Baeocera ceylonensis (Lobl, 1971)

Löbl, Ivan, 2012, On the Scaphisomatini (Coleoptera: Staphylinidae: Scaphidiinae) of the Philippines, III: the genus Baeocera Erichson, Revue suisse de Zoologie 119 (3), pp. 351-383 : 376-377

Baeocera ceylonensis group

Baeocera dilutior Löbl, 1979 Fig 59-62 Eubaeocera diluta Löbl, 1972: 85 ; holotype Ƌ, ZMUB, type locality: LUZON, Prov. Nueva

Vizcaya, Bambang.

FIGS 59-62

(59-62) Baeocera dilutior Löbl , aedeagus (59, 62) in dorsal and lateral views, paramere (60) and internal sac (61) in dorsal view; scale bar = 0.1 mm for aedeagus, = 0.05 mm for paramere and internal sac.

Baeocera dilutior Löbl, 1979: 86 , replacement name for Eubaeocera diluta Löbl, 1971 (nec

Baeocera diluta Achard, 1920 ).

MATERIAL EXAMINED: 8 ex., LEYTE, Visca N Baybay, prim. forest 200-500m, 22.II.- 10.III.1991, leg. W. Schawaller & al. ( SMNS, MHNG) . – 1 ex., Visca N Baybay , 100-200m, 22.II.1991, leg. W. Schawaller & al., ( SMNS) . – 1 ex. Leyte, SW Abuyog, 8.III.1991, forest, 100-300m, leg. W. Schawaller & al. ( MHNG) . – 5 ex., LUZON, Lagunas Prov., Mt. Makiling , summit road, 450-550m, 20.XI.1995, leg. I. Löbl and 1 ex. with the same data but 400m, 19.XI.1995 ( MHNG) . – 1 ex., Lagunas Prov., Mt. Makiling 4 km SE Los Banos, 8.IV. 1977, leg. L. Watrous ( MHNG) . – 2 ex., Lagunas Prov., Mt. Makiling above Mad Springs 400-700m, 19.- 22.XI.1995, leg. J. Kodada ( MHNG) . – 2 ex., Lagunas Prov., Mt. Banahaw above Kinabuhayan , 500 and 800m, 24. and 25.XI.95, leg. I. Löbl ( MHNG) . – 2 ex., Lagunas Prov., Mt. Banahaw above Kinabuhayan , Cristalino trail, 600-700m, 24.XI.95, leg. I. Löbl ( MHNG) . – 1 ex., Lagunas Prov., Mt. Banahaw near school above Kinabuhayan , 600m, 26.XI.1995, leg. J. Kodada ( MHNG) .

HABITAT: Specimens were found in primary and secondary rainforest, in leaf litter and under rotten bamboo debris.

DISTRIBUTION: Philippines, Leyte, Luzon.

COMMENTS: This species is difficult to distinguish by the external characters from B. jankodadai , B. insolita and B. jeani , while it is separated unambiguously from these species, as from other Philippine congener, by the aedeagal characters, in particular by the presence of a tuft of spine-like structures situated in the proximal part of the internal sac (Figs 59-62). All species of the B. ceylonensis group are similar in both, external and aedeagal characters. Baeocera dilutior differs clearly from the Taiwanese B. semiglobosa (Achard, 1921) by the distally narrowed flagellar guide-sclerite and proximally parallel flagellar sclerite of the internal sac of the aedeagus. Baeocera dilutior may be separated from B. franzi (Löbl, 1973) , known from Thailand and China, by the elytral punctation restricted onto smaller surface of the disc, and by the internal sac with patch of apico-lateral scale-like structures, while the latter consists of denticulate structures in B. franzi . Baeocera ceylonensis (Löbl, 1971) , known from Sri Lanka and southern India, and B. ventralis (Löbl, 1973) , distributed from Pakistan to Thailand, have the parameral notch situated more proximally than in B. dilutior . In addition, the sclerites of the internal sac are smaller in B. ceylonensis than those in B. dilutior , and B. ventralis has the apex of the flagellar guide-sclerite broadly rounded.