Monochamus sartor urussovii

Taxonomic history

Cerambyx urussovii Fischer von Waldheim, 1806: 12

Diagnosis - adult

Length: 18–37 mm.
Elytral length:width ratio: length > 2x width.
Face: shape wide rectangle; genagena:
the part of the cranium on each side below the eye
length shorter than lower eye lobeeye lobe:
used to refer to the upper or lower portion when the eye is emarginate or separated
or subequal to lower eye lobeeye lobe:
used to refer to the upper or lower portion when the eye is emarginate or separated
.
Pronotum: dense setaeseta:
a sclerotized hair-like projection of the cuticle
on dorsum of lateral spines absent; maculaemacula:
a spot or mark
on pronotal disk: 2–4 dots present or absent; posteromedial tubercletubercle:
a small knoblike or rounded protuberance
absent; lateral erect setaeseta:
a sclerotized hair-like projection of the cuticle
: only present posterior to spinespine:
a protuberance with an acute (sharp) distal end
.
Scutellum: dense and complete pubescence.
Elytra: elytral integument color black; elytral maculaemacula:
a spot or mark
: pubescence forming horizontal band(s) or sparse ash-like pubescence; elytral sutural apexapex:
end of any structure distad to the base
rounded; elevation in basal third followed by impression present; basal granulation dense and smooth or dense and coarse; middle to apical punctationpunctation:
pits or depression of variable size in cuticle
fine.
Antennal length (female): 2–3.5 segments beyond elytral apexapex:
end of any structure distad to the base
.
Aedeagus: paramereparamere:
A pair of finger-like structures that are located where the male genitalia exits the abdomen.
mediobasal tooth present; apical tip (ventral view) truncatetruncate:
cut off squarely at the tip
or slightly rounded; terminal segment present; scleritesclerite:
any hardened plate of the body wall bounded by membrane or sutures; sometimes found floating in the internal sac of male genitalia
in internal sac: contains a scleritesclerite:
any hardened plate of the body wall bounded by membrane or sutures; sometimes found floating in the internal sac of male genitalia
in internal sac.

Well distinguished from other species of this genus by dense bright hairs imparting a vivid hue to the hind clivus of the elytraelytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
, flat, entirely and densely covered shield, and other characters. Body comparatively large. Head with moderate, not very dense, sometimes evanescent punctationpunctation:
pits or depression of variable size in cuticle
, near basebase:
the part of any appendage or structure that is nearest the body
of antennaeantenna:
in larval and adult insects, paired segmented appendages, borne one on each side of the head, functioning as sense organs and bearing a large number of sensilla
on inner side with highly (male) or insignificantly (female) produced tubercletubercle:
a small knoblike or rounded protuberance
, medially between antennaeantenna:
in larval and adult insects, paired segmented appendages, borne one on each side of the head, functioning as sense organs and bearing a large number of sensilla
with deep narrow (male) or broad gentle (female) longitudinal trough. punctationpunctation:
pits or depression of variable size in cuticle
,.0–2.5 times longer than body (male) or barely (by l0th–11th segment) extending beyond apexapex:
end of any structure distad to the base
of elytraelytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
(female). First antennal segment thick, with coarse compact punctationpunctation:
pits or depression of variable size in cuticle
, apically on outer side with sharply demarcated semicircular mark. Pronotumpronotum:
the upper and dorsal part of the prothorax
not longer or barely longer than its basal width, in anterior third and basally with distinct flange, here generally transversely striatestriate:
marked with parallel, fine, longitudinal, impressed lines or furrows
, disk with uneven, sometimes faint punctationpunctation:
pits or depression of variable size in cuticle
, laterally with highly extended conicalconical:
wider at base than apex
tubercle. Pronotal shield flat, posteriorly broadly rounded, entirely covered with dense whitish or yellowish hairs. ElytraElytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
elongateelongate:
much longer than wide
, parallel-sided (female) or markedly tapering toward apexapex:
end of any structure distad to the base
, at latter jointly rounded, convex, in anterior half with transversetransverse:
broader than long
notch, before this notch with bold compact, and in front minute punctationpunctation:
pits or depression of variable size in cuticle
, with short sparse, on hind clivus dense gray hairs, imparting here whitish tinge to common black background. Body ventrally with short white adherent and long brownish semierect hairs not forming continuous pubescence. Legs long, femora uniformly insignificantly thickened, hind tarsitarsus:
the leg segment distal to the apex of the tibia, bearing the pretarsus; consists of one to five tarsomeres (including pretarsus)
two-third (male) or one-half (female) length of tibiaetibia:
the leg segment distal to the femur, proximal to the tarsus
. Body, antennaeantenna:
in larval and adult insects, paired segmented appendages, borne one on each side of the head, functioning as sense organs and bearing a large number of sensilla
, and legs black; elytraelytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
black, disk with uneven white pilose spots (female) or without them (male), hind clivus with whitish or slightly rusty tinge. Body length 18–37 mm. (Cherepanov 1990Cherepanov 1990:
Cherepanov AI. 1990. Cerambycidae of Northern Asia, Vol. 3. Lamiinae, Part I. Oxonian Press, New Delhi 4: i–xiii + 1–300, 120 figs.)

Differential diagnosis

Has dense light setaeseta:
a sclerotized hair-like projection of the cuticle
on the apical third of the elytraelytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
not found in M. s. sartor. The elytral sculpture is punctatepunctate:
set with fine, impressed points or punctures appearing as pin-pricks
and more matte than the shining and impunctate M. nitens. New World Monochamus species do not have a distinct raised area followed by an impression at the basebase:
the part of any appendage or structure that is nearest the body
of the elytraelytron:
the leathery forewing of beetles, serving as a covering for the hind wings, commonly meeting opposite elytron in a straight line down the middle of the dorsum in repose
or a scleritesclerite:
any hardened plate of the body wall bounded by membrane or sutures; sometimes found floating in the internal sac of male genitalia
in the male genitalia.

Distribution

Japan and Korea west to eastern Europe with a putative hybrid zone in Poland 

Recorded host plants

Abies, Larix, Picea, Pinus (Titan DatabaseTitan Database:
Tavakilian GL and Chevillotte H. 2022. Titan: base de données internationales sur les Cerambycidae ou Longicornes. Version 3.0. Available from: http://titan.gbif.fr/ last accessed September 2022)

Synonyms

Monohammus quadrimaculatus Motschulsky, 1845: 86 

Monochamus Rosenmülleri var. Schaufusi Pic, 1912: 18