146 MEMOIRS OF THE QUEENSLAND MUSEUM. 
subequa\ to funicle 3, a little shorter than 1 which is longest, nearly thrice longer than wide; 
funicle 6 somewhat longer than wide. Ovipositor inserted a little beyond proximal half. Legs 
pale, whitish. Oblique hairless line present. Stigmal and postmarginal veins longer than in 
the genotype. One minute ring-joint present. Axilla separated. Abdomen depressed, obtusely 
triangular, no longer than the thorax. Scutum with short, black not very dense pubescence, 
the seutellum with much less pubescence. Like the genotype but the abdomen shorter. 
From one female caught on flowers of Beckea, April 22,°1913 (H. Hacker). 
Habitat: Brisbane, Queensland. 
Type: No. Hy 3096, Queensland Museum, Brisbane, the female on a slide. 
GENUS MENISCOCEPHALUS Perkins. 
Head menisciform, the eyes widely separated in front, the axille in a triangle with 
extremely wide base, the caudal ones close to or touching the eye margins, the sculpture 
consisting of very large deep punctures. Mandibles short, wide, with two acute teeth at the 
apex. Antenne short and stout, inserted far below the middle of the face, the funicle joints 
short and becoming wider toward the club, clothed with short bristly black hairs. Mesoseutum 
about as long as the scutellum and bears appressed white sete. Axille meeting inwardly. 
Propodeum clothed with conspicuous silvery hairs. Wings hyaline, the marginal vein very 
short, subquadrate, the stigmal moderate, shorter than the marginal, the postmarginal 
subobsolete. Abdomen short and wide, depressed above, subtriangular, the ovipositor slightly 
exserted. Antenna 9-jointed, no ring-joint the club solid. 
In the male the antenne are inserted much nearer the middle of the face and the 
six funicle joints are elongate, subequal, each constricted in the middle and bearing above and 
below the constrictions a whorl of long hairs, the pedicel being much shorter than any one 
of these joints; but the club is one and a half times longer than one of the funicle joints. 
The axille are well separated inwardly. The marginal vein is rather longer than with the 
female. Genitalia almost entirely extruded. 
1. MENISCOCEPHALUS EXIMIUS Perkins. Female; male. Genotype. 
Length, 2mm. Robust. 
Head dark blue, the great punctures metallic green, the antennz yellowish, more or less 
sordid, largely owing to the dense clothing of sete, the club paler than the rest. In the male 
the antennz, except the scape, are entirely infuscate. Mesonotum dark purplish, opaque or 
suboqaque, punctured like the head but not so deeply and coarsely; the seutellum very dull; 
mesopleura blue, opaque. All the tarsi and the tips of the middle tibiae pale, white or yellowish. 
Abdomen shining blue across the base. 
Habitat: Bundaberg, Queensland. Internal parasite of jassids. 
Type: Most likely in the entomological collection of the Hawaiian Sugar Planters’ 
Association, Honolulu. 
‘« Form robust, the head thin, large, convex, lenticular, the antennz inserted near the 
mouth, their scrobes subobsolete, the scape slender, the flagellum clavate, one large ring-joint. 
Thorax convex. Axille separated by a distinct carina, otherwise broadly connate. Hind tibial 
spurs double, the hind tibiz compressed; front coxe large, together with their femur and tibia 
strongly compressed or flattened, the front tibia not quite two-thirds the length of the front 
femur. Abdomen short, triangular, depressed, the ovipositor not exserted. Frons broad. 
Scutum with scattered, white, thickened sete. Fore wings shaped as figured for Meniscocephalus 
eximius Perkins and with the exception of the flattened front legs, large ring joint in the 
antenne and the 3-jointed club, this specimen agrees with the description of that species. 
Marginal vein twice longer than wide, subequal to the stigmal; oblique hairless line present, 
short, guarded proximad by several short lines of coarse discal cilia, from thence proximad, the 
