402 



ophom inacquolis (Fabricius). It does not seem to be nearly 

 so common here now, as it was when Perkins first fonnd it. 



ApanteJes sp. According to ]\[r. Gahan, onr banded- winoed 

 Apanteles is entirely distinct from any known North Amer- 

 ican species. The species was first taken in 1911 at Honolnln, 

 nnless it is one of those mentioned by Perkins in 1910 without 

 name or description. Mr. Swezey has reared it from 

 Opogoim. 



Optus sp. The small Op'ius that has been reared recently 

 by Messrs. Swezey, Bridwell, and the writer from the Lantana 

 Agromyza on Oahn was determined l)y ]\Ir. Gahan as most 

 probably a new species close to nanus Provancher. 



Ilonniupferus sp. This is another recent immigrant which 

 has been taken in Honolnln, Palolo, Xiu, Knlionon, and on 

 Tantalns by several collectors. The first specimens examined 

 by the writer were taken by Mr. Swezey in 1914. 



Pteromalidae. 



Pachyneuron siphonophorae (Ashmead). This species is 

 readily recognized in the female sex by having three ring- joints 

 and only five fnnicle joints. Mr. A. A. Girault has recently 

 erected a new genus or subgenus, Propacliyneuroniay for this 

 species, but it is hardly worth recognition as the male sex does 

 not show the supposed generic character. He has also synony- 

 mized Pacliy neuron micans Howard and P. aphidivorum Ash- 

 mead with it, the latter incorrectly, as Mr. Gahan's notes on 

 the ty})es, taken \\lien they Avere in a better state of preserva- 

 tion than at present, show that aphi(ru'oru)n has only two ring- 

 joints. 



This species is hyper])arasitic in Aphidids, and with us 

 attacks both Ephedrus incompletus and Diaeretus chenopodia- 

 phidis. It has been found at or near Honolulu, and at Wai- 

 luku, Maui, by Mr. Swezey. 



Pacliynciiron si/rplii (Ashmead). This species was reared 



