24 . [June, 1870. 
Genus 4-- DicranoTRopPis. 
Face with two middle keels, united at a greater or lesser distance from the 
base. All the other characters as in Liburnia. 
Genus 5—STIROMA. 
Face with two middle keels, sometimes somewhat indistinct. All the other 
characters as in the two former genera. 
Genus 1—Astraca, Lat. 
Asiraca clavicornis, Fab. This insect is rarely taken by sweeping, as 
it seems to be of retired habits, living at the roots of grass, &c. 
(see Ent. Mo. Mag., vol. vi, 162). 
Genus 2—Dernpnax, Fab. 
This is the genus Ar@opus of Spinola, a name which has 
been generally adopted by later authors, but it cannot stand, because 
Fabricius had already characterized his genus Delphax from the species 
erassicornis (see Ent. Sys. supp., 522, 1). The Delphaw of authors 
therefore requires another name, and we have adopted that of Liburnia, 
Stal (see next genus). As far as we at present know, we have but 
one species in this country, which was figured and described by Curtis, 
whose name it will bear; and, singularly enough, in the text relating to 
the plate, he says, “allied to crassicornis, Fab. and Panz., 35, 19,” a 
fact which has been hitherto overlooked, or considered of no value 
whatever. The following is the synonymy :— 
DELPHAX PULCHELLA. 
¢ Asiraca pulchella, Curt., 445, and plate (1833). 
9 Asiraca dubia, Curt., 445, 2 (1883). 
Areopus crassicornis, Marshall, Ent. Mo. Mag., ii, 31, 1 (1865). 
Aréopus Minki, Fab., Verhandl. Zool. bot. Gesell., xvi, 522, 1 (1866). 
It differs from crassicornis in having the basal cell of the elytra, 
and the space between the second and third longitudmal nerves only, 
black or brown ; whereas in that insect the basal cell is white, and the 
entire space between the first and third nerves, as far, nearly, as the 
transverse nerves, black or brown. The shape of the processes attached 
to the genital segment is also different. 
To be found not uncommonly by sweeping on the margins of the 
marshes around Lee, in August and September. The ? is very rarely 
found in the winged state. 
