9DQ [Marc{i, 



the notes of Mr. Peckolt, of Cantagallos. He exhibited the insects, which were 

 chiefly Hymeno;^era ; but there were also two species of Diptera, a Musca, and a 

 Trypeta, which annoyed the natives by entering their nostrils, &c., when asleep. 



Mr. McLachlan read a monograph of the British Neuroptera-Planipennia, 

 describing 49 species. 



BRITISH HEMIPTEBA: ADDITIONS AND CORRECTIONS. 

 BY J. W. DOFGLAS AND JOHN SCOTT. 



aTMNOCEEATA. 



GEODEOMICA. 

 Section 1. — Scutatina. 



Family 1. — Cydnid^. 



Genus 1*. — ^thus, Dall. 



Cat. Hem. i, 110 (1851). 



Oval, slightly convex ; sides of the head and pronotum set with 



projecting hairs. 



Sead 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. £!^es scarcely projecting beyond the circumference of 

 the head, posteriorly touching the pronotum. Ocelli small, distant, 

 inserted near the posterior margin of the head. Rostrum long, 

 slender, 3rd joint longest. 



Tliorax — Pronotum trapezoidal, almost quadrate, emarginate in front. 

 Scutellum lai-ge, 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 ; memhrane short, thin. 

 Sternum — prosternum deeply sulcate transversely at the sides ; 

 mesosternum with a broad keel. Legs stout, fossorial; thighs 

 compressed ; tihice 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. 

 Black, shining; pronotum without transverse depression, very 

 finely punctured, except on a large smooth space on each side of the 

 middle anteriorly ; scutellum and corittm finely punctured, with two 



