146 MEMOIRS OF THE QUEENSLAND MUSEUM. 



subequal 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, whiti.sh. Oblique hairless line ])resent. Stigmal and postmarginal veins longer than in 

 the genotype. One minute ring-joint present. Axillas separated. Abdomen depressed, obtusely 

 triangular, no longer than the thorax. Scutum with short, black not very dense pubescence, 

 the scutellum with much less pubescence. Like the genotype but the abdomen shorter. 



From one female caught on flowers of Ba'cltii, April 22, 1913 (H. Hacker). 



Habitat : Brisbane, Queensland. 



Type: No. HySOOH, Queensland Museum. Brisbane, the female on a slide. 



Genus MENISCOCEPHALUS Perkins. 



Head menisciform, the eyes widely separated in front, the axillai 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. Antenna) 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. Mesoscutum 

 about as long as the scutellum and bears appressed white setffi. AxillsB meeting inwardly. 

 Propodeum clothed with conspicuous silvery hairs. Wings hyaline, ihe 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. Antennae 9-jointed, no ring-joint the club solid. 



In the male the antennae 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 the.se joints; but the club is one and a half times longer than one of the funicle joints. 

 The axillae 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, 2 mm. Kubust. 



Head dark blue, the great punctures metallic green, the antenna; yellowish, more or less 

 sordid, largely owing to the dense clothing of setai, the club paler than the rest. In the male 

 the antenna', except the scape, are entirely infuscate. Mesonotuui dark purplish, opaque or 

 auboqaque, punctured like the head but not so deeply and coarsely; the scutellum very dull; 

 mesopleura blue, opaque. All the tarsi and the tips of the middle tibia; 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 antenna' inserted near the 

 Mioutli, their scrobes subobsolete, the scape slender, the flagellum clavate, one large ring-joint. 

 Thorax convex. Axillae separated by a distinct carina, otherwise broadly connate. Hind tibial 

 spurs double, the hind tibiae compressed; front coxa; large, together with their femur and tibia 

 strongly compressed or flattened, the front tibia not quite two-thirds the length of the front 

 femur. Aljdomeu short, triangular, depressed, the ovipositor not exserted. Frons broad. 

 Scutum with scattered, white, thickened seta;. Pore wings shaped as figured for Meiiiscorephalus 

 eximiua Perkins aud with the exception of the flattened front legs, large ring joint in the 

 antenna! aud 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, 

 sliort, guarded proximad by several short lines of coarse discal cilia, from thence proxiiii:id, the 



