HYMENOPTERA 657 



(2) Spalangia simplex, sp. nov. 



Black, the head usually with slightly greenish tinge, the thorax more brassy and the 

 fourth segment of the abdomen also slightly metallic, the post-petiolar one deep black. 

 Tarsi yellowish or testaceous, apex of tibiae, the knee joints and the trochanters (more 

 or less) also pale, reddish or testaceous. Front of head smooth and shining, with 

 at most a few feeble punctures, but with a distinct fine medio-frontal crenate or punctate 

 line reaching the anterior ocellus. Antennae of the female with the funicle joints short, 

 increasing in width towards the club, and being mostly transverse, pedicel elongate, 

 about as long as the two first funicle joints together, club as long or rather longer than 

 the three last joints of the funicle. In the male the antennae are more elongate, the 

 funicle joints all much longer than wide, the first much the longest, three times as long 

 as wide, nearly as long as the next two together, the pedicel very small, hardly half the 

 length of the first funicle joint, club about as long as the two preceding joints. 



Pronotum smooth and shining, but closely punctate on the neck and with a trans- 

 verse curved crenate line near the hind margin ; mesonotum with a similar submedian 

 transverse crenate line and with one or two pits behind it on the mediodorsal line. 

 Axillae marked off posteriorly by strong crenate lines, a less distinct one between 

 scutellum and postscutellum ; a distinct transverse crenate line on the former behind the 

 middle ; propodeum acutely spined on each side, with a median longitudinal double 

 crenate line and with crenate margins enclosing two large smooth spaces, the pleura 

 roughly sculptured. Mesonotum and scutellum smooth and shining except as above 

 noted. Wings clear, neuration brown. Pedicel of the abdomen with numerous fine 

 longitudinal raised lines, twice as long as wide in the J, but a good deal shorter in the 

 female, rest of abdomen smooth and polished. Length r^ — 2 mm. 



Hab. Oahu, Honolulu. 



Fam. EULOPHIDAE. 



To this enormously large and difficult family belong a considerable number of 

 endemic Chalcids. The specimens preserve very badly in the tropics and, a few hours 

 after death, distort and shrivel in such a manner as to preclude any proper description 

 from being made, unless they are preserved in a special manner. They are best 

 described when freshly killed. Though I have collected a considerable amount of 

 material, I do not think it worth while to describe any new forms, until still more 

 comprehensive and better preserved material is available. Many species of Aphelininae 

 and some species of other subfamilies have been introduced for economic purposes, 

 many also accidentally. To the species described by Ashmead in Vol. i. of this work 

 two species only need be added here. 



