249 



DESCRIPTION OF GENERA AND SPECIES. 



Mciiiscoceplialus gen. nov. 



Robust ; the head menisciform, the eyes widely separated in 

 front, the ocelli in a triangle with extremely wide base, the pos- 

 terior ones close to or touching the eye-margins, the sculpture 

 consisting of very large deep punctures. Mandibles short, wide, 

 and with two teeth at the apex. Antennae in the female short 

 and stout, inserted far below the middle of the face, the funiclar 

 joints short, and becoming wider towards the club, clothed with 

 short bristly-black hairs ; in the male the six funiclar joints are 

 subelongate and equal, each constricted in the middle, and bear- 

 ing above and below the constriction a whorl of long hairs, the 

 pedicel being much shorter than one of these joints ; the club on 

 the other hand is one and a half times as long. In the male sex 

 xhey are inserted much nearer the middle of the face. The me- 

 sonotum is about as long as the scutellum and bears appressed 

 white setae ; the axillae meet inwardly in the female but not in 

 the male, the propodeum is clothed with conspicuous silvery 

 hairs. Wings without a pattern in either sex, the marginal vein 

 very short (rather longer in the male) the stigmal moderate, the 

 post marginal not (or hardly) developed. Abdomen short and 

 wide, depressed above, subtriangular, the ovipositor slightly 

 exserted, the male genital armature almost entirely so. 

 For structural characters see Plate XVIII, fig. 7-9. 



Mciiiscoccphaliis c.viiiiius sp. nov. 



Head dark blue, the great punctures metallic green, the an- 

 tennae yellowish, more or less sordid, largely owing to the 

 dense clothing of setae, the club paler than the rest. In the 

 male the antennae, except the scape, are entirely infuscate. 

 Mesonotum dark purplish, opaque, or subopaque, punctured 

 like the head, but not so deeply and coarsely; the scutellum 

 very dull, the axillae touching inwardly in the female, well 

 separated in the male, mesopleura blue, opaque. All the tarsi 

 and the tips of the middle tibiae pale, white or'' yellowish. Abdo- 

 men shining blue across the base. Length about 2 mm. 



HAB : Bundaberg, Queensland. An internal parasite of a 

 Jassid. 



