185 



introduced species and possibly three or four which apparently 

 failed to become established.' 



SOUKCES OF THE HaWAIIAX ExCYRTIDAE. 



The family is represented in the endemic fauna by species 

 belonging in at least five genera, of which Anagyrus Howard 

 has about a dozen to fifteen species falling in a rather distinct 

 group almost worthy of generic distinction. Xanthoencyrtus 

 Ashmead has three or possibly more species, none of them hav- 

 ing been hitliertofore described and only one recorded under 

 the name of Edroma species. Eclithrogonatopus Perkins has 

 at least three species, E. hawaiiensis Perkins, E. molohaiensis 

 (Ashmead) and one undescribed. The two remaining genera 

 are represented by one or two species each, and are of unusual 

 interest because of the structural peculiarities in the male sex. 

 The first of these interesting and probably wholly endemic 

 genera is Coelopencyrtus Timberlake with two species parasitic 

 in the larvae of Odyiierus, one of which as already stated Mr. 

 Swezey has noted and figured under the name of Ageniaspis 

 species. The other genus and species is Nesencyrtus haalae 

 (Ashmead), of which Dr. Williams has reared a large series 

 from the larvae of N esoprosopis pubescens Perkins taken from 

 an old rotten log near the Volcano House at Kilauea, Hawaii, 

 in February, 1918. 



The immigrant and introduced species belong in about 

 twenty genera and have come mostly from the Oriental and 

 Australian regions apparently, although at least three were 

 introduced from Xorth America, these being Helegonutopus 

 2)seudophanes Perkins, Saronotum aviericanum Perkins and 

 Aphidencyrtus scliizonewae (Ashmead). Cameron's species 

 Botliriencyrtus insularis is of uncertain origin although judg- 

 ing by the descripttion it seems to be an ally of Bothriencyrtiis 

 planiformis (Howard) of California, which is the type of 

 this new s'enus. 



"These four species are Botliriencyrtus insularis (Cameron), Homalo- 

 tylus flaminins (Dalman). Microtcrys flavus (Howard) auJ Contperiella 

 bifasciata Howard. 



