196 (February, — 
Genus 6.—ACHOROTILE, Fieb. 
Species 1.—ACHOROTILE ALBOSIGNATA. | 
Delphazx albosignata, Dahlb., k. Vet. Ak. Handl., p. 199 (1851) ; | 
Stal, Ofvers., xi, 196, 31 (1854). | 
Delphax fuscinervis, Boh., k. Vet. Ak. Handl., p. 113 (1852). | 
Achorotile albosignata, Fieb., Verhandl. d. k. k. zool. bot. Gesell., | 
xvi, 521, 15, t. 8, fig. 16 (1866). | 
Undeveloped form 8. 
Black, shining. 
Head: crown yellowish-white, the three fovess deep and distinct, the keels acute | 
and prominent ; two pustules on each side between the side and middle keels. 
Face dark brown or somewhat piceous on each side; in the channel between 
the side and middle keels are seven pustules, placed thus—three in a line with 
the eye, two next the clypeus along the outer margin of the middle keel, and | 
two (the uppermost of which is almost in a line with the lower margin of the | 
eye) along the inner margin of the side keel; along the side keels, towards. 
their lower extremities, are also five pustules, similar in position to those 
along the middle keel. Clypeus and cheeks dark brown or piceous. Antenne 
dark brown, lst joint darkest. | 
Thoraw: pronotum pitchy-black, with a broad yellowish-white streak down the | 
middle, outer margin of the side keels with four pustules. Scutellwm pitchy- | 
black, with a yellowish-white streak down the middle; inner margin of the | 
side keels with two pustules. Elytra pitchy-brown, shining, not covering 
more than the two basal segments of the abdomen, almost truncate posteriorly ; 
nerves distinct, not granulated. Legs fuscous-black ; thighs, apex whitish ; 
tibie, 3rd pair, spines and apex whitish; tarsi, 38rd pair whitish, 3rd joint 
brown. 
Abdomen black, shining, posterior margin of the 2nd and 8rd basal segments 
broadly white ; genital segment above posteriorly somewhat brownish. 
Length 1 line. 
This insect may at once be distinguished from every other in the 
family by the pustulations on the head, pronotum, and scutellum, and 
the white margin to the basal segments of the abdomen, as pointed out. 
I have made the description from a continental example of the — 
undeveloped imago, presented to me by Dr. Stal, on the strength of six | 
pupe taken by J. C. Dale, Esq., near Bonchurch, in the Isle of Wight, | 
in October. Both sexes are represented, the pupa of the female being | 
orange-yellowish, with the two basal fovez on the crown and two spots — 
on the scutellum, black, and the sides of the elytra and abdomen more 
or less fuscous; that of the male being entirely fuscous-black. The 
pustules are present on the head and face as in the perfect imsect. 
There is but this one species known on the Continent, and which, 
according to Dahlbom, occurs in July. 
Lee: December, 1870. 
