Vol. XXVl] ENTOMOLOGICAL NEWS 35 



Identification of Specimens. 



For the mutual benefit of the collector or amateur entomologist, and 

 the specialist who desires to examine all the material possible in the 

 groups in which he is interested, the NEWS reserves space for listing 

 those who are willing to determine such material. The collectors must 

 bear in mind that the material must be in first class condition accom- 

 panied with full data as to date and location of capture ; must be pinned 

 (excepting Coccidae and other minute insects which require special 

 treatment) and properly packed. Specimens not in such condition will 

 be returned at the expense of the sender. Hints in packing insects for 

 transportation may be found in this number, page 33. The transporta- 

 tion to the specialist must be prepaid. The specialist is to have the 

 privilege of retaining the first set of any species he may desire. 



Any specialist not listed but willing to make determinations, and any 

 of those listed below who no longer care to do such work, please advise 

 the editor of this journal. 



The following specialists will determine material in their respective 

 groups, from North America, unless otherwise noted. Those names 

 preceded by (*) should be communicated with before sending speci- 

 mens, as their time for such work is limited, or they are interested 

 only in special groups or genera. 



DIPTERA. Chironomidac and Mycetophilidac : O. A. Johannsen, Cor- 

 nell Univ., Ithaca, N. Y. ; Empididae : A. L. Melander, Pullman, 

 Wash.; Syrphidac: A. L. Lovett, Corvallis, Oreg. ; Acalyptratae, 

 especially Ephydridac : E. T. Cresson, Jr., Acad. Nat. Sci., 1900 Race 

 St., Phila, Pa. 



HEMIPTERA. Jassidae: E. D. Ball, Logan, Utah; Aphididac (material 

 in this family should be provided with complete data on food plants, 

 correct scientific names of same, date and location of capture) : C. P. 

 Gillette, Fort Collins, Col., H. F. Wilson, Corvallis, Ore., Edith M. 

 Patch, Orono, Me.; Psyllidae (see note under Aphididae) : Edith M. 

 Patch, Orono, Me.; Aleyrodidac : J. R. Watson, Gainesville, Ela. ; 

 Coccidae : *J. G. Sanders, Madison, Wis. ; Chionaspis, Hemichion- 

 aspis and Plicnacaspis of the world : R. A. Cooley, Bozeman, Mont. 

 HYMENOPTERA. Tcnthredinidac and Uroccridae: *A. D. MacGillivray, 

 603 W. Michigan Ave., Urbana, 111.; Aphidlinac and Opliiinac : A. B. 

 Gahan, College Park, Md. ; Chalcidoidca : A. A. Girault, Nelson 

 (Cairns), Queensland, Australia; Mcgastimus: C. R. Crosby, Cor- 

 nell Univ., Ithaca, N. Y. ; Sphccidac : II. T. Fernald, Amherst, Mass. ; 

 Apoidca: E. G. Titus, Logan, Utah; from Nebraska, Myron H. 

 Schwenk, Lincoln, Neb. 



MALLOPHAGA & ANOPLURA. *V. L. Kellogg, Stanford Univ., Cal. 

 Nr.r ROPTERA. W. E. Hinds, Auburn, Ala. 



( IKIHOPTERA. *J. A. G. Rehn, Acad. Natural Si 'imccs, Phila., I 'a. 

 LEPIDOPTERA. Rhopalocera : Henry Skinner, Acad. Natural Sciences, 

 Phila., Pa. 



