1900. ] IN THE HOPE COLLECTION AT OXFORD. 815 
Abdomen probably spined at base, but mutilated there by pin in 
type and only specimen. 
Allied to Menida Motsch. 
AcTUARIUS ALBoNoTATUS. (Plate LIT. fig. 11.) 
Pentatoma albonotata Westw. in Hope Cat. i. p. 37 (1837). 
Hab, Gambia. 
MENIDA HISTRIO. 
Cimex histrio Fabr. Mant. i. p. 296. n. 176 (1787). 
Pentatoma bengalensis Westw. in Hope Cat. i. p. 36 (1837). 
OctrRHO: RonI. (Plate LIL. fig. 12.) 
Rhynchocoris roci Westw. in Hope Cat. i. p. 380 (1837) ; Leth. & 
Sev. Cat. Gén. Hém.i. p. 181 (1898). 
The species identified by Dallas (List Hem. i. p. 297. n. 4, 1851) 
is not conspecific. 
OctrrHo: ? virescens. (Plate LILI. fig. 7.) 
Raphigaster virescens Westw. in Hope Cat. i. p. 31 (1837). 
The type and only specimen is in a very mutilated condition, 
wanting the abdomen, but the species apparently belongs to the 
genus Ocirrhoé. 
AVICENNA, gen. nov. 
Head deflected, moderately broad, lobes of equal length, apex 
rounded, lateral margins moderately sinuate at about centre. 
Antenne with the second and third joints subequal in length, or 
second slightly shorter than the third. Pronotum strongly de- 
flected anteriorly from between the area of the lateral angles ; 
Jateral margins moderately concavely sinuate, punctate before 
anterior margin, posterior margin strongly concave at base of 
scutellum ; posterior angles subprominent, lateral angles produced 
in long acute spines. Scutellum broad, distinctly narrowed a 
little before apex. Rostrum with the second and third joints 
about subequal in length. Sternal process extending beyond base 
of head. Spines at apices of sixth abdominal segment and anus 
strongly developed. 
This genus agrees with Morna in the concave posterior margin 
of the pronotum, but differs in not having the posterior pronotal 
angles acutely produced. It is allied to Vitellus by the shape and 
production of the sternal process, but differs by the less triangular 
and elongate head, the longer and non-triangular scutellum, &e. 
AVICENNA INQuUINATA. (Plate LILI. fig. 1.) 
Rhynchocoris inquinata Westw. in Hope Cat. i. p. 29 (1837). 
Cuspicona inguinata Walk. Cat. Het. i. p. 387. n. 29 (1867). 
Vitellus inquinatus Leth. & Sev. Cat. Gen. Hem. p. 182 (1893). 
[9] 
