Baeocera profana, Löbl & Ch-, 2012

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 : 357-359

Baeocera profana sp. nov. Figs 10-13

HOLOTYPE: Ƌ, LUZON, Mountain Prov. , Sagada, 15-19.XII.1979, leg. L. Deharveng & J. Orousset #49 ( MHNG).

PARATYPES: 1 Ƌ, LUZON, Mountain Prov. N & NE of Sagada 15-19.XII.1979, leg. L. Deharveng & J. Orousset #68. – 2 Ƌ with the same data but #39 . – 1 ♀, with the same data but #43. – 1 Ƌ with the same data but #49. – 1 Ƌ, with the same data but # 50 . – 1 ♀, with the same data but #51 . – 1 ♀, with the same data but #53 . – 1 ♀ with the same data but #55. – 1 Ƌ with the same data but #143 (all MHNG) .

DESCRIPTION: Length 1.40-1.55 mm, width 0.95-1.05 mm. Body, femora and tibiae uniformly reddish-brown to blackish, apex of abdomen, antennae and tarsi lighter than body. Body moderately convex dorsally. Eyes large. Length ratio of antennomeres as: III 7: VI 10: V 13: VI 11: VII 15: VIII 11: IX 13: X 13: XI 15. Antennomeres III to V almost evenly narrow, VI slightly wider than V; VII moderately wide, about 4 times as long as wide; VIII about as wide as VI, about 4 times as long as wide; IX to XI distinctly wider than VII, XI about 2.5 times as long as wide. Pronotum and elytra without microsculpture, with lateral contours almost continuously arcuate; pubescence visible at 50 times magnification. Pronotum very finely punctate, with lateral margins strongly convex, lateral margin carinae concealed in dorsal view. Scutellum concealed. Elytra not covering apex of abdomen. Elytron with sutural stria fairly deep, curved at base to form basal stria joined with lateral stria, adsutural area flat or slightly raised. Elytral punctation similar to pronotal punctation on humeral area and along lateral margin; remaining surface fairly coarsely punctate, with puncture intervals about as large to 3 times as large as puncture diameters. Hind wings reduced. Hypomera impunctate. Mesepimera flat, about 2.5 to 3 times as long as wide and about 3 times as long as interval to mesocoxa. Metaventrite somewhat convex in middle, with centre impunctate, around centre distinctly punctate. Lateral parts of metaventrite impunctate in front of metacoxa, coarsely punctate on remaining surface; some coarse punctures about as large as or larger than puncture intervals. Submesocoxal lines parallel or somewhat arcuate, with very coarse marginal punctures extended along anapleural suture. Submesocoxal area about 0.03 to 0.04 mm long, shortest interval between its margin and metacoxa about 0.09-0.10 mm. Metanepisterna flat, 0.08- 0.10 mm wide, weekly narrowed anteriad, with coarsely punctate suture. Metepimera striate along inner margin. Abdominal ventrite 1 lacking microsculpture, with basal punctures coarse and slightly elongate, interrupted in middle and extended to lateral margins. Punctation very fine on entire mesal area and along apical margin up to lateral margins, distinct and irregular on lateral surface posterior basal punctures row. Tibiae slightly curved.

Male characters: Tarsomeres 1 to 3 of forelegs barely widened. Aedeagus as in Figs 10-13, 0.36-0.38 mm long. Median lobe moderately sclerotized.

HABITAT: The specimens were in samples of soil, humus, sieved litter, and moss on trunks.

DISTRIBUTION: Philippines, Luzon.

ETYMOLOGY: The species epithet is a Latin adjective meaning common.

COMMENTS: This species may be readily distinguished from other Philippine members of the B. serendibensis group by its punctation pattern. It shares with B. bicolorata Löbl reduced hind wings and comparatively short metaventrite, but it may be easily separated from latter by the larger body, much longer antennae that are similar to and still longer than those in B. procerula , and much coarser elytral punctation covering almost entire disc. The elytral punctation is similar in the widely distributed B. serendibensis (Löbl) and in the Taiwanese B. sauteri Löbl. These two species have, however, fully developed hind wings and comparatively longer metaventrite. Baeocera serendibensis may be distinguished also by the mesal part of abdominal ventrite 1 distinctly punctate.

Baeocera simoni (Pic) Figs 14-16 Scaphosoma simoni Pic, 1920: 5 ; holotype ♀, MNHN; type locality: LUZON, Antipolo .

