Eccoptopterus spinosus
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Eccoptopterus spinosus lateral; R.K. Osborn |
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Eccoptopterus spinosus dorsal; R.K. Osborn |
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Eccoptopterus spinosus declivity; R.K. Osborn |
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Eccoptopterus spinosus frontal; R.K. Osborn |
Taxonomic history
Scolytus spinosus Olivier, 1800: 9.
Eccoptopterus spinosus (Olivier): Schedl, 1962a: 201.
Synonyms
Eccoptopterus sexspinosus Motschulsky, 1863: 515. Schedl 1962a: 201.
Xyleborus abnormis Eichhoff, 1869: 282. Eichhoff 1876b: 379.
Platydactylus gracilipes Eichhoff, 1886: 25. Hulcr and Cognato 2013: 87.
Xyleborus sexspinosus multispinosus Hagedorn, 1908: 377. Schedl 1963a: 92.
Xyleborus collaris Eggers, 1923: 194. Schedl 1970b: 225 (as synonym of E. gracilipes)
Eccoptopterus sagittarius Schedl, 1939b: 41. Hulcr and Cognato 2013: 87.
Eccoptopterus sexspinosus pluridentatus Schedl, 1942c: 49. Kalshoven 1959a: 96 (as synonym of multispinosus)
Xyleborus eccoptopterus Schedl, 1951b: 154. Beaver 1987: 67.
Diagnosis
2.5−3.7 mm long (mean = 2.9 mm; n = 5); 2.06−2.27 times as long as wide. This species can be distinguished by the presence of three spinesspine:
an elongate projection of the exoskeleton that is longer than its basal width
on each elytralelytral:
pertaining to the elytra
margin, with the largest spinespine:
an elongate projection of the exoskeleton that is longer than its basal width near the declivitaldeclivital:
pertaining to the elytral declivity
summit.
May be confused with
Distribution
throughout the tropical regions of Africa and Asia to New Guinea, Australia, the Solomon Islands and Samoa; recorded in the study region from Cambodia, China (Yunnan), India (Andaman Is, Assam, Maharashtra, Sikkim, Tamil Nadu, West Bengal), Laos, Myanmar, Taiwan, Thailand, Vietnam
Host plants
polyphagous (Browne 1961aBrowne 1961a:
Browne FG. 1961a. Borer beetles from Bako National Park (Sarawak). Sarawak Museum Journal 10: 300-318., Schedl 1963aSchedl 1963a:
Schedl KE. 1963a. Scolytidae und Platypodidae Afrikas. Band II. Familie Scolytidae (Fortsetzung), Unterfamilie Ipinae (Fortsetzung). Revista de Entomologia de Moccedil;ambique 5: 1-594.)
Remarks
Following Bousquet (2018), we date the original description of the species to 1800 rather than the usually cited 1795.
Eccoptopterus spinosus is a morphologically variable species and represents a species complex that will require a more detailed investigation to address. COI sequences from specimens collected from Ghana, Papua New Guinea, Indonesia (Java), Taiwan, and Vietnam differed from 12−18% between sites, and CAD varied by 2−7% (Cognato et al. 2020).
DNA data
Sequences available for COI and CAD.
COI: HM064080; HM064082; MN619917; MN619916; MN619915; MN619918; MN619919; MN619920
CAD: HM064262; HM064260; HM064259; MN620194; MN620195; MN620196
