RHYNCHOTA. 
567 
C(^sonia, g. n., Stal, 1. c. p. 244. Allied to Ormenis (St§,l) j head j)roduced, 
narrower than thorax. Sp. Colohesthes bellulus (Stul). 
Calauria, g. n., Stul,/. c. p. 246. Allied to preceding; corium hardly longer 
than clavus, the latter attaining, or nearly attaining, the apical commissural 
angle. Sp. C. sulciceps, sp. n., StSl, 1. c. p. 246, Cape of Good Hope. 
Latois, g. n., Stfil, 1. c. p. 247. Allied to Oyaria (Stal) ; vertex not con- 
cealed by thorax ; scutellum tricarinate ; clavus without transverse veins. 
Sp. Nephesa antica (Sign.). 
Atracis, g. n., Stil, 1. c. p. 250. Allied to Flatoides ; posterior tihim uni- 
spinose. Sp. Flata pyralis (Gudr.), Fhalcenomorpha nictneri and mira (StSl), 
Blidiptcra pruinosa and inccqualis (Walk.) ; newsp. A.fcccaria and A. impura^ 
Stal, 1. c. p. 261, Sierra Leone. 
Bhromnia seminigra, sp. n., St§,l, 1. c. p. 240, Madagascar. 
Flata nigro-punctata, sp. n., StSl, 1. c, p. 243, Madagascar (=var. Phylly- 
phanta nivea, Sign.). 
Flatoides verruculatusj sp. n., Stal, 1. c, p. 249, Madagascar. 
MEMBRACIDiE. 
Stal (Hem. Afr. iv.) includes the species of this family among 
his Jassida, with the exception of the doubtful genus Machee- 
rota, which constitutes a subfamily of his Cercopida. The 
wisdom of this arrangement seems doubtful. Of the 7 sub- 
families admitted by Stal among his Jassida, 6 belong to the 
present group ; they are tabulated as follows (/. c. pp. 82-83) : — 
I. Tliorax usually very declivous in front, very convex or elevated ; vertex 
declivous ; face strongly inflexed, subhorizontal, lateral margins usu- 
ally not dilated. [^Memh'acidce.'] 
A. Scutellum 0 or obsolete, not extended beyond metanotum. 
1. Posterior tarsi small, shorter than anterior .... Hoplophoiuda. 
2. Tarsi of equal length, or posterior longer than anterior. 
a. Tibise and sides of face dilated, foliaceous . . Membracida. . 
b. Tihim simple. 
* Tegmina entirely membranaceous, veins distinct, 
a. Third apical cell elongate, never petiolato. Darniba. 
/3. Third apical coll sub triangular, potiolate, adjacent cells con- 
tiguous ' Smiliiba. 
t Tegmina coriaceous and opaque, with scarcely distinguishable 
veins externally Tragopida. 
B. Scutellum distinct, produced beyond metanotum. Centrotida. 
II. Thorax slightly convex ; lateral margins of face usually dilated and 
partially Concealing anterior coxse Jassida. 
Centrotus malleator malleolus (Walk,)=:c>5esM5 (Fairm.) ; C. niveiplaga 
(Walk.) = (Fairm.) ; C. mc/jraceros (Walk.) = wrws (Fairm.) ; and C. 
terminalis and vicarius (Walk.)=/awrws (Fab.). StSl, Berl, ent. Zeits. 18GG, 
p.38G. 
Cicada crux (JJimi.')=IIemiptycha crux is described from the type by 
StSl, Berl. Ent. Zeits. 18G6, p. 389. 
Centrochares, g. n., StSI, Hem. Afr. iv. p. 8G ; tibiae foliaceous ; thorax cor- 
