( 28 ) 



Walker gave 35 mm., Meyrick says the expanse is 23—25 mm.) might be identical ; 

 bnt 1 have now been able to examine a specimen from Parkside, S. Australia, which 

 answers in every detail to Guenee's description, and proves to be quite distinct. I 

 refer it for the present to Larentia Tr., as it agrees in neuration and structure, 

 thongh I doubt its being really congeneric with typical European species of the 

 genus. lu the forewiugs vein 6 is stalked with 7, 8, 9 ; 10 from just before end of 

 cell anastomoses with 11, and again with 8, 9 ; in tlie hindwings tlie discocellular 

 is augulated below, and the radial rises from below the centre ; the antennae of the 

 cJ are bipectinated. 



Monochyria gen. no v. 



Forewings : elongate ; costa straight, but shouldered at base ; apex bluntly 

 rounded ; hindraargiu strongly curved. 



Ilintlwings : narrow ; both angles and hindmargin rounded. 



Antennae of S armed with fascicles of cilia ; face produced below ; paljii 

 porrect, scjuamons, the tliird joint deflexed ; tongue and frenulum present ; abdomen 

 with the hind segments laterally tufted. 



Neuration: forewings, cell half the length of wing; discocellular vertical 

 above, oblique below ; first median nervule at three-fourths, second shortly before 

 third, the median vein itself abruptly upturned at the end ; radials normal ; 7, 8, 9, 

 stalked from end of cell ; 10 and 11 stalked, 10 anastomosing with 7, 8, 9, forming 

 a single areole ; hindwings with discocellular oblique below ; costal anastomosing 

 with subcostal for nearly three-fourths of cell ; veins 6 and 7 hardly stalked ; second 

 median well before third. 



Type : Monochyria mi-idicinctata Guen. (? =:■ poseata Hiib.). 



Agreeing in neuration with Tepkroclystia Hiib., to which, however, it cannot 

 well be referred. 



18. Perizoma constricta sp. no v. 



Forewings : grey, snffused with fawn-colour ; basal patch very small, limited 

 by a thick vertical blackish line ; central fascia narrow, darker, edged with irregularly 

 crenulate lines starting from blackish costal spots : inner edge from shortly before 

 middle of costa to beyond middle of inner margin, bent slightly above median vein ; 

 outer edge from two-thirds of costa to two-thirds of inner margin, straight ; a central 

 waved dark line; a black linear cell-spot ; all the veins marked in black across the 

 fascia ; the usual {)ale bauds, traversed by a dark line, on each side of the central 

 fascia are in this insect nearly of the ground colour ; space between outer band and 

 submarginal line brown above the median vein ; submarginal line pale grey, 

 Innnlate, the lunules below costa, beyond cell, and above inner margin followed by 

 black wedge-shaped markings ; submarginal area below median vein diffusely paler, 

 edged above by a blackish horizontal streak above the median ; marginal line 

 formed of pairs of black spots ; fringe pale grey, chequered with darker, and with a 

 dark grey dividing line. 



Ilindicingx : j)ale grey, with dark cell-sjiot, a curved postmedian line, marked 

 with darker on the veins, followed by a slightly paler grey fascia before the darker 

 grey marginal border. 



Underside of forewings dark grey, of hindwings lighter, with the markings 

 showing through. Head, thorax, and abdomen grey, sometimes tinged with fawn- 

 colour, the thorax darker ; basal segment of abdomen with a black ring. 



