Chydaeopsis torrejosae, Barševskis, 2023

Barševskis, Arvīds, 2023, Two new species of long-horned beetles (Coleoptera: Cerambycidae) from the Philippines, Baltic Journal of Coleopterology 23 (2), pp. 249-254 : 250-251

publication ID

https://doi.org/ 10.59893/bjc.23(2).011

persistent identifier

https://treatment.plazi.org/id/03EA87DF-2F16-916D-EE2A-7148FB46A5B4

treatment provided by

Felipe

scientific name

Chydaeopsis torrejosae
status

sp. nov.

Chydaeopsis torrejosae sp. nov.

( Fig. 1 View Fig )

Type material

Holotype: male. Philippines, Panay Isl. / Antique, 09.2018 / local collector leg. <handwritten> // HOLOTYPUS: / Chydaeopsis / torrejosae sp. nov. / A. Barševskis det. 2023. <red label, handwritten>. Deposited in DUBC.

General distribution: Philippines: Panay Island.

Description. Body elongate, black, surface with dark and silver-grey pubescence ( Fig. 1 View Fig ). Body length: 9.1 mm, maximal width of elytra: 2.6 mm.

250 Head flat, wide, with almost parallel sides, with slightly convex eyes. Cheeks not extended, covered with silver-grey sparse pubescence. Surface of head shiny, with fine punctation under dense pubescence. Middle portion of head with longitudinal thin line, slightly impressed in the middle part between eyes. Labrum pubescent, punctated, covered with pubescence. Clypeus brown, narrow, transverse, shiny. Mandibles shiny, dark brown, massive, with acute apices, with very fine, sparse punctures in basal part, covered with very sparse silver-grey pubescence. Antennae thin, dark-brown, very long, about twice as long as the body, covered with dense dark pubescence; basal antennomere thickened, with sparse fine punctures and pubescence. 1st, 3rd, 4th and 5th antennomeres with row of bristles.

Pronotum dark-brown, almost cylindrical, convex and matt, with very fine microsculpture. Frontal and basal portions of pronotum slightly neck-shaped narrowed, without basal angles. Pronotal disc black, dorsally covered with dense fine dark pubescence, with middle line, covered with white pubescence and form narrow elongated band. Lateral portions of pronotal disc covered with dense white pubescence.

bands behind the middle and before apex of elytra. Along the suturae before middle elytra of new species without two oval brown spots.

Etymology. Patronym. This species is named after the my good colleague Chrestine Torrejos (University of Mindanao, Davao, Philippines) in gratitude to her contribution to Coleoptera research in Philippines.

Scutellum small, rounded apically, covered with white dense pubescence, without middle impression. Pars stridens not visible because it is under the posterior edge of the pronotum.

Elytra dark brown, behind middle darkened, matt, with relatively coarse punctures in regular rows, slightly impressed in basal part. Each elytron with well-developed flattened hump behind scutellum around suturae. Elytral shoulders not extended, weekly developed. Dorsal part of elytra and suturae in basal portion before middle paler and covered with very fine pubesceence, except brown 2nd - 3rd intervals, covered by dark pubescence. Other portions of elytra dark and covered with dark pubescence. Middle portion of elytra toward apex with dark-brown suturae, darkened dorsally. Apical portions of elytra dorsally with two small pale spots. Apex of elytra triangular, near suture with longer pale, dense pubescence.

Ventral surface of body black, with white pubescence in lateral portions. Legs dark-brown, covered with dark pubescence and bristles.

Differential diagnosis. The new species differs from Chydaeopsis luzonica Heller, 1923 ( Fig. 2 View Fig ) by a different pattern on the elytra: there is no black wide transversal

251

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Cerambycidae

Genus

Chydaeopsis

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