LIST OF HOMOPTEROUS INSECTS. 



21. Ledba costalis. 



Testacea, nigra vittala, subtus nigra ; fades nigra fasciata ; pectus 

 et abdomen subtns albido biviltata ; femora antica tibiaque 

 postica apice femoraque posteriora nigra ; alee limpidce ; alee 

 anticce nigra biviltata;. 



Testaceous, black beneath : head and chest irregularly marked 

 with black : head very short, not broader than the chest, not 

 arched, hardly concave above, finely striated longitudinally, short- 

 conical on the fore border, very concave on the hind border, with 

 five black stripes ; its length about one-sixth of its breadth ; on 

 each side of the fore border a spindle-shaped concave compartment 

 whose disk is black ; face with a very broad, arched, yellow band, 

 joining on each side of the breast a broad, whitish stripe, which has 

 two pitchy dots : chest almost flat, finely striated transversely ; shield 

 conical along the fore border, with black, irregular stripes ; hind 

 border concave in the middle, convex on each side ; scutcheon with 

 a black stripe, which is forked towards the hind border, with a pitchy, 

 forked mark on each side of the disk, and with a black, triangular 

 spot on each side: abdomen black above, with a broad, whitish 

 stripe on each side : legs pale testaceous ; posterior thighs mostly 

 black ; a black spot on each of the fore-thighs ; tips of the hind-shanks 

 black : fore-wings colourless, with a very slender interrupted black 

 stripe along half the length of the fore border, and along the hind 

 border a very broad, interrupted, black stripe, which contains many 

 pale dots ; veins with alternate whitish and pitchy bands : hind- 

 wings colourless. Length of the body Hi lines; of the wings 11 

 lines. 

 (J. New Holland. 



22. Ledba austrai-is. 



Testacea, nigro tessellata el rittata, subtus nigra testaceo bivittata ; 

 scutellum nigro-bimaculatum ; abdomen subtus testaceo fascia- 

 turn ; femora nigra ; aliB anticce sublimpidte, basi subferru- 

 ginece, ad costam piceo macxdatcc ; alee postica limpidce. 



Testaceous, black beneath : head and chest tessellated with 

 black: head very short, not broader than the chest, not arched, 

 very slightly concave above, finely striated longitudinally, very short- 

 conical on the fore border, very concave on the hind border, with a 



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