Ceresium huedepohli mindanao, Yokoi, 2023

Yokoi, Yaheita, 2023, Note on genitalia and taxonomy of the Callidiopini from the Philippines, with description of six new species and two subspecies (Coleoptera, Cerambycidae, Cerambycinae), Contributions to Entomology 73 (1), pp. 31-66 : 31

Ceresium huedepohli mindanao subsp. nov.

Figs 5A-G , 20A-J

Ceresium huedepohli Yokoi, 2019: 23. Type locality: "Espana, Sibuyan Is., Romblon, Philippines".

Type material.

Holotype ♂ (SMF): "Phil I., Mindanao"; "Kidapawan S."; "Cotabato I-2015". (former CJC).

Etymology.

The name of this subspecies refers to its distribution.

Measurements.

Holotype ♂: TL = 8.8 mm; EL/TL = 0.70; EL/EW = 3.13; HW/PW = 1.04; PL/PW = 1.17; PA/PW = 0.62; PB/PW = 0.80.

Comparative description of male genitalia

(Figs 5F, G , 20A-J ). Median lobe and tegmen similar to those of the nominotypical Ceresium huedepohli Yokoi. Apical process of endophallus as Figs 5G , 20D-F ; broader in dorsal view; in profile even more strongly curved downward; apical sclerite projected forward in sub-sagitiform, instead of dehiscent. 8th sternite deeply in V-form emarginated on apex, instead of thinned in the apical middle.

Distribution.

Mindanao, Philippines.

Comparative notes.

This subspecies differs from the nominotype in a few external characteristics. Its elytra are longer with EL/TL = 0.70, while antennae are shorter. The differences in male genitalia are more evident. Even though they are basically of similar design, a few essential deviations can be identified as above. The new subspecies, from Mindanao, is geographically separated from the nominotype from Sibuyan Island.

Figures

Figure 5. A-G. Ceresium huedepohli mindanao subsp. nov. Holotype male. A. Habitus, dorsal view; B. Ditto, ventral; C. Head and pronotum; D. Ditto, latero-dorsal view; E. Prosternum and mesoventrite; F. Endophallus, part, surface; G. Endophallus with apical process.

Figure 20. A-J. Ceresium huedepohli mindanao subsp. nov. Holotype male. Genitalia. A. Median lobe with endophallus, dorsal view; B. Ditto, lateral; C. Ditto, ventral; D. Endophallus, apical process, dorsal view; E. Ditto, lateral; F. Ditto, ventral; G. Tegmen, dorsal view; H. Ditto, lateral; I. Ditto, ventral; J. 8 th sternite, with 8 th tergite in the background, ventral view. Scale bars: 0.5 mm (D-F); 1 mm (A-C, G-J).