Arixyleborus guttifer ( Schedl, 1955 )

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, Taxonomic Changes For Indo-Malayan Ambrosia Beetles (Coleoptera: Curculionidae: Scolytinae: Xyleborini), The Coleopterists Bulletin 74 (1), pp. 37-40 : 38

publication ID

https://doi.org/ 10.1649/0010-065X-74.1.37

publication LSID

urn:lsid:zoobank.org:pub:92D29773-D046-40F7-B886-2C9206D1FCB3

DOI

https://doi.org/10.5281/zenodo.3809082

persistent identifier

https://treatment.plazi.org/id/C62A617B-FA6C-8B2C-FF65-FA1611C9FC42

treatment provided by

Felipe

scientific name

Arixyleborus guttifer ( Schedl, 1955 )
status

status restored

Arixyleborus guttifer ( Schedl, 1955) View in CoL , status restored

Xyleboricus guttifer Schedl 1955: 297 View in CoL .

Arixyleborus guttifer (Schedl) View in CoL : Schedl 1958: 145.

Hulcr and Cognato (2013) placed Xyleboricus guttifer in synonymy with Arixyleborus scabripennis (Blandford) , stating that the holotype of A. guttifer had elytral sculpture identical to A. scabripennis , except that the pubescence was completely abraded. We compared the holotype (in Natural History Museum, London, UK) and a series of A. scabripennis from Brunei Darussalam, East and West Malaysia, and Thailand with the holotype (in Naturhistorisches Museum) and a series of six unabraded specimens of A. guttifer from Papua New Guinea collected by B. Jordal. The specimens of A. guttifer are slightly more elongate (mean length: width ratio 2.36 in A. guttifer vs. 2.29 in A. scabripennis (n = 5 for each species). When not abraded, the pronotal disc of A. guttifer bears long, fine, semi-appressed hairs, compared to A. scabripennis that bears shorter, slightly coarser, more erect hairs. The scutellum of A. guttifer is slightly concave and the rim slightly raised; in A. scabripennis , it is flat without a raised margin. The rows of interstrial tubercles on the elytral disc anterior to the declivity are smaller, shorter, and less sharply pointed in A. guttifer than in A. scabripennis . The interstrial vestiture of A. guttifer consists solely of long, fine hairs. In A. scabripennis , declivital interstria 1 bears 1 or 2 rows of short, very coarse, erect setae; interstriae 2–4 have a single row of similar setae; the median row of setae become more hair-like in the outer interstriae but always shorter than those of A. guttifer ; interstriae 1–3 or 1–4 also have an irregular row of very short, pointed setae on each side of the median row. In view of these differences, we remove A. guttifer from synonymy with A. scabripennis and reinstate it as a distinct species.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Arixyleborus

Loc

Arixyleborus guttifer ( Schedl, 1955 )

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I. 2020
2020
Loc

Xyleboricus guttifer

Xyleboricus guttifer Schedl 1955: 297 .
Loc

Arixyleborus guttifer (Schedl)

Schedl 1958: 145
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