92 NEW GENERA OF CICADID. 
furcate at a short distance from the base of the wing, each furcation 
also becoming fureate beyond the middle of the wing ; the median 
vein is single, but emits a branch, which runs to the extremity of 
the anal vein; a few short transverse or oblique veins connect seve- 
ral of these longitudinal veins together, forming but a very small 
number of cells. 
There is, however, a fine species which inhabits Nepaul (where it 
was discovered by thelate Major-General Hardwicke), and other parts 
of India, which although agreeing with the typical Cicadze in general 
form and structure, has the fore wings very much reticulated, the 
posteostal and median veins being multifureate, not only in the 
apical part, but also in the more coriaceous basal portion, the furea- 
tions being frequently united by short transverse veins. In the 
formation of the musical apparatus of the male and its opercula, this 
species does not differ from C. fasciata; but on account of the differ- 
ence which it exhibits in the structure of its wings from the true 
Cicadee, I have regarded it as a distinct sub-genus, under the 
name of— 
POLYNEURA DUCALIS, Westw. (Plate 24, fig. 2.) 
C. (P.) nigra, pronoti marginibus antico et postico (latiori) flavidis; alis anticis brunneis 
flavo-venosis, posticis fulvis; pedibus nigris femoribus (nisi apice) rufis. Long. corp. 
unc. 13. Expans. alar. ant. unc. 41. 
Mus. Brit. Hope. Westw. (Inhabits the East Indies.) 
A figure of this insect, with the wings expanded, has been published in Jardine’s Naturalist’s 
Library (Introduction to Entomology, pl. 18, fig. 1). 
The two insects above described agree in having the basal portion 
of the fore wings separated from the apical and more membranaceous 
part. Theremaining insect, figured in plate 24, differs from them 
both in having homogeneous fore wings, although in the slight vein- 
ing of the basal part of these wings, and the somewhat hexagonally 
areolated apical part, it agrees with Hemidictya. 
Tam indebted to J. Curtis, Esq., F.L.S., for a knowledge of this 
interesting Australian novelty, by whom it has been proposed to be 
named— 
CYSTOSOMA SAUNDERSII. (Plate 24, fig. 1, and details.) 
Caput parvum, antenne mutilate. Promuscis ad basin femorum intermediorum extensa. Pro-et 
meso-thoracis dorsum fere utin Cicada maculata formatum. Epimera metathoracica mediocria, 
medium segmenti basalis abdominis infra haud tegentia (fig. 1 e). Tympana musicalia late- 
ralia (fig. 1 d), omnino detecta valde convexa, transverse striata. Abdomen maris maxi- 
mum valde inflatum, organa genitalia maris parva exserta (fiy. 1 @, segmenta apicalia 
abdominis infra visa; 1 J, genitalia subtus; le, eadem e Jatere visa). Pedes breves. 
Ale antic homogenex, subopacee ultra medium valde subhexagonaliter areolate. 
© incognita. 
C. Saundersii. Pallide lutea costa alarum anticarum albida. Long. corp. fere unc. 2. 
Expans. alar. unc. 32. Mus. Curtis. (Inhabits New Holland.) 
The plant is the Lobelia hypocrateriformis #R. Br., a native of tho South Coast of New 
Holland. Lob. ramosa Benth. (figured in my second plate under the name of 
L, gracilis) is a native of Swan River, whence it was introduced in 1837. 
