March, 1879] 217 



SEMO, n. g. 



Body oblong. Head rather wider than the pronotum, distinctly 

 roundly prominent between the eyes. Vertex transversely oblong, 

 crossed by two somewhat curved transverse keels, in front of the 

 middle of the anterior of which is a small depression at the base of 

 the frons ; hind margin straight. Frons trapezoidal, broader at the 

 apex, where its produced sides clasp the clypeus on each side ; sides 

 sharply margined ; disc very convex. Clypeus exceedingly convex, 

 almost semi-globose, with sharply margined sides. Eyes somewhat 

 sinuate below. Ocelli two. Antennae inserted below the eyes, short, 

 1st joint obscure, 2nd globose. Pronotum short, with two point-like 

 depressions behind the centre of the front margin on each side of the 

 obscure longitudinal keel ; hind margin angularly sinuate. Scutellum 

 with three keels, the central faint and almost or quite vanishing beyond 

 the middle. Tegmina narrow. Hind tibiae with three teeth. 



Somewhat allied to Duilius, Stal. 



78. Semo clypeatus, n. sp. 



Pale ochreous-brown. Head (except the keels of the vertex, sides of the frons, 

 a longitudinal central line on the frons, and the antennae), scutellum (except the 

 side margins), apex of the tarsi, and abdomen (except the genitalia), more or less 

 piceous or piceous-black. S ? . Length, 4 — 5 ; breadth, 2 mm. 



Professor Hutton (four examples). 



Suh-Fam. ACHILIJD^. 

 AGANDECCA, n. g. 



Body oblong. Head narrower than the pronotum ; vertex trans- 

 verse, much broader than long, very obtusely angularly prominent 

 between the eyes, disc hollowed, with an obsolete central longitudinal 

 keel, strongly transversely keeled in front, and with two triangular 

 pits between the keel and the frons, hind margin angularly sinuate. 

 Erons and clypeus narrowly elliptic, with central keel and keeled 

 margins ; base and apex of frons equally broad. Eyes rounded, scarcely 

 emarginate below. Antennae short, 2nd joint sub-globose. Pronotum 

 very short, with central keel and oblique curved side keels, which do 

 not reach the deeply angularly-sinuate hind margin. Scutellum nearly 

 equally long and broad, with three straight keels. Tegmina rounded 

 at the end ; radial and outer ulnar veins joined near the base, the 

 radial and inner ulnar forked before the middle of the tegmina ; several 

 long and irregular cells before the rather numerous apical cells. Hind 

 tibiae with one small spine and the usual apical coronet. 



Allied to Messeis, Stal. The formation of the head and thorax 

 is much like that of Cixius. 



