Februar}-, '15] 



ENTOMOLOGICAL IN\-ESTIGATIOXS 



19 



Oethopteea. 



R. A. Cooley, Bozemari; Mont., will classify Orthoptera of the Northwest. 



B. H. TTalden, Xew Haven, Conn., will classify, in so far as other work will permit. 

 MEMBEACiD-i:, Jassid-e, Ceecopid^e and Fulgorid.e. 



Z. P. ]\Ietcalf, West Raleigh, N. C, will classify for permission to retain new and 

 unusual forms for further stud}', and to dispose of a fair number of such forms as he 

 may see fit. 



Jassid-E. 



E. D. Ball, Logan, Utah, will classify Xorth American forms under the usual con- 

 ditions. 



Aphidid-E. / 



C. P. Gillette, Fort CoUins, Colo., will classify, pro^dded data on food plants and 

 date and location of capture are furnished, and the pri^dlege of retaining the speci- 

 mens of special interest when there are duphcates. 



H. F. Wilson, CorvaUis, Oregon, will classify Aphididce if data on food plants, dates 

 and location of capture are furnished. The correct scientific name of the food plant 

 should be given. iMaterial in the subfamily Lachniim is especially desirable. 



ApHiDiDiE and Pstllid^. 



Edith M. Patch, Orono, Maine, will classify on receipt of mature material in good 

 condition with record of food plant accurately determined on which the species de- 

 veloped. 



Aletrodid^. 



J. R. Watson, Gainesville, Fla. 

 CocciD^ and Aleyeodid^. 



W. E. Britton, Xew Haven, Conn., will classify in so far as other work will permit. 



CoCCIDiE. 



J. G. Sanders, Madison, Wis., will classify species of the genus Lecanium. 

 R. A. Cooley, Bozeman, Mont., will classify the genera Chionaspis. Hemichion- 

 aspis and Phenacaspis of the world. 



R. H. Pettit, East Lansing, Mich., will classify in so far as other work will permit. 

 Heteropteea. 



Paul S. Welch, Manhattan, KansaSj will classifj', in so far as other work will permit, 

 aquatic Heteroptera. 



Saecophagid.e of the U. S. 



R. R. Parker, Amherst, Mass., will classify. 



Chiroxomid^ and Mycetophilid^. 



O. A. Johannsen, Cornell L'niversity, Ithaca, N. Y., will classify for the privilege 

 of retaining desiderata. 

 MrscoiD Flies. 



Charles H. T. Townsend, E. S. Xational Museum, Washington, D. C, wih classify 

 as time permits. Will send names in return for specimens. 



EMPIDIDiE. 



A. L. Melander, PuUman, Wash, (at the Bussey Institution, Forest Hills, Boston, 

 Mass., until June), will determine Empididce (Diptera) for the privilege of retaining 

 desiderata. 



Syrphid^. 



A. L. Lovett, CorvaUis, Oregon, wiU determine if duphcates are sent. 

 Itoxidid^. 



E. P. Felt, State Museum, Albany, X. Y., wiU classify provided the midges are new, 

 from new localities or have been reared and food record is available. 



