Mr. F. "Walker on undescribed Species of Homoptera. 311 



in the middle, the other subapical ; exterior border oblique, chalybeous, 

 hardly convex. Length of the body 3 lines ; of the wings 8 lines. 

 Key Island, New Guinea. 



O Genus Dechitxjs. 



Mas. et Foam. Corpus robustum. Caput breve; vertex brevissimus ; 

 frons plana, transversa, subcarinata. Prothorax brevissimus, subcari- 

 natus. Mesothorax latus, convexus. Abdomen conicum, thorace 

 paullo longius. Pedes breves, robusti, femoribus tibiisque appressis 

 carinatis. Ala? anticoa apice rotundatae, costa recta basi arcuata, mar- 

 gine interiore recto, venis plurimis ramosis, venulis costalibus plurimis 

 obliquis parallelis. 



Male and Female. Body stout. Head short, nearly as broad as the 

 thorax ; vertex very short ; front flat, much broader than long, with a 

 slight rim and a slight middle keel. Prothorax very short, especially 

 so on each side, with a slight keel. Mesothorax large, convex. Abdo- 

 men conical, a little longer than the thorax. Legs short, stout ; femora 

 and tibiae flattened, ridged. Fore wings moderately broad, much 

 rounded at the tips ; costa straight, except towards the base, where it 

 is much curved ; exterior border very convex ; interior border straight ; 

 veins numerous, ramifying; transverse veinlets forming two lines; 

 costal space broad, with numerous regular oblique parallel veinlets. 

 Hind wings much shorter than the fore wings. 

 This genus is allied to Cotrades, and also to Serida. 



O Dechitus aphkophoroides (PI. XV. f. 7). Fcem. Obscure Mvescens ; 

 vertex et prothorax fusco subnotata; frons pallide flava; mesothorax 

 piceo marginatus ; abdomen basi sordide albidimi ; alae anticse cinereo- 

 hyalinae, costa fusca lituris albidis, punctis pluriinis subapicalibus fuscis 

 ex parte confusis ; posticae fuscescente marginatae. 3fas. Alae anticae 

 fasciis indeterminatis fuscis, lituris costalibus cinereo-hyalinis non 

 albidis. 



Female. Dull pale tawny. Vertex and prothorax slightly marked 

 with brown. Front pale yellow. Mesothorax darker tawny, piceous 

 in front and on each side. Abdomen dingy whitish at the base. Fore 

 wings cinereous hyaline ; costal space brown (the brown hue extending 

 partly to the disk), with transverse dingy whitish marks, of which one 

 is quadrate and much larger and more distinct than the others ; apical 

 space with very numerous brown points, of which many are conflu- 

 ent. Hind wings cinereous hyaline, broadly but diffusedly bordered 

 with brownish hyaline. Male. Fore wings wholly varied with brown, 

 which forms irregular bands; costal marks cinereous hyaline, not 

 whitish. Length of the body 3 lines ; of the wings 8 lines. 



Moreton Bay. 



Dechitus ? ptyeloides. Mas. Testaceus ; frons nigro biguttata ; thorax 

 nigricante binotatus ; alae anticse punctis paucis discalibus indistinctis 



