304 PERCY SLADEN TRUST EXPEDITION 



201. Nilaparvata mahensis, sp. n. (Plate 51, fig. 14 a). 



Head ochraceous with three blaok punctate spots ; pronotum very pale stramineous, 

 with two central black spots ; mesonotum castaneous, the carinations much paler ; 

 body beneath and legs ochraceous ; tegmina subhyaline, the veins ochraceous and 

 setigerous ; vertex about as long as broad, lateral margins strongly carinate, their 

 anterior angles moderately acutely prominent, two oblique discal carinations commencing 

 at about middle of lateral margins and angularly meeting slightly in front of anterior 

 margin, basal margin carinate ; face elongate, very much longer than broad, centrally 

 and laterally carinate, the central carination furcate at anterior margin ; clypeus strongly, 

 broadly, laterally and medially carinate, about half the length of face ; antennae inserted 

 at about middle of eyes, second joint much longer than first, inci'assate and granulose ; 

 pronotum about as long as vertex, centrally, laterally and anteriorly carinate ; meso- 

 notum distinctly tricarinate. 



Long. 2 mm. 



Log. Seychelles. Mahe : Port Victoria, from grass in Botanic Gardens. 



A single specimen only procured. 



CoNSUALiA, gen. nov. 



Head projecting beyond the eyes, centrally and laterally carinate, apical margin 

 a little centrally produced ; face elongate, slightly broadened before clypeus, centrally 

 bicarinate, clypeus centrally and laterally carinate ; antennae with the first and second 

 joints long and moderately robust, second a little longer than first ; pronotum short, 

 conically produced between the eyes, posterior margin prominent ; mesonotum longer 

 than head and pronotum together, with five longitudinal carinations, the three central 

 longest and percurrent, the two lateral ones shorter and oblique ; abdomen broad, 

 robust, centrally ridged, the lateral margins flattened ; posterior legs long, the tibise 

 with a short spine near base, a longer spine beyond middle, and with a long robust 

 apical spur ; tegmina about twice as long as broad, apical margin convexly rounded, 

 costal membrane without transverse veins, discal veins longitudinal, a series of transverse 

 veins before apex deliminating apical cells, those at apical angle short and oblique ; 

 wings much shorter but almost as broad as tegmina, two transverse veins on upper disk. 



202. Consualia robusta, sp. n. (Plate 50, fig. 6 a). 



Body dark castaneous ; posterior angle of mesonotum, base and central longitudinal 

 ridge to abdomen, and legs, more or less testaceous ; tegmina pale brownish-ochraceous, 

 the venation fuscous ; wings pale fuliginous, the veins darker ; structural characters 

 as in generic diagnosis. 



Long. excl. tegm. 5^ mm. Exp. tegm. 10 mm. 



Log. Seychelles. Silhouette : near Mont Pot-^-eau, over 1000 feet. 



