413 



1919^ and 1 male (paratype) reared from the same host, 

 Kaimidii, Oahu, Feb. 2, 1919 (Timberlake). This is un- 

 doubtedly an immigrant species, and was presumably intro- 

 duced with the host years ago from some part of the Orient. 

 It belongs to what appears to be a distinctly Oriental and 

 Australian group of Anorjynis. 



Xanthoencyrtus Ashmead. 



Xanthoencyrtus Ashmead, Cauad. Entom. vol. :>4, p. 302, 



1902. 

 Scelioencyrtas Girault, Mem. Queensland jMuseum, Vol 4, 



p. 161, 1915. 

 Mirastymuchus Girault, Journ. X. Y. Entoui. Soc, vol. 



23, p. 166, 1915. 



Before the descriptions of the four new species of Xaiith- 

 oencyrtus published in Part I of this paper* had appeared 

 in print, three more were discovered on Oahu and Maui 

 mainly through the efforts of Mr. Bridwell. Tt is becoming 

 evident, therefore, that probably only a small beginning has 

 been made in elucidating our Hawaiian species, as there is 

 no apparent reason why each island of the group should not 

 be represented by one or more species. Fp to the present 

 time they have found only on Laysan, Oahu and Maui, 

 although the introduced species, fnllawayi, occurs on Hawaii. 



Our endemic species have been found chiefly if not 

 entirely in the tussocks of Eragrostls variabilis, a coarse grass 

 which grows in great profusion on the steep sides of the bar- 

 ren foothills, and less luxuriantly in similar rocky places with- 

 in the native forests, as well as in regions at lower elevatious 

 that have much less rainfall. This grass is often infested with 

 a species of mealybug, Tvionymus insidaris Ehrhorn, which 

 serves as the host to these little parasites. Although apterns 

 is the only species that has been actually reared, there seems 

 to be no doubt that the others also parasitize this same mealybug 



Troc. Haw. Entom. Soc. vol. 4, Xo. r. pp. 201-206. July. 1919. 



