Cyphochilus carinchebanus Brenske, 1903

Sabatinelli, Guido, 2020, Taxonomic notes on the genus Cyphochilus Waterhouse, 1867 (Coleoptera, Scarabaeoidea, Melolonthinae) with description of 10 new species, Revue suisse de Zoologie 127 (1), pp. 157-181 : 168-170

Cyphochilus carinchebanus Brenske, 1903

Figs 47-49 , 82

Cyphochilus carinchebanus Brenske, 1903: 381

Type material examined: holotype: ZMHB; 1 ♀; Carin Cheba , 800-1100 m, L. Fea V XII-88.

Material examined: 10 specimens.

MYANMAR: ZMHB; 1 ♂; Carin Cheba , 800-1100 m, L. Fea V XII-88; ( Fig. 82 ).

THAILAND: MHNG; 2 ♂, 7 ♀; North Thailand, Chiang Rai, Wiang Pa Pao ; 3.III.1988; leg. F. Ferrero.

Description of male specimen in ZMHB: Size – BL: 18.2 mm, BW: 7.1 mm, BWX: 9.3 mm, situated at midpoint of elytra. Color – Integument brown with legs, antenna and other appendices light brown; surface with white scales densely aggregated along the sides of pronotum and margins of elytra. Head – CW/L: 3.2; clypeus largely rounded (F/O: 4.9) with lateral margins divergent posteriad; antennal club much longer than antennomeres 2-7 (A2-7/CL: 0.7). Pronotum – (PnW/L: 2.2); apical angles and lateral margins flattened; apical angles right and slightly protuberant; basal lateral margins straight, basal angles obtuse. Elytra – Without any visible striae. Thoracic sterna – Surface with short, white pubescence and scales; mesosternum feebly developed (MstL: 0.35 mm) however visible in lateral view between the mesocoxae. Abdomen – Sternites with uniformly sparse scales; pygidium convex with the apical margin narrowly reflected. Legs – Protibia tridentate with the basal tooth well developed; slender apical tooth as long as the middle tooth. Aedeagus – Parameres slightly asymmetric with two long appendices in addition to the terminal part of parameres ( Figs 47-49 ).

Variability: BL: 16.5-18.5 mm.

Females: Relatively larger than males (7.4-7.6 mm); antennal club ovate, much shorter than preceding antennomeres 2-7 (A2-7/CL: 2).

Type locality: The type locality Carin Cheba corresponds nowadays to Karen Hills (750 m altitude) in Myanmar.

Distribution: The species was described from Karen Hills in Myanmar, one of the main hill ranges in eastern Burma located across the SW corner of Shan State and Kayah State; is also known from the southwestern most district of Chiang Rai Province in northern Thailand.

Remarks: This is a small Cyphochilus species and can be readily separated from all other congeners by the unique form of the parameres. Unfortunately, Brenske described this species from a female specimen, however, comparison of recently collected specimens with the type, leave no doubt they are conspecific.

Figures

Figs 47-58. Parameres in right, dorsal, and left view. (47-49) Cyphochilus carinchebanus Brenske, 1903. (50-52) C. obscurus Sharp, 1876, holotype. (53-55) C. proximus Sharp, 1876, holotype. (56-58) C. tricolor Waterhouse, 1867, lectotype. – Scale bars = 1 mm.

Figs 80-91. Habitus. (80) Cyphochilus candidus (Olivier, 1789), lectotype ♂ MNHN. (81) C. candidus (Olivier, 1789), Nepal: Godavari, ♂ MHNG, yellow scales aberration. (82) C. carinchebanus Brenske, 1903, Myanmar: Carin Cheba, ♂ ZMHB. (83) C. feae Brenske, 1903, holotype ZMHB. (84) C. gandhii n. sp., holotype MHNG. (85) C. leducthoi n. sp., holotype MHNG.(86) C. septentrionalis Waterhouse, 1867, lectotype BMNH. (87) C. obscurus Sharp, 1876, holotype MNHN. (88) C. sansuukyii n. sp., paratype ♀ MHNG. (89) C. peninsularis Arrow, 1938, paralectotype ♂ MHNG. (90) C. rohingyae n. sp., holotype MHNG. (91) C. rohingyae n. sp., paratype ♂ MHNG, Malaysia: Perak, bicolor aberration. – Scale bars = 5 mm.