50 | HEMIPTERA-HOMOPTERA. 
c. Tegmina almost entirely exposed, with the areas regular and 
oblong, but less elongate; one small subtriangular dis- 
coidal area present ; third basal area strongly petiolate ; 
facies of asmall Ceresa . . . «© © © © + ee 
C. Pronotum without frontal or lateral horns, and with the humeral 
angles at most slightly prominent. 
a. Pronotum strongly compresso-elevate, cymbiform. . . . Cymbomorpha, Stal. 
b. Pronotum not compresso-elevate. 
a*, Tegmina not coriaceous. 
at. Areas of tegmina irregular, veins of apical areas strongly 
curved, dorsum sinuate. . . .. .. . . +. Dysyncritus, gen. nov. 
Nassunia, Stal. 
b+. Areas of tegmina regular, veins of apical areas not 
or very slightly curved; dorsumeven . . . . . Darnoides, Fairm. 
b*, Tegmina externally in part coriaceous ; facies of a small 
Tragopa  . «6 ew ew ww ww we we we.) 6 ~Seaphula, Fairm. 
II. Tegmina twice as long as wings; pronotum nodose and spined. . Heteronotus, Lap. 
ASPONA. 
Aspona, Stal, Kongl. Sv. Vet.-Ak. Handl. ii. 2 (Bidrag till Rio Janeiro-Trakt. Hemipt.-Fauna, ii.), 
p. 29 (1860). 
The type-forms of this genus are very peculiar insects on account of their broad form, 
scabrous appearance, and the very large and distinct impressions on their surface. 
According to Stal, the tegmina have only one discoidal area, but in the first species 
described below two are present, and the character is evidently variable. | ‘ 
‘In our collection there are specimens of three species, one of which belongs to the 
typical form, and the second is intermediate and passes on to the third, which any one 
would describe as a new genus without the least hesitation, were it not for the second; 
after considerable doubt I have come to the conclusion that it is best to class them 
together under Aspona until more is known regarding the group, which seems to be a 
very scarce one. Tragopa aspera, of Walker’s Cat. Homopt. Ins., Suppl. p. 151, is a 
small Aspona, allied to A. bullata, Stal. The genus is allied to Hygris. | 
1. Aspona turgescens, sp. n. (Tab. IV. figg. 12, 12 a—c.) 
. Oblonga, lata, robusta, fusco-ferruginea indistincte testaceo-variegata ; capite zque longo ac lato, ferrugineo, 
dense punctato; pronoto rugoso, humeris prominulis, auriculatis, ferrugineis, fortiter et dense rugose 
punctato, linea centrali aliisque quibusdam utrinque irregularibus elevatis, ad medium profunde, iterumque 
levius postice, impresso, lateribus fere usque ad apicem parallelis, deinde in apicem obtusum abrupte 
contractis; tegminibus hyalinis, venis crassis, piceis, margine exteriori apicem versus fusco, ad basin 
ferrugineo, opaco, punctato; pedibus testaceis, tarsis infuscatis. 
Oblong, subquadrate, with the sides of the pronotum parallel until near the apex, and then abruptly narrowed 
to a blunt point ; head as long as broad, thickly punctured; pronotum scabrous and rugose, with irregular 
raised lines, fusco-ferruginous, indistinctly variegated, especially on these lines, with testaceous colour, very 
strongly impressed transversely at the middle, and again behind the middle, and much depressed before the 
apex ; tegmina hyaline, slightly infuscate on their exterior margin, the basal portion of which is punctate 
