ENTOMOLOGY. 313 



pillars of the latter are advised. The orange-leaf roller ( Tortrix citrana) 

 brassy cutworm [Tcvniocampa rufula), corn -ear worm {ReUothis anni- 

 f/era), aud tent caterpillars {(JUsiocdmpa thoraci€<(, C. californica, and 

 C. constrict a) are also treated. Experiments were made with arseniu- 

 reted and snlpliareted hydrogen to learn tbeir value as insecticides, but 

 they proved more expensive aud less efficacious than hydrocyanic acid 

 gas. 



Report on entomological icork in Oregon and California; notes on Aus- 

 tralian importations^ A. Koebele (pp. 33-30), — Some notes are given on 

 the hop louse [Phonxlon humnli) and on several species of Coccinellida; 

 that preyui)on it. The \M\y\)\v<]. Rhizohius ventraliSy recently imported 

 from Australia, is being naturalized and is destroying Lecaninm olece 

 aud L. hesperiduni. Syneta alhida, Carporapsa pomonella, and a Tortri- 

 cid larva were found injuring fruit in Oregon, 



Xotrsonthe insects of Missouri for 1893^ M.U.Murtfeldt (pp, 37—45), — 

 This treats of the army worm [Leucania nnipuncta), several locusts, 

 leaf hoi)pers [Ormenis pruinosa)^ osage orange pyralid {Loxostege 

 maclura'), horn fly, fruit-bark beetle {Scolytus rugulosus), the pear-tree 

 clear- wing borer {^l^geria pyri) attacking apple trees, the peach or plum 

 bark louse {Lecaninm persicw), the linden-leaf roller {Pantographa 

 linata), and the trial of combined insecticides and fungicides. There 

 was an outbreak of the Lccanium persica^^ of which description and life 

 history are given, and kerosene emulsion and like insecticides advised 

 as remedies, Pantographa linata is also noted rather fully. 



Insects of the season in Iowa in 1893, H. Osborn (pp. 46-52). — Several 

 species usually inconspicuous were seriously abundant. Notes are 

 given on the horse botfly, horn fly {Hainatohia serrata), clover-hay 

 worms {Pyralis costalis and P. fari)ialis), clover-seed caterpillar 

 {Grapholitha intcrstinctana), sod web worm {Crambus exsiccatus), wheat- 

 head army worm {Lencania a?6/Zmefl), leaf folder {Teras minnta), leaf 

 skeletonizer [Pempelia hammondi), Nomophila noctuella, and clover- 

 seed midge {Cecidomyia leguniinicola). Experiments were made upon 

 eggs of the horse botfly, and it is concluded that they hatch only by 

 the assistance of the horse's tongue, and that the period for hatching 

 is from 12 to 40 da^^s after their deposition. Scraping off the eggs or 

 their destruction by means of washes is advised. 



Report on insects injnrions to forest trees, A. <S'. Paclcard (pp, 53-59). — 

 There appeared to be a remarkable dearth of insects attacking forest 

 foliage, but notes are given on the spruce worm {Tortrix fumiferana), 

 larch worm {Xematns erichsonii), tir leaf-sheaf worm {Blastobasis chal- 

 cofrontella), fourteen -flapped geometrid and several lepidoptera bred 

 from larva^, on forest trees. Many forests in Maine that suffered in 

 1878-'87 from the spruce worm aud larch worm are rapidly recovering 

 and putting out new growth, 



A very complete index accompanies the rej>ort. 

 9467— Ko. 4 5 



