta. Bui. 51, 

 ■iyp.S5-143, figs. 23). — Po])ulaT articles, partly compiled, but also eiiibodying much, 

 origiual investigation, on the asparagus beetle {Crioeerin asparagi), western corn- 

 root worn {Diahrotica longicornis), broad-striped Ilea beetle {Sysicna tivmata), blister 



