312 Mr. F. Walker on unclescribecl Species of Homoptera. 



punctisque plurimis marginalibus distinctis pallidis, margine ex parte 

 fuscescente, macula costali exteriore elongata albida ; posticse nigricanti- ■ 

 cinereae. 



Male. Testaceous. Front with two black dots. Thorax with a 

 blackish mark on each side. Legs paler than the body. Fore wings 

 with a few indistinct pale points in the disk, and with more numerous 

 and distinct pale points along the border, which is partly brownish ; 

 costa convex towards the base, -wdth a large elongate whitish spot 

 towards the tip ; interior border with two black points towards the 

 . tip. Hind wings blackish cinereous ; veins black. Length of the body 

 2^ lines ; of the wings 7 lines. 



Moreton Bay. 



Genus Ricania, Germar. 



RiCANiA CHEYSOPOiDES. 3Ias. Viridis ; vertex rufescens ; frous cari- 

 nata ; thoracis discus rufescenti-fuscus ; abdomen nigi'o late vittatimi ; 

 alse hyalinse, venis nigi'is ; anticje stigmate fusco. 



3Iale. Green. Head short, a little narrower than the thorax ; vertex 

 reddish, transverse quadi'ate ; front quadrate, longer than broad, with 

 a rim on each side and a middle keel. Disk of the thorax reddish 

 brown. Abdomen with a broad black stripe. Wings hyaline ; veins 

 black. Fore wings with numerous transverse veinlets, some of which 

 form a regular submarginal line ; eleven regidar parallel slightly oblique 

 costal veinlets between the base and the stigma, which is brown. 

 Length of the body 2^ lines ; of the wings 9 lines. 



Sydney. 



Genus Colobesthes, Amyot et Serville. 



CoLOBESTHES EXALTATA. 3Ias. Alba ; caput conicimi, subascendens ; 

 frons obliqua, submarginata, tricarinata ; alae anticse apice subrotim- 

 dat?e, costa subconvexa apicem versus subconcava, margine exteriore 

 recto non obliquo, angulo interiore acuto valde producto. 



3Iale. White. Head conical above, slightly ascending ; fi-ont oblique, 

 a little longer than broad, with three slight ridges, and with a slight 

 rim on each side. Fore wings broad ; costa and exterior border form- 

 ing a slightly roimded right angle ; costa very slightly convex from the 

 base to beyond the middle, very slightly concave from thence towards 

 the tip ; exterior border quite sti'aight, not oblique ; interior angle acute, 

 very much produced ; veins ramifjdng ; transverse veinlets very numer- 

 ous, except towards the exterior border, where the areolets are very 

 long; costal transverse veinlets regular, pai-allel, slightly oblique. 

 Length of the body 4 lines ; of the wings 16 lines. 

 Coupang, Timor. 



Genus Pcecilopteea, Latreille. 



PcECiLOPTEHA BrpuNCTATA. i^cBwi. Pallide viridis ; caput carina satu- 

 rate viridi, frontis margine faciem versus dilatato ; mesothorax carinis 



