191 



There are also two species of Encyrtidae parasitic on Psen- 

 dococcus saccharifolii (Green) in the Islands, which were al- 

 most unquestionably brought in with their host. Neither of 

 these parasites have been found elsewhere, but as their host 

 has a known distribution in India it seems likely that both 

 Ooccid and parasites were introduced in importations of sugar- 

 cane from some part of the Orient. The more abundant one 

 of these parasites, Pseudococcohius terryi (Fullaway), has 

 been found on Hawaii, Maui and Oahu and proliably occurs 

 on Kauai, as it is apparently distributed throughout the Isl- 

 ands wherever its host is found. The other parasite, Xan- 

 thoencyrtus fullaivayi Timberlake, is much rarer, and I have 

 seen only two female specimens. One of these, which may 

 have been the type of Fullaway's description of the supposed 

 male of terryi. was found in a vial without data together with 

 specimens of terryi. The second specimen was reared from 

 material of its host collected by Mr. Swezey in August, 191 G. 

 at Pahala, Hawaii. 



Adelencyrtus odonaspidis Fullaway is a species of which 

 we have no direct clew as to its place of origin. Its host, Odo- 

 naspis ruthae Kotinsky, has "not been found elsewhere, but 

 its food-plant, Cynodon dactylon, is known to be indigenous in 

 the warmer parts of Europe and Asia although now spread 

 throughout the world. It is quite possible, therefore^ that both 

 host and parasite may some time be traced back to some part 

 of the Orient, although they may have reached the Islands 

 from some intermediate station. 



Concerning the origin of at least two other species of our 

 Encyrtidae we have as yet even less knowledge. Anagyrm, 

 which is represented in the endemic fauna, has also one or 

 possibly two, introduced species. One of these, the large brown 

 species with black antennae, which may be known as Anagyrus 

 nigricomis Timberlake, does not seem to have been recorded 

 hithertofore. It is widely spread on Oahu in both the lowlands 

 and mountains, and I have seen specimens from Kauai. It 

 has therefore been in the Islands for a considerable number of 



