DISTANT— RHYNCHOTA. PART II: SUBORDER HOMOPTERA 295 



Deferundata, gen. nov. 



Vertex of head broad and narrow, anterior and lateral margins ridged, centrally 

 carinate, and with eyes about as broad as anterior margin of pronotum ; face slightly 

 broader than long, the anterior margin truncate, centrally and sublaterally carinate, 

 the lateral margins narrowing near clypeus which is also centrally carinate ; pronotum 

 short, centrally longitudinally ridged, its anterior margin convex, its posterior margin 

 concave ; mesonotum about twice as long as vertex and pronotum together, tricarinate, 

 the lateral carinations anteriorly inwardly forked ; legs of moderate length, posterior 

 tibise with two spines before apex ; tegmina twice as long as broad, costal margin 

 prominently convexly raised at base, slightly waved beyond middle, costal membrane 

 narrower than radial area near base, somewhat closely transversely veined, apical 

 margin obliquely convex, inner margin beyond base, straight, outer disk transversely 

 reticulately veined, two transverse lines near apical margin defining numerous narrow 

 cellular spaces ; wings a little shorter and about as broad as tegmina, a few transverse 

 veins on upper disk beyond middle ; abdomen above centrally longitudinally sulcate. 



179. Deferundata aldahrana, sp. n. (Plate 50, fig. 1 a). 



Head, pi-onotum and mesonotum brownish-ochraceous ; vertex with two central 

 longitudinal black fasciae, mesonotum with anterior and lateral black spots ; abdomen 

 pale ochraceous, the segmental margins black or fuscous ; face brownish-ochi'aceous, 

 the lateral areas finely spotted with black ; sternum and legs brownish-ochraceous ; 

 tegmina bronzy-ochraceous, the posterior claval margin distinctly darker ; wings very 

 pale fuliginous, the veins and apical marginal area a little darker ; structural characters 

 as in generic diagnosis. 



Long. excl. tegm. 5 mm. Exp. tegm. 16^ mm. 



Loc. Aldabra : lie Michel ; Takamaka (Fryer). 



Armilustrium, gen. nov. 



Vertex of head transverse, broad, excluding eyes narrower than pronotum and 

 about twice as broad as long, margins ridged, anterior margin a little rounded, anterior 

 lateral angles prominent, eyes backwardly directed along the lateral margins of the 

 pronotum ; face considerably broader than long, anterior margin truncate, centrally and 

 sublaterally carinate, the sublateral carinations convexly meeting near anterior margin ; 

 clypeus with a central carination, the lateral margins obscurely ridged ; pronotum short, 

 slightly longer than vertex, centrally longitudinally ridged ; mesonotuin large and long, 

 considerably longer than head and pronotum together, tricarinate, the lateral carinations 

 anteriorly, inwardly bifurcating; posterior tibise with two spines beyond middle; teg- 

 mina about twice as long as broad, costal membrane narrow, much narrower than 

 radial area, basal cell longer than broad, longitudinal veins bifurcating beyond middle, 

 a subapical series of transverse veins, preceded by a straight and well-defined im- 

 pression ; wings shorter and broader than tegmina, two outer discal transverse veins, 

 some veins bifurcating on outer margin. 



