Leucopholis, Dejean, 1833

Calcetas, Orlando A., 2023, Three new species of the genus Leucopholis Dejean, 1833 (Coleoptera, Scarabaeidae, Melolonthinae, Leucopholini) from the Philippines and designation of a neotype for L. semperi Brenske, 1896, European Journal of Taxonomy 890, pp. 184-203 : 199-200

Key to the species of Leucopholis of the Philippines

1. Metaventral process distinctly long, extending in front of prosternal process ( Fig. 2 ); large to very large sized species, length 35.0– 42.5 mm; prosternal process mound-shaped, triangulate; pronotal scales variable in shape and size; body scales elongate ovoid, not flattened, slanted at 45° angle, base of scale only attached to surface ....................................................................................................... 2

– Metaventral process distinctly short not extending in front of prosternal process; moderate to small sized species, length 22.5–29.5 mm; prosternal process ovoid to spindle-shaped anteriorly; pronotal scales nearly uniform in shape and size; body scales distinctly ovoid, flattened, not slanted at 45° angle, entire scale strongly attached to surface ................................................................................ 5

2. Metaventral process lanceolate, constricted subapically ( Fig. 2 ); abdomen covered mostly with elongate ovoid scales; length 35.0 mm ................................................................. L. stainesi sp. nov.

– Metaventral process not lanceolate, not constricted subapically ( Figs 8 , 15 , 18 ); abdomen covered mostly with short ovoid scales .......................................................................................................... 3

3. Paramere apical process of male genitalia not distinctly elongate; bird bill-like; apical process of male genitalia tapered or rounded apically ( Figs 5–6 , 13–14 ) .................................................................. 4

– Paramere apical process of male genitalia distinctly elongate; not bird bill-like; apical process of male genitalia spatulate apically ( Figs 19–20 ); length 42.5 mm .................................. L. ratcliffei sp. nov.

4. Paramere apical process of male genitalia tapered apically; paramere basal margin of male genitalia sinuate; paramere lateral margin of male genitalia surface rugose ( Figs 9–10 ); medial posterior margin of pronotum slightly extended posteriorly; posterolateral margin of elytron near posterior angle distinctly infleXed laterally; pygidium with vertical flattened margin subposteriorly; length 38.2 mm ................................................................................................................. L. bezdeki sp. nov.

– Paramere apical process of male genitalia rounded apically; paramere basal margin of male genitalia bisinuate; paramere lateral margin of male genitalia surface rugose ( Figs 13–14 ); medial posterior margin of pronotum distinctly extended posteriorly; posterolateral margin of elytron near posterior angle vertically flattened laterally; pygidium without vertical flattened margin subposteriorly, with sloping downward margin. length 36.0 mm .............................................. L. semperi Brenske, 1896

5. Scales on elytra nearly uniform in size ............................................................................................. 6

– Scales on elytra variable in size; length 23.5–29.5 mm ................ L. pulverulenta Burmeister, 1855

6. Clypeus without medial cleft ............................................................................................................ 7

– Clypeus with medial cleft ................................................................................................................. 8

7. Clypeus strongly convex in males, weakly convex in females, wider than labrum in males, narrow in females; length 28.5–32.5 mm ................................................................... L. reflexa Moser, 1924

– Clypeus weakly convex in males, strongly convex in females, nearly as wide as labrum in both sex; length 22.5–25.1 mm ....................................................................................... L. bakeri Moser, 1924

8. Protibial spur long, extending beyond anterior angle of protibia; length 25.5–30 mm ...................... ................................................................................................................. L. irrorata Chevrolat, 1841

– Protibial spur distinctly shorter, not extending beyond anterior angle of protibia; length 21– 22.5 mm ................................................................................ L. guevarai Calcetas & Adorada, 2017

Figures

Fig. 1–3. Leucopholis stainesi sp. nov., holotype, ♂ (PNM). 1. Habitus, dorsal aspect. 2. Metaventral process, dorsal aspect. 3. Elytron, anterior margin and anterior angle.

Fig. 7–10. Leucopholis bezdeki sp. nov., holotype, ♂ (PNM). 7. Habitus, dorsal aspect. 8. Metaventral process, dorsal aspect. 9. Male genitalia, dorsal aspect. 10. Male genitalia, lateral aspect.

Fig. 15–16. Leucopholis semperi Brenske, 1896. 15. Neotype, ♂ (MNHN), metaventral process, dorsal aspect. 16. Nontypes, ♀♀, dorsal aspect (photograph of Brenske’s non-type series from ZMHB courtesy of Dr Joachim Willers).

Fig. 17–20. Leucopholis ratcliffei sp. nov., holotype, ♂ (UNSM). 17. Habitus, dorsal aspect.18. Metaventral process, dorsal aspect. 19. Male genitalia, dorsal aspect. 20. Male genitalia, lateral aspect.

Fig. 4–6. Leucopholis stainesi sp. nov., holotype, ♂ (PNM). 4. Elytron, dorsal aspect. 5. Male genitalia, dorsal aspect. 6. Male genitalia, lateral aspect.

Fig. 11–14. Leucopholis semperi Brenske, 1896, neotype, ♂ (MNHN). 11. Habitus, dorsal aspect. 12. Metaventral process, dorsal aspect. 13. Male genitalia, dorsal aspect. 14. Male genitalia, lateral aspect.