■ HYMEN OP TERA 685 



Male agrees generally in structure with the female, but is pale brown in colour, 

 the basal or more than one of the abdominal segments often darker, sometimes the 

 whole abdomen of a darker hue than the head and thorax. Length 3 — 5 mm. 



Hab. Oahu ; appeared first rather numerously in 1900, since which time it has 

 been very common. It attacks various Longicorn Coleoptera, notably the species of 

 Clytarlus and Plagithmysus. I have seen a specimen, apparently identical, from 

 New Zealand. 



Subfam. SPATHIINAE. 



HoRMius Nees. 



(i) Hormius{^.) peregi'inus, sp. no v. 



Head and thorax ferruginous or reddish brown varying in depth of colour, the rest 

 of the thorax darker, blackish, more or less tinged with red, basal and usually the apical 

 abdominal segments dark, the second segment always pale yellowish, legs testaceous, 

 the hind femora more or less dark at least on the apical portion outwardly, their tibiae 

 also dark except on the whitish basal portion, antennae testaceous basally, becoming 

 dark apically, ovipositor black on the apical third or less, the rest pale. 



Head dull, transversely rugose posteriorly ; mesonotum very finely punctured, dull, 

 in the middle posteriorly with some more or less longitudinal wrinkles, scutellum with 

 a few strong costae anteriorly ; propodeum with a close more or less reticulate rugose 

 sculpture like that of the first abdominal segment, the areolation effaced ; stigma dark 

 fuscous, pale at base and sometimes at the apex. Hind femora exceedingly robust and 

 incrassate, armed beneath with teeth, the basal of these placed before the middle, a 

 longer one is placed nearly at the middle and is closely followed by about five or six 

 others which decrease in size towards the apex of the femora. Basal abdominal 

 segment subparallel-sided, about twice as long as wide in the male, less elongate in the 

 female, only about half as wide as the apex of the second segment, which like the 

 following is only very minutely sculptured. Ovipositor longer than the abdomen. 

 Length 3-5— 4'5 mm- 



Hab. Oahu, Honolulu ; of recent introduction. 



Obs. I am unable to place this insect generically with any certainty. It appears 

 to show some affinity with the Helconinae. 



Spathius Nees. 



(i) Spathius perdebilis, sp. nov. 



Male brown, the propodeum, petiole of abdomen and its apical segments, the 



lateral lobes of the mesonotum more or less, dark brown or infuscate, head paler 



yellowish brown, legs yellow, as also the several basal antennal joints, the other joints 



infuscate. Neuration mostly pallid, the stigma fuscous, pale at base. 



88—2 



