Coptodryas quadricostata

Taxonomic history

Xyleborus quadricostatus Schedl, 1942c: 30.

Coptodryas quadricostata (Schedl): Wood & Bright, 1992: 826.

Diagnosis

3.0 mm long (n = 1); 2.0 times as long as wide (Sittichaya et al. 2019Sittichaya et al. 2019:
Sittichaya W, Smith SM, Beaver RA. 2019. Ten newly recorded species of xyleborine ambrosia beetles (Coleoptera, Curculionidae, Scolytinae, Xyleborini) from Thailand. ZooKeys 862: 109-127. https://doi.org/10.3897/ zookeys.862.34766). This species can be distinguished from by the unique declivitaldeclivital:
pertaining to the elytral declivity
summit bearing four sharp spinesspine:
an elongate projection of the exoskeleton that is longer than its basal width
that extend beyond the over the declivitydeclivity:
downward slope of either the pronotum or elytra
.

May be confused with

none

Distribution

‘Borneo’, East & West Malaysia, Indonesia (Java), Thailand

Host plants

recorded from Campnosperma sp. (Anacardiaceae), Shorea leprosula, S. parvifolia (Dipterocarpaceae), Elaeocarpus sp. (Elaeocarpaceae), and Garcinia sp. (Guttiferae) (Sittichaya et al. 2019Sittichaya et al. 2019:
Sittichaya W, Smith SM, Beaver RA. 2019. Ten newly recorded species of xyleborine ambrosia beetles (Coleoptera, Curculionidae, Scolytinae, Xyleborini) from Thailand. ZooKeys 862: 109-127. https://doi.org/10.3897/ zookeys.862.34766)

Remarks

Browne (1961b) notes that the species attacks small branches 1‒5 cm in diameter. The gallery system usually encircles the stem and has 1‒2 longitudinal branches in which the larvae develop (Browne 1961bBrowne 1961b:
Browne FG. 1961b. The biology of Malayan Scolytidae and Platypodidae. Malayan Forest Records 22: 1-255.).

DNA data

Sequences available for COI and CAD.

COI: OP617800

CAD: OP607230