AUSTl-ALIAX HYMKXOI'TEHA Cll AI.CIDOI DKA, IX.—amAlLT. 213 



Desc-rilicd tidiii a IciiKili' capliir,'.! Iiy s\\rc|iiiL; iii llic fninst, Aufjust :; 191 t (\ ]• 

 Uodtl). 



Ihihitat : Uordonvale (Cairns'!, i^Iiuti, slain]. 



Tiipc: No. HilJem, Qiieeiislaii.l .Mnscuia. IIiisIkiin', llic s|ii-(inu ii mi a lay: lii'ad. 

 iainlal tiliiai, a t'mv lej; ami a iiiiililU' tiliia mi a sliilr. 



Cents A I 'I .A'I ■^■( ; I:i;|; 1 1 I s Cuanlt. 



1. APLATYGERRHUS MAGNIFICUS Cuauli. I'Viaalc (;,-ii.ityiH-. 



Length, 4.70 mm. 



Dark metallic jJieen, densely piiiietate l.iil tli.' |.ni|.,»l.'iiiii sliiniiiH, mily retinilati' and 

 A\itli a median carina; rather hairy, the eyes alsi.. I'd-teiim- .-nxa' niet.illic Idiiisli; legs fuscous 

 •except posterior coxa' and the lilack posterior lihia- (middle) and pm-timis of llie femora of 

 the posterior legs. Wings with a consiiicnons, targe, siilis.agittate, smcikv .area suspendeil 

 from the jiostmarginal vein and distad, the apex olisciirely darkene.l. I'ostmarginal vein 

 longer than the stigmal, which is Imig. .\iiteiiiia' II juiided, no ringjiiiiit, the (dull single, 

 terminating in a conical projection ami eiiihr,ac.'d l.y a h.ng lateral extciisimi nf llic distal 

 funiile .joint; first fuuicle .ioint smaller than llie secmui, whiih is larger than tlic> pedii'cl; 

 other fuuicde joints wider than Imi^;. .Vntenicc limwiiisli li.uard tij.. Distal fuuicle joints 

 jieduncnlate, 



Ihtbititl : Hobart. Tasmania. 



Tiipt: X(j. I.l^i.'il, South Australian Miis"iiiii. 'r.ai; and slide. 



The genus is characterized hy tlic aiitciiiial stiuctiire. Later mie male and six females 

 were found in the same collection. In the male tlic distal fuuicle joint has not the long 

 ]irojection. 



tiEXl-s AMKROSTIONTS (lirault. 



Agreeing toleralily well with ilvrosit mis Walker hut the antennae with four ring-joints 

 and a 3-jointed club, 13-jointed; flagellum cylindrical, the first two funicle joints snbequal, 

 longest of the flagelhun. each over a half longer than the fourth (distal) fnnicle joint, which 

 is subquadrate. I'arajisidal furrows complete; scntellum with a transverse groove before apex. 

 I'rnpoih'iim with .a median carina which divides at base, its sjjiracle round. Postmarginal 

 M'in nearly as Imig as the marginal, the stigmal shorti'r. Pronotum rather large. Abdomen 

 Imig and pointed, conic-ovate, jiroduced beneath near base. Km-e wings obscurely stained. 

 Keniora subsimple. Scutellnm brnadeniiig distad. .Mandibles -1-dentate, the inner tooth 

 truncate and broad. Eyes naked. 



1. AMEROSTENUS AUSTRALIENSIS Cirault. Female; male. CJenotype. 



[jength, 5.2U mm. 



Bright metallic blue-green, the anteniue, coxa' and femora concolorous, also tlu' tibiiJO 

 along jiroximal half, the remainder of the legs reddish brown. Venation dusky brown. Pore 

 wings obscurely stained. Body densely reticulated, the scntellum and parapsides not as rough 

 as the scutum. The male measures 4.50 mm. and has the tibia; all dark. 



Habitat: Ilobart, Tasmania. Reared from wood. 



Tiipc: No. 1.1-255, South Australian .Museum, one male, tliri'e females on a card and 

 a slide. 



2. AMEROSTENUS AEREIPES new spe.ies. 



Female : — Length, H mm. 



The same as autitraJieiisix but the wings hyaline, llie legs all metallic ami dark except 

 the pale knees, tips of tibia' and tarsi, tlie scutum and parapsides transversely lineolated, the 

 first .joint of the funide is longest but not twice tlie leriglli of the fourth which is sube(|ual 

 to joint .1, both ipiadrate or else a little wider than long; second funicle joint somewhat slmrtur 



