Anastrangalia

Subfamily

Lepturinae

Diagnosis - adult

Body length: 9–16mm.
Eyes: eye interommatidial setaeseta:
a sclerotized hair-like projection of the cuticle
absent, eye entire/shallowly emarginateemarginate:
notched at the margin
, rarely deeply emarginateemarginate:
notched at the margin
> half width, eye ommatidial density fine. 
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
, rarely 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 or segment 3 > scapescape:
the first proximal segment of the antenna

Pronotumpronotum:
the upper and dorsal part of the prothorax
: pronotumpronotum:
the upper and dorsal part of the prothorax
shape longer than wide, 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
emarginate, with tooth or spinespine:
a protuberance with an acute (sharp) distal end
, rarely rounded or truncatetruncate:
cut off squarely at the tip
, elytral color black, reddish or orange, elytral color pattern present or absent. 
Legs: visible tarsomeres: 4, femora slender, protibial spurs: 2, tarsal claws simple.

Form moderate sized, tapering posteriorly. Head oblique, front short; tempora moderate, parallel, abruptly constricted behind; palpi unequal, slender; vertexvertex:
the top of the head between the eyes, frons and occiput, anterior to the occipital suture
broad, almost plane; eyes finely faceted, notched; 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
slender, inserted on front near top of lower eye lobelobe:
a rounded projection or protuberence
, outer segments slightly expanded at apicesapex:
end of any structure distad to the base
, especially in males, third segment subequal to first, fourth shorter than third, fifth equal to or longer than third, poriferous areas absent. Pronotumpronotum:
the upper and dorsal part of the prothorax
longer than broad, subcylindrical, hind angles rounded; apexapex:
end of any structure distad to the base
slightly narrowing, barely impressed; basebase:
the part of any appendage or structure that is nearest the body
shallowly impressed across disk; disk weakly convex, not impressed longitudinally; prosternum narrowly impressed at apexapex:
end of any structure distad to the base
, coxal cavities closed behind; mesosternal processmesosternal process:
a prolongation of the mesosternum extending between the mesocoxae
almost flat, lying below tops of coxae. 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
slightly dehiscent at apices; usually opaque in females; apicesapex:
end of any structure distad to the base
truncate, usually unarmed; Wings without a closed cell in anal sector. Legs slender; posterior tarsitarsus:
the leg segment distal to the apex of the tibia, bearing the pretarsus; consists of one to five tarsomeres (including pretarsus)
slender, at least as long as hind femora, first segment as long as following segments together, third segment not cleft beyond middle. Abdomen normally segmented (Chemsak 2005Chemsak 2005:
Chemsak, J.A.. 2005. Illustrated Revision of the Cerambycidae of North America. Volume II. Lepturinae. Wolfsgarden Press, Chino, CA: i-xv + 1-446, 27 pls.
).

Differential diagnosis

This genus is characterized by the subcylindrical, weakly convex, and shallowly impressed pronotumpronotum:
the upper and dorsal part of the prothorax
. The very short face, the subparallel tempora, and the weakly subserrate 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
are also distinctive (Chemsak 2005Chemsak 2005:
Chemsak, J.A.. 2005. Illustrated Revision of the Cerambycidae of North America. Volume II. Lepturinae. Wolfsgarden Press, Chino, CA: i-xv + 1-446, 27 pls.
).

Distribution

Palearctic, Nearctic, Neotropical

Recorded host plants

Abies, Picea, Pinus, Larix, Pseudotsuga, Tsuga; Juniperus; broadleaf trees

Remarks

13 species and 5 more sspp. All species seem to occur on conifers but some also will develop in broadleaf trees.

Synonyms

Marthaleptura Ohbayashi, 1963, Fragmenta Coleopterologica (2): 9

Taxonomy

Strangalia (Anastrangalia) Casey, 1924, Memoirs on the Coleoptera, Lancaster 11: 280

  Anastrangalia dubia  dorsal

Anastrangalia dubia dorsal

  Anastrangalia dubia  ventral

Anastrangalia dubia ventral

  Anastrangalia dubia  frontal

Anastrangalia dubia frontal

  Anastrangalia dubia  lateral

Anastrangalia dubia lateral

 MI15-02-1  Anastrangalia dubia  voucher
MI15-02-1 Anastrangalia dubia voucher