194 
Mr. G. R. Waterhouse’s Description of 
dum. Palpi-labiales 3-articulati, articulo terminali securi- 
formi (1 d ). Thorax subcylindraceus. Elytra linearia, elon- 
gata. Tarsi articulis intermediis obcordatis (1 f). 
AUelidea Ctenostornoides. 
A. aeneo-nigra, capite thoraceque punctulatissimis ; elytris 
punctato-striatis, fascia media nec non maculd ad basin, al- 
teraque ad apicem, sub-flavescentibus, labio testaceo: an- 
tennis testaceis, ad apicem piceis ; tarsis, femorumque basi 
pallidioribus. 
Long. corp. 2 ^ lin. 
Hab. in Australasia. 
Obs. — This genus is allied to Dasytes. 
Order HOMOPTERA. 
Genus Alleloplasis. (PI. XVII. fig. 4.) 
Antennce tri-articulatse ; articulis duabus basalibus magnis, 
harum prima brevissima, secunda longitudine latitudinem 
excellente, tertia minuta, orbiculari, seti terminali (fig. 4 e). 
Alee duae, elongatae, graciles ; nervulo medio per totam uni- 
uscujusque longitudinem excurrente, ramusculis obliquis ad 
latera divergentibus (4 f). Tarsi tri-articulati (4 g, h). 
A lleloplasis Darwinii. 
Descrip. Pitchy-brown ; under part of the thorax pale testa- 
ceous. Abdomen black, with two white spots at the base on 
each side ; above brown ; beneath pale testaceous ; the sides 
with two oblique white bands, each with a series of black 
spots. Wings spotted alternately with black and white. 
Legs pitchy-testaceous. 
Length 1| lin. ; wings included 24 lin. 
Hab. in Australasia. 
Obs. — This extraordinary insect was discovered by C. Darwin, 
Esq. whilst “ sweeping in coarse grass and brushwood ; King 
George’s Sound.” I have therefore named it after this gentleman, 
who has done so much towards the advancement of science, and 
to whom Entomology owes so much, since he has brought to this 
country an immense collection of insects from various parts of the 
world, and particularly of the minute species which had been 
comparatively neglected. 
Plate XVII. Fig. 4. The insect seen sideways ; 4 a, the same seen from above ; 
4 b, ditto, with the wings removed ; 4 c, front of head ; 4 d, promuscis ; 4 e, 
eye and antenna ; 4 f, wing ; 4 g and 4 h, apex of tibiae and tarsi. 
