STUDIES ON CHALCID-FLIES OF THE SUBFAMILY 



LEUCOSPIDINAE, WITH DESCEIPTIONS OF 



NEW SPECIES. 



By Clara Jamieson Weld, 

 Volunteer Aid, Division of Insects, United States National Museum. 



INTRODUCTION. 



While arranging the collection of Leucospidinae and Chalcidinae 

 in the United States National Museum, a number of undetermined 

 specimens of Leucospis and related genera were discovered. In try- 

 ing to determine these it became necessary to go over the literature 

 of the group, and the present paper is an outgrowth of the work thus 

 started on this interesting group of parasitic Hymenoptera. The 

 study is based not only on the material in the National Museum, but 

 an attempt has been made to assemble all the available unworked 

 material in the other leading American museums, specimens being 

 borrowed particularly from Cornell University and the Academy of 

 Natural Sciences at Philadelphia. The types of several species in the 

 latter institution have also been studied, so that the paper represents 

 the results of studies on practically all of the material available in 

 this country, comprising some 36 species. Of the 14 new species here 

 described, one is from the United States, four from Central and 

 South America, three from India, two from China and Japan, and 

 four from the Philippine Islands and Straits Settlements. 



The last comprehensive study of this group was made by Schlet- 

 terer in 1890, and his monograph has been used as the basis for the 

 present study. At the end of the paper will be found a list of the 

 species described since 1890. These are arranged alphabetically by 

 genera, with the locality indicated and with a short reference to the 

 original description. In the bibliography which follows, a fuller 

 citation is given and the papers are arranged chronologically under 

 authors, bringing the literature from Schletterer to 1920. In the 

 treatment of the various genera in the body of the paper, references 

 have been omitted, the purpose being simply to supplement Schlet- 

 terer's paper, which should be used in connection with this in the de- 

 No. 2427— Proceedings U.S. National Museum. Vol. 61 ,Art. 6. 



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