183 



ANNUA"L ADDRESS.' 



Observations on the Sources of Hawaiian Encyrtidae 

 (Hymenoptera). 



BY P, H. TIMBERLAKE. 



In 1901 when Ashmead published his descriptions of the 

 Hjmenoptera Parasitica of the Hawaiian Islands in the Fauna 

 Ilawaiiensis, Vol. 1, Pt. 3, only five species of Encyrtidae^ 

 were known to occur in these Islands. Of these one species 

 was described by Cameron in 1886 from a specimen collected 

 by Blackburn. This species, Encyiius insularis, belonging 

 apparently to the new genus Botliriencyrtus,- has not been 

 found since and is presumably an immigrant species that failed 

 to become established. Two other species described as new are 

 apparently endemic and may be known in the future as 

 E chthrogonatopus molohaiensis and Nesencyrtus kaalae, having 

 been wrongly referred by Ashmead to Microterys and Adelen- 

 cyrtus respectively. The fourth species is considered to l)e the 

 common Encyrtus infelix (Embleton) incorrectly identified by 

 Ashmead as Encyrtus fuscus (Howard) and now known to be 

 nearly cosmopolitan. A fifth species not mentioned by Ash- 

 mead was described in 1898 by Dr. Howard as Blepyrus mars- 

 deni, and which I have recently synonymized with Blepyrus 

 mexicanus Howard. 



In 1907 Mr. Swezey published his observations and figure 

 of a small Encyrtid, under the name of Ageniaspis species, 

 which he found parasitizing the larvae of Odynerus nigripennis 



*The President being absent in Army service, the Vice-President gave 

 the Annual Address. — [Ed.] 



1 In the sense used here the Encyrtidae inchide only the group known 

 as the Encyrtinae by most modern writers, to the exclusion of the 

 Eupelmidae, Signiphoridae and Aphelinidae which have been associated 

 with the Encyrtidae by some authorities. 



~ The new genera and species mentioned will be described in an 

 appendix to this paper. 



Proc. Haw. Ent. Soc, IV, No. i, June, 1919. 



