19 



Praying Mantis : Several egg-capsules were seen in the Hama- 

 kua District. 



Gryllotalpa africaniis: Not seen on the island. 



Elimaea appendiciilata: A few found in all Districts. 



Xiphidium z'aripenne: Very abundant in nearly all of the plan- 

 tations, but none at Puako. They live largely upon leaf- 

 hoppers. 



NEUROPTERA 



Anax Junius: Conspicuous everywhere. 



A Hemerobiid : Common in cane fields. 



Chrysopa microphya: This lace-wing fly abundant in many cane 

 fields, also on trees and shrubs, feeding upon leaf-hoppers, 

 mealy bugs, scale insects, and probably the nymphs of Si- 

 phanta acuta. Several larger species of lace-wing fly were 

 found feeding on leaf-hoppers in fields at the higher eleva- 

 tions — 1,600-2,500 feet. 



MAY nth, 1905. 



The fifth regular meeting was held, Mr. Perkins in the chair. 

 Dr. Walter Evans of Washington was present as a visitor. 



Election of Member — Mr. Wm. Weinrich Jr., of Sisal. 



Mr. D. L. Van Dine read the following " Notes on a Compar- 

 ative Anatomical Study of the Mouth-Parts of Adult Saw-Flies:' 



In beginning the study of the mouth-parts of any group of 

 insects, one naturally commences with the lowest or most general- 

 ized members, expecting of course to find the mouth-parts of 

 these older forms to present the most generalized condition to 

 be found in the order. Hence, in beginning a study of the com- 

 parative anatomy of the adult Hymenopterous mouth several 

 years ago in the entomological laboratory of Stanford University, 

 under the direction of Prof. Vernon L. Kellogg, the writer began 

 on those of Tenthrcdinidae. A few generalizations on the draw- 

 mgs made in connection with the study may prove interesting to 

 the members of this Society. 



Following Cresson's list all the sub-families were studied with 

 the exception of Hylotominae. The parts present difficulty in dis- 

 section for the reason that they are intimately joined or connected 

 by a very efficient membrane or tissue. The exception is the man- 

 dibles which act independently. To further insure the mutual 



