102 MEMOIRS OF THE QUEENSLAND MUSEUM. 
but the frons barely visible from lateral aspect. Antenne inserted rather near the clypeus, the 
scrobes converging above, tolerably long. Mesopleurum finely polygonally lined or reticulated. 
Epistoma carinated between the antennz. Cheeks about as long as the eyes. 
Male:—-The same as the female but the antenne 11-jointed, one short ring-joint, the 
club 2-jointed. Funicle 1 much longer than wide, the following shorter. Funicle joints with 
numerous rather long hairs. 
From many female specimens and several males labelled ‘‘From Gall No. 20, H. Hacker.’’ 
Habitat: Brisbane, Queensland. 
Types: No. Hy 3019, Queensland Museum, Brisbane, four females and two heads 
on a slide, 5 females on a tag and one male head on the slide. 
3. RHOPALENCYRTOIDEA DUBIA new species. 
Female :—Length, 1.32 mm., excluding ovipositor, the latter extruded for a length nearly 
equal to that of the abdomen. 
Differs from the genotype in being more robust, the axille are distinctly separated for 
some little distance, the head slightly longer than wide, eyes somewhat longer than the cheeks. 
and the marginal vein is twice longer than wide yet somewhat shorter than the stigmal, the 
latter slightly shorter than the postmarginal. Very dark metallic purplish, nearly black, the 
base of abdomen blue, wings hyaline. Apex of scutellum greenish. Venation dark. First two 
pairs of tarsi and distal half or nearly of middle tibiw reddish yellow. Seutum projected 
between the axilla. Scutum and scutellum densely polygonally scaly and with very many 
scattered setigerous pin-punctures, the pubescence soft not conspicuous. Frons moderate. 
Funicle 1 subquadrate, 3 and 4 longest, a little longer than wide, the other joints slightly 
shorter. Pedicel subequal to funicle 3 or a little longer. Club a little over half the length 
of the funicle and plainly wider. Hairless line of fore wing with about six scattered lines of 
cilia proximad of it. Hind tibial spur single. Body slightly flattened. Scutellum at base at 
meson with a short carina (yet the axille plainly separated!)* Abdomen scaly. Scutellum 
extending to base of abdomen. Fore wings broad. 
Differs from Cerchysius australiensis in general coloration, the axille are separated and 
so on. From claripennis differs in not having the middle knees broadly reddish yellow (i.e., 
knee, proximal end of tibia, distal end of femur) nor the middle femur broadly so colored at 
base, in having the carina at meson of base of scutellum, the axille a little more separated, 
the body distinctly shorter not slender, the axille polygonally scaly, not very finely transversely 
lined and so on. 
Described from one female caught in a mangrove swamp along the Tweed River, May 14, 
1914 (A. P. Dodd). 
Habitat: Chindera, New South Wales. 
Type: No. Hy 3020, Queensland Museum, Brisbane, the specimen on a tag; head, fore 
wing and a®*hind tibia with slide type of Cerchysius robustus Girault. 
GENUS CERAPTROCERUS Westwood. 
1. CERAPTROCERUS EMERSONI new species. 
Female:—Length 1.75 mm. Form slender, the abdomen pointed conic-ovate, longer 
than the thorax. 
Metallic blue-green, the abdomen darker; first two pairs of legs pale yellowish; caudal 
cox concolorous at proximal half, caudal legs reddish brown. Face ventrad of antenne ivory 
yellow. Tips of hind tibie and the tarsi whitish. Fore wings sooty and with the following 
normal pattern: A narrow longitudinal clear streak from base to some distance distad of apex 
of venation and caudad of middle; this stripe is broken just opposite origin of marginal 
*In all other cases where the carina is present, the axille are joined to it, i.e. meeting 
dowardly. 
