Euwallacea funereus
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Euwallacea funereus lateral; R.K. Osborn |
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Euwallacea funereus dorsal; R.K. Osborn |
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Euwallacea funereus declivity; R.K. Osborn |
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Euwallacea funereus frontal; R.K. Osborn |
Taxonomic history
Xyleborus funereus Lea, 1910: 139.
Ambrosiodmus funereus (Lea): Wood, 1989: 169.
Euwallacea funereus (Lea): Hulcr and Cognato, 2010a: 16.
Synonyms
Xyleborus nepos Eggers, 1923: 198. Schedl, 1933: 103.
Xyleborus n. robustus Schedl, 1933: 103. Wood, 1989: 169−170.
Xyleborus signatus Schedl, 1949: 278. Wood, 1975a: 23.
Diagnosis
3.45−3.7 mm long (mean = 3.65 mm; n = 5); 2.46−2.55 times as long as wide. This species is distinguished by the pronotumpronotum:
the dorsal surface of the thorax
appearing subquadratesubquadrate:
almost quadrate, with oblique corners
(type 3) from dorsaldorsal:
of or relating to the upper surface; opposite of ventral
view; outer margin of protibiaprotibia:
tibia of the first pair of legs
round; declivitaldeclivital:
pertaining to the elytral declivity
interstriae 1 unarmed; posterolateralposterolateral:
relating to end of the side part/portion
margin of declivitydeclivity:
downward slope of either the pronotum or elytra
carinate, never granulategranulate:
pertaining to a coarse, grainy surface texture
and moderately large size.
May be confused with
Euwallacea interjectus and E. validus
Distribution
Australia, India (Andaman Is., Nicobar Is.), Indonesia (Java, Sumatra, Sumbawa, Sulawesi, Ternate), East Malaysia, New Guinea, Philippines, Solomon Islands, Taiwan, Thailand
Host plants
polyphagous (Kalshoven 1959bKalshoven 1959b:
Kalshoven LGE. 1959b. Studies on the biology of Indonesian Scolytoidea 4. Data on the habits of Scolytidae. Second part. Tijdschrift voor Entomologie 102: 135-173 + pls. 15-22.)
Remarks
Kalshoven (1959b) gives details of brood sizes at various stages of development of the gallery system.
The species is not monophyletic and in need of revision (Cognato et al. 2020bCognato et al. 2020b:
Cognato AI, Sari G, Smith SM, Beaver RA, Li Y, Hulcr J, Jordal BH, Kajimura H, Lin C-S, Pham TH, Singh S, Sittichaya W. 2020b. The essential role of taxonomic expertise in the creation of DNA databases for the identification and delimitation of Southeast Asian ambrosia beetles species (Coleoptera: Curculionidae: Scolytinae: Xyleborini). Frontiers in Ecology and Evolution 8: 27. https://doi.org/10.3389/fevo.2020.00027).
DNA data
Sequences available for COI and CAD.
COI: HM064052; MN619928; MN619929
CAD: HM064231.1; MN620202; MN620203
