1896.] ENTOMOLOGICAL NEWS. 197 



Forster's collection of Ichneumonidae. 



Types of Handlirsch. Kohl, Mayr, deSaussure, Sichel, Rein- 

 hard, Forster, Giraud, Lucas, Mocsary, Friese, Morawitz, 

 Schmiedeknecht, Konow, Stein and Ruthe, Tschek, Schletterer. 



DIPTERA. 



The so-called " Hauptsammlung" arranged by Schiner with 

 numerous old, original specimens of Meigen, Wiedemann, 

 Schummel and others; in great part revised by Brauer. 



The collection of Winthem with types of Meigen, Wiedemann, 

 Egger, Dr. Adam Handlirsch and T. Bergenstamm. 



Part of Becher's collection. 



Low's collection of Cecidomyidae. 



The chief value of the collection is the great number of orig- 

 inal specimens of Schiner, Brauer, Low, Bergenstamm, Egger, 

 Meigen, Rondani,. Schummel, Wiedemann and many others. 



NEUROPTERA. 

 Collection determined and arranged by Brauer, and contains 

 types of this author as well as some of Hagen, de Selys, McLach- 

 lan, Pictet, Karsch, etc. 



\ 



A Plea for an Improvement in Entomological Pins. 



By Edw. a. Klages, Crafton, Pa. 



The Feldman Collecting Social, at a recent meeting, having 

 advocated the adoption, among collectors, of a uniformity in 

 the length of pins, the writer regarding this of much importance, 

 has taken advantage of the long desired opportunity of present- 

 ing some facts about the pins we now use, at the same time sub- 

 mitting tables showing what dimensions would be best suited 

 for the different orders. 



In insects, as a general rule, increase in size means increased 

 length, breadth and thickness, hence it follows that, if for a 

 small specimen, a thin pin of a suitable length will be correct; 

 that for a larger specimen, a proportionately thicker and longer 

 pin should be used. It is needless to say that pins made with 

 this object in view would be best suited for all orders in which 

 the thickness of the body varies to a considerable extent, like in 

 the Coleoptera, but in ordefs where this variation is not so great. 



