Ceresium

Subfamily

Cerambycinae

Diagnosis - adult

Body length: 6–18 mm. 
Eyes: eye interommatidial setaeseta:
a sclerotized hair-like projection of the cuticle
present, eye deeply emarginateemarginate:
notched at the margin
> half width, eye ommatidial density coarse. 
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
: antennal length reaches between basebase:
the part of any appendage or structure that is nearest the body
and end 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
or reaching/surpassing end of body, antennal flagellar segments elongateelongate:
much longer than wide
, scapescape:
the first proximal segment of the antenna
smooth/punctate at apexapex:
end of any structure distad to the base
, antennal scapescape:
the first proximal segment of the antenna
≥ segment 3. 
Pronotumpronotum:
the upper and dorsal part of the prothorax
: pronotumpronotum:
the upper and dorsal part of the prothorax
shape transversetransverse:
broader than long
or subquadratesubquadrate:
 not quite a square
, pronotumpronotum:
the upper and dorsal part of the prothorax
lateral armature absent. 
Prosternum: prosternal process dilated at apexapex:
end of any structure distad to the base
, procoxal cavities open posteriorly. 
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
: elytral length reaching or close to end of abdomen, elytral apicesapex:
end of any structure distad to the base
rounded or truncatetruncate:
cut off squarely at the tip
or with tooth or spinespine:
a protuberance with an acute (sharp) distal end
, elytral color black, brown, yellow, reddish, or orange, elytral color pattern present or absent. 
Legs: visible tarsomerestarsomere:
subdivision or article of the tarsus, usually numbering from two to five
: 4, femora clavateclavate:
thickening gradually toward the tip
, protibial spurs: 2, tarsal clawstarsal claw:
usually paired claws of the pretarsus, at the distal end of the leg
simple.

Similar genera

Trinophylum, Stenygrinum, Stenodryas, Oebarina

Differential diagnosis

Distinguished from other similar members of tribe Callidiopini by antennomereantennomere:
a subunit of the antenna, including the scape, pedicel, and flagellomeres
3 longer or = to scapescape:
the first proximal segment of the antenna
, antennomereantennomere:
a subunit of the antenna, including the scape, pedicel, and flagellomeres
4 < scapescape:
the first proximal segment of the antenna
, and pronotumpronotum:
the upper and dorsal part of the prothorax
subquadrate often with spots of dense setaeseta:
a sclerotized hair-like projection of the cuticle
. Oebarina has a heavily punctatepunctate:
set with fine, impressed points or punctures appearing as pin-pricks
pronotumpronotum:
the upper and dorsal part of the prothorax
and femora more slender. Similar looking Hesperophanini species have slender femora.

Distribution

Indomalaya, Australasian, Palearctic (Asia), Afrotropical, introduced Neotropical

Recorded host plants

broadleaf trees

Remarks

Three subgenera: Ceresium 166 sp.; Ceresiellum 3 spp.; Paraceresium 1 sp. C. (Ceresium) unicolor is most commonly intercepted.

Synonyms

Diatomocephala Thomson, 1864Thomson, 1864:
Thomson J. 1864–65. Systema cerambycidarum ou exposé de tous les genres compris dans la famille des célrambycides et familles limitrophes. H. Dessain, Liége, 578 pp. [1864: pp. 1–352; 1865: 353–578; Also published in Mémoires de la Société Royale des Sciences de Liége 19 [1866]: 1–578]. [for Ceresium]

Raphidera Perroud, 1855 [for Ceresium]

Taxonomy

Subgenus Ceresium Newman, 1842

Subgenus Ceresiellum Gressitt, 1956

Subgenus Paraceresium Matsushita, 1932