238 IMarch, 
the notes of Mr. Peckolt, of Cantagallos. He exhibited the insects, which were 
chiefly Hyineno]^era ; but there were also two species of Dvptera, a Musca, and a 
Trypeta, which annoyed the natives by entering their nostrils, &c., when asleep. 
Mr. McLachlan read a monograph of the British Neuro^itera-Planipennia, 
describing 49 species. 
BRITISH HEMIPTERA .- ADDITIONS AND CORRECTIONS. 
BY J. W. DOU&LAS AND JOHIST SCOTT. 
GTMNOCERATA. 
GEODEOMICA. 
Section 1. — Scutatima. 
Family 1. — CYDisriDiE. 
Genus 1*. — ^thfs, Dall. 
Cat. Hem. i, 110 (1851). 
Oval, slightly convex ; sides of tlie head and pronotum set with 
projecting hairs. 
Head broad, deeply inserted in the pronotum, in front rounded, entire, 
margin incrassated, not reflexed ; lobes of the face of equal length ; 
under-side with a rostral channel. Antenna inserted on a tubercle 
near the base of the eyes, short, 2nd joint longest, 5th (at least) 
petiolate. Eyes scarcely projecting beyond the circumference of 
the head, posteriorly touching the pronotum. Ocelli small, distant, 
inserted near the posterior margin of the head. Bostrum long, 
slender, 3rd joint longest. 
Thorax— Pronohi'm trapezoidal, almost quadrate, emarginate in front. 
Scutellum large, triangular, longer than broad, apex lobate, at first 
raised and then deflected, reaching beyond the inner angles of the 
coria. Elytra — Clavus narrow • Corium broad, anterior margin 
incrassated, posterior margin straight; membrane short, thin. 
Sternum,— prosternum deeply sulcate transversely at the sides; 
mesosternum with a broad keel. Legs stout, fossorial; thighs 
compressed ; tihicB all furnished on the upper-side and apex with 
strong spines in rows ; 1st pair anteriorly dilated on the inner 
side ; 3rd pair more slender than the others ; tarsi slender, fili- 
form, 2nd joint shortest, 3rd longest ; claws long, slender. 
Abdomen — Very convex beneath. 
Species 1. — ^thus l^vis, Doug. & Scott. 
I^lack, shining; pronotum without transverse depression, very 
finely punctured, except on a large smooth space on each side of the 
middle anteriorly ; scutellum and corium finely punctured, with fwo 
