60 Mr. Walter F. H. Blandford on the 
Hyorrhynchus lewisi, sp. n. 
Oblongo-ovatus, opacus, niger, pube sericea fusco-cinerea dense 
vestitus, antennis tarsisque ferrugineis ; prothorace transverso, 
basi bisinuata, lateribus postice parcius, antice fortius rotundatis, 
supra post apicem longitudinaliter impresso, dense granulato ; 
elytris post medium dilatatis, supra tenuiter striatis, fuliginosis, 
vitta transversa angulata et apice cinereis, interstitiis leniter 
convexis ad basim granulatis. Long. 3°5—5°3 mm. 
Mas. Capite fortiter longitudinaliter;sulcato, rostro longiore 
ad apicem in angulos prominentes lateraliter producto.’ 
Fem. Capite subconvexo, rostro breviore; prothoracis lateribus 
antice muricatis. 
Several examples taken at Sapporo, in 1883, by a 
native collector. 
Head in the male produced obliquely forward into a flattened 
rostrum, the carinate sides of which form a sharp prominent and 
backwardly directed angle; upper divisions of the eyes rounded 
triangular, situated on either side of front, which is deeply furrowed 
between them, and finely carinate on the inner margin of each 
eye-segment ; lower divisions of the eyes hidden from above by 
the lateral carina. Head in the female with a very short rostrum, 
narrowly carinate and not produced at sides, impressed over mouth 
and with a short median carina; in both sexes black, rugosely 
punctured with short close-lying hairs. Antenne ferruginous. 
Prothorax narrowed in front, widest at base, with sides rounded; 
surface black, pilese, with short cinereous hairs, closely granulate 
and muricate at sides in the female, with a weak impression on 
either side towards the base. Scutellum rounded, pubescent. 
Elytra wider than prothorax, and more than twice as long, dilated 
behind middle, separately rounded at base, and overlapping thorax, 
inflexed below humeral angles to afford room for middle femora, 
sides nearly straight to behind middle, thence strongly rounded ; 
surface covered with fine close-lying hairs, smoky-black except on 
humeral angles, apex, and an oblique angulated vitta, where they 
are cinereous, With fine incised strize meeting at apex, as in 
Hylesinus, interstices subconvex, granulate at base. Underside black 
with fine close punctuation, pubescent. Legs piceous with tarsi 
lighter. 
The sexual differences in the rostrum are not found 
in any other Scolytid known to me, and suggest those 
of the Brenthidx, with which this insect has no affinity. 
