12 BULLETIN OF THE LIVERPOOL MUSEUMS. 
In both sexes, the last ventral segment is broadly truncate behind. The 
one male specimen captured is much smaller than either of the two females, 
and differs further in having the elytra marked with a number of fuscous lines. 
Cerambycide. 
(13) GEme fusca. 
(B. lineari (Harr.) sub-similis sed paullo latior, oculis minus profunde 
emarginatis, antennis subtus minutius spinosulis, abdomine breviore. Long. 
13-16, lat. 23-3} mm. 
Habitat. Sokotra ; Dahamis (alt. 350-1000 ft., XII. 98). 
Dark brown in colour, varying in parts to brownish testaceous, covered 
with a faint greyish pubescence. Antenne of the male more than half as 
long again as the body ; those of the female a little longer than the body ; 
joints third to fifth shortly spinose underneath. Elytra closely punctured, 
the disk of each marked with two raised lines. 
Notwithstanding its habitat, this species seems to be correctly placed in 
the genus Gime, and to be not very distantly allied to ths North-American 
species (E. linearis from which it is chiefly distinguishable by its darker colour, 
somewhat broader form, less deeply emarginate eyes, and less strongly spinose 
antenne. 
(14) Idactus granti. 
Pube cinerea, griseo-brunneo-varia dense obtectus ; elytris postice 
lateraliterque fusco-nebulosis, utrisque ad medium plaga obliqua albo-grisea ; 
prothorace lateraliter valde tuberculato, disco vix pone medium tuberculo 
parvo conico instructo, et ante medium linea bisinuata notato, basi apiceque 
transversim fere recte bilineato; utroque elytro prope basin tuberculis 
duobus parvis instructo. Long. 10-15, lat. 4-6 mm. 
Habitat. Sokotra : (Dahamis, Jena-agahan, Hadibu Plain and Homhil). 
Allied to I. maculicornis, Gahan, and. differing from it as follows :— 
Pubescence much paler in colour ; elytra longer and less convex, without 
tufts of hairs, and with the two tubercles near the base of each much 
smaller ; pygidium of the female without the two tufts of tawny hairs which 
are present in the female of maculicornis. 
Sybrinus, gen. nov. 
Head slightly transverse in front, feebly concaye above between the 
antennal tubercles ; eyes coarsely facetted, deeply emarginate with the lower 
lobes slightly transverse. Antenne of the male about half as long again as the 
body, those of the female about reaching to the apex of the elytra, fourth 
joint equal in length to the second and third united, and scarcely longer than 
the first, fifth shorter than fourth, sixth to eleventh gradually diminishing in 
length. Prothorax unarmed, and slightly rounded at the sides, its length 
about equal to its width across the base. Elytra broader than the prothorax, 
nearly parallel-sided in their anterior two-thirds, and thence narrowed to the 
apex. Legs rather short : with the femora stout and clavate ; tibiz of the 
middle pair notched on the outside below the middle, those of the hind pair 
sinuate on the outer border below the middle, and furnished with a row of 
short stiff seta ; tibize of the anterior pair with a finely serrate ridge along 
the outer border ; claws of the tarsi widely divergent. Prosternal process 
slightly arched in the middle, rather widely dilated behind the coxe. 
Mesosternal process with a small angular dilatation on each side near its 

