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MEMO IBS OF TEE QUEENSLAND MUSEUM. 
Fore •wings very large and broad, their longest marginal cilia 
only an eighth of tho greatest width. 
Fore wings with about 34 lines of diseal cilia which are 
dense; legs black, tarsi brown; antennas varicoloured, 
the funicle joints elongate; wings uniformly sooty distad 
of venation. Species enormous, the largest member of the 
family . . . . . . . . . . . . . . grotiusi Girault 
The species grotiusi is obviously related to the first group 
of species. 
2. Body wholly ferrugineous or yellow or partly one or the other 
(appendages excluded). Fore wings slender. 
Thorax golden yellow, the head and abdomen black. Marginal 
cilia a little shorter than the greatest width of the blade. 
Second funicle joint in male nearly twice the length of the 
first; in female, ovipositor much exserted, as long as the 
abdomen . . . . . . . . . . . . . . mendeli Girault 
Whole body ferrugiueous to golden yellow; marginal cilia 
somewhat longer than the greatest width of the blade. 
First funicle joint in male only slightly shorter than the 
second, both long, as are also the next three or four 
joints; female not known . . . . . . . . . . devriesi Girault 
Genus EUSTOCHUS Foerster. 
1. EUSTOCHUS DUBIUS new species. 
Male: — Length, 1*20 mm. 
Jet black, the legs brown, the coxas and antennas concolorous (except hind 
coxae). Fore wings sooty, the tarnation deepened under the marginal vein in 
the form of a rather broad fuscous stripe; discal ciliation absent under venation 
and for some distance distad, thus giving the appearance of a rather broad 
whitish stripe across the fore wing just distad of venation, since the hairless area 
distad of the brownish stripe is lighter than the ciliated area beyond; the same 
effect also proximad of the brownish stripe. Blade of hind wing uniformly 
clouded. Discal cilia of fore wing rather dense, the fore wing shaped as in 
species of Gonatocerus of the graceful type. 
"With the following remarkable structural characters: — Parapsidal furrows 
complete; seutellum larger than the scutum, divided across the middle by a 
distinct suture, the postseutellmn deeply divided from seutellum at apex but 
continuing its outlines and appearing as if the seutellum bore a deep transverse 
suture before apex ; metathorax long ; second abdominal segment occupying half 
of the surface, segment 3 only a third shorter than it, the abdomen ovate, its 
petiole very short, wider than long and guarded by a spine-like prolongation on 
each side from the second segment of the abdomen; thorax rough, propodeum 
