MEMBRA CIDJE. 
109 
than strict adherence to the terms of a synoptic table, however carefully it may 
have been constructed. 
A quiet mimicry for concealment is common enough in animals. Deterrent devices 
for concealment are not so common, and perhaps they can be less obviously proved; 
yet some of the Darninse take on themselves the device (if the term may be allowed) 
of disguising themselves as slimy, and presumably distasteful slugs. 
Some long taper forms, grey and glistening, are exampled by such species as 
Darnis limacodes of Burmeister and Fairmaire, and Hebetica convoluta of Fabricius. 
Genus: ASPONA, Stab 
Kongl. Sv. Yet. Ak. Hand!. (2) iii. (19); (Bidrag till Rio Janeiro-trackteur Hemipter Fauna ii.) 
p. 29 (1860); Fowl. B.C.A. l.c. p. 50. 
The form of this genus is peculiar, from the broad globose aspect, and the strong 
punctuation of the pronotum. 
This turgescence or inflated appearance rather recalls that of the bladder-like 
form of the genus Combophora. The tegmen of the type has only one discoidal 
area, but Fowler shows that this neuration is not constant, for other species, like 
A. turgescens , show two discoidals. 
This genus comprises rather small broad robust species, with the pronotum as 
long as the tegmina. The neuration of the wings differs much from that of the 
genus Darnis, and is variable from species to species as shown by my figures, which 
have been enlarged (by permission) from the Biologia. 
ASPONA BULLATA. 
(Plate XXII. figs. 3, 3a, 3b.) 
Stal l.c. Kong. Yet. Akad. 
Colour to the naked eye velvety brown, but seen under the microscope, under 
a strong light, more ochreous and coarsely pitted; the head and the posterior parts 
of the pronotum the palest in colour; dorsum rising globosely with one central and 
two obscure side caringe ; the lower margin sinuous, and deeply notched below the 
small and obtuse supralmmerals; legs rather short and ochreous in tint; tegmina hyaline, 
with neuration of varying thickness, the veins near the costa being the coarsest. 
My figure is drawn from a specimen kindly forwarded to me from the Stockholm 
Museum by Dr. C. Aurivillius. 
Expanse of wings, 23 mm. 
Size, 7x5 mm. 
Habited. —Brazil. 
