INkSEOTA HEMIFTERA. 
261 
posterior part of prothorax, the scutellum, the root, a broad middle band 
and some stripes near to the blackish point of the tegmina, are red ; 
head hmate ; ocelli situated close under the ledge of the forehead), is 
very hurtful to the foreign as well as native vine. Another species, 
T. Fabce (pale green, tegmina and wings clear, the last joint of hinder 
tarsi bluish, head lunate, ocelli on the margin of the forehead), injurious 
to the Windsor bean. 
Stridulantes. — Westwood (Arcan. Ent. i. p. 92, t. 24, f. 1), has cha- 
racterized a new genus, Cystosoma, which differs most essentially from 
Cicada, in the abdomen in the male being swollen into the shape of a 
bladder, and the veins of the anterior wings forming, from the middle, 
sexagonal meshes : C. Saundersii, new species from New Holland. On 
the same plate figures are also given of Polyneura ducalis, Westw., 
and Hemidictya frondosa, Burm. (ibid. p. 97). Westwood has given 
an enumeration of the species of Cicada, with opaque anterior wings, 
and has increased them by two new species : C. mearsiana, from the 
Himalayah, and C. dives, from Sylhet, which are beautifully figured on 
tab. 25. (See also Ann. Nat. Hist. ix. p. 118.) 
The reporter (Arch. 1842, i. p. 286) has described a new species, 
C. torrida, from Van Diemen’s Land. It may be noticed, that this 
species only appears in dry summers, and seasons of great heat and 
drought ; and its song is heard during the greatest heat of mid-day. 
PsYLLiD^. — Under the name of Diraphia, used by Illiger for Livia, 
Waga has characterized a new genus (Ann. d. 1. Soc. Ent. d. Er. x. p. 275, 
t. 11, f. 11, 12), which is very closely allied to Livia, and difiers chiefly 
by the second antennal joint, which is much smaller (about one-fourth the 
length of antennae), and simply oval. The anterior corners of the head, 
also, are not pointed but rounded : Z>. limhata, in bushes at Warsaw. 
The reporter (Arch. 1842, i. p. 286) has described Psylla luteola and 
suhfasciata, new species from Van Diemen’s Land. 
Aphids. — Spence (Transact. Entom. Soc. of Lond. iii. p. 98) describes 
the ravages of these insects in the orchards of Devonshire. The injury, 
in his opinion, is done by the blossoms dying, in consequence of the 
leaves being sucked by these insects before their development. 
Hofmann Edl. von Hofmannsthal has published a work, called Die 
Caruba di Guidea, Vienna, 1842. A plate in it represents the gall of 
Pistacia terebinthus, with the Aphis which inhabits it. 
Harris (Ins. Mass. p. 190) considers the former of two Aphides found 
in Massachusetts to be Aphis caryce, Harr. ; a Lachnus, with a soft 
woolly black body, four rows of small transverse spots on the back, black 
wing-veins and reddish-brown tibiae, long ; it sucks the branches of 
the Carya porcina. The other, A. saliceti ; probably also a Lachnus, 
V" long, black, without spots ; the short honey-knobs, the third antennal 
joint, the legs, and the veins of the transparent wings, tan yellow ; it 
505 U 