Eubaeocera simoni ; Löbl, 1971a: 248.

MATERIAL EXAMINED: 2 Ƌ, LUZON, Lagunas Prov., Mt. Banahaw above Kinabuhayan, 800m, 26.XI.95, leg. I. Löbl for. litter. – 1 Ƌ, Lagunas Prov., Mt. Banahaw above Kinabuhayan, 600m, 24.XI.95, leg. I. Löbl, degraded rainforest, fungi on log. – 1 Ƌ, 1 ♀, Lagunas Prov., Mt. Banahaw ca 1 km Kinabuhayan, 500m, 26.XI.95, leg. I. Löbl, litter degr. forest. – 1 Ƌ, Lagunas Prov., Mt. Makiling, 450-550 m, 20.XI.1995, leg. I. Löbl, leaf litter. – 1 Ƌ, Lagunas Prov., Mt. Makiling above Mad Springs, 400-700m, 19.-22.XI.1995, leg. J. Kodada (all MHNG).

COMMENTS: This species was previously known only by the female holotype, and it was redescribed by Löbl, 1972. The basal wrinkles of the first abdominal ventrite are variably long, always distinct. The aedeagus is illustrated for the first time in the present paper.

REDESCRIPTION: Length 1.15-1.32 mm, width 0.80-0.95 mm. Body, femora and tibiae uniformly reddish-brown, apex of abdomen, antennae and tarsi lighter. Body moderately convex dorsally. Eyes fairly large. Length ratio of antennomeres as: III 6: VI 8: V 10: VI 10: VII 11: VIII 8: IX 10: X 11: XI 12. Antennomeres III and IV almost evenly narrow; V and VI almost even, each slightly wider than IV; VII moderately wide, about 3.5 times as long as wide; VIII distinctly wider than VI, slightly narrower than VII, about 3 times as long as wide; IX to XI distinctly wider than VII, XI about 2.5 times as long as wide. Pronotum and elytra without microsculpture, with lateral contours separately arcuate; pubescence visible at 50 times magnification. Pronotum very finely punctate, with lateral margins strongly convex, lateral margin carinae concealed in dorsal view. Scutellum concealed. Elytra not covering apex of abdomen, with lateral carinae concealed or shortly exposed near base. Elytron with sutural stria fairly deep, curved at base to form basal stria joined with lateral stria, adsutural area flat. Elytral punctation almost evanescent or very fine and similar to pronotal punctation on areas along base, sutural stria, lateral margin, and on apical third to half of discal surface; remaining surface fairly finely punctate, with puncture intervals about 2 to 3 times as large as puncture diameters. Hind wings not reduced. Hypomera impunctate. Mesepimera flat, about 2.5 times as long as wide and about twice as long as interval to mesocoxa. Metaventrite somewhat convex in middle, with centre impunctate, around centre distinctly punctate. Lateral parts of metaventrite impunctate on large basal area, rather coarsely punctate on remaining surface; coarse puncture about as large as, or smaller than, puncture intervals. Submesocoxal lines somewhat arcuate, with fairly coarse marginal punctures extended along anapleural suture. Submesocoxal area about 0.03-0.04 mm long, shortest interval between its margin and metacoxa about 0.10 mm. Metanepisterna flat, 0.04-0.07 mm wide, weekly narrowed anteriad, with distinct, punctate suture. Metepimera deeply sulcate. Abdominal ventrite 1 lacking microsculpture, with basal puncture row not or barely interrupted in middle and extended to lateral margin, consisting of fairly coarse and elongate punctures. Punctation posterior basal puncture row very fine, few additional distinct puncture sometimes present. Tibiae straight.

Male characters: Tarsomeres 1 to 3 of forelegs barely widened. Aedeagus as in

Figs 14-16, 0.32-0.38 mm long. Median lobe moderately sclerotized.

HABITAT: Specimen were found in sieved leaf and other forest floor debris and in moos on logs, in degraded rainforests, an altitudes ranging from 400 to 800m above s. l.

DISTRIBUTION: Philippines, Luzon.

COMMENTS: This species is a member of the B. serendibensis group. In addition to the distinguish characters given in the key above, it may be separated from B. palawana (Löbl) and B. brunnea (Löbl) by the smaller size of the body, and by the aedeagus with angulate ventral wall of the median lobe, at base of the apical process (seen in lateral view).