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



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

 hai-dly convex. Length of the body 3 lines ; of the wings 8 lines. 

 Key Island, New Guinea. 



Genus Dechitus. 



Mas, et Focm. Corpus robustum. Caput breve ; vertex brevissimus j 

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

 natus. Mesothorax latus, convexus. Abdomen conicum, thorace 

 paidlo lougius. Pedes breves, robusti, femoribus tibiisque appressis 

 carinatis. Alte antic8e apice rotimdatae, costa recta basi arcuata, mar- 

 gine interiore recto, venis pliu-imis 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 tibias flattened, ridged. Fore wings moderately broad, much 

 rounded at the tips ; costa sti'aight, except towards the base, where it 

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

 veins nimierous, ramifying ; transverse veinlets forming two lines ; 

 costal space broad, with numerous regular oblique parallel veiidets. 

 Hind wings much shorter than the fore wings. 



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



Dechitus aphbophoroides (PI. XV. f. 7). Fcem. Obscure fulvescens ; 

 vertex et prothorax fusco subnotata; frons pallide flava; mesothorax 

 piceo marginatus ; abdomen basi sordide albidum ; alse anticse cinereo- 

 hyalinae, costa fusca litm'is albidis, punctis plurimis subapicalibus fuscis 

 ex parte confusis ; posticse fuscescente marginatse. 3Ias. Alee anticae 

 fasciis indeterminatis fuscis, lituris costalibus cinereo-hyalinis non 

 albidis. 



Female. Didl pale tawny. Vertex and prothorax slightly marked 

 with broAvn. 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 qviadrate and much larger and more distinct than the others ; apical 

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

 ent. Hind wings cinereous hyaline, broadly but diflusedly bordered 

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

 which fomis iiTegidar bands; costal marks cinereous hyaline, not 

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

 Moreton Bay. 



Dechitus? PTYELOiDES. 3Ias. Testaceus; frons nigro biguttata ; thorax 

 nigiicante binotatus ; alae anticce punctis paucis discalibus indistinctis 



