Scaphisoma inopportunum, Ivan Löbl & Ryo Ogawa, 2016

Ivan Löbl & Ryo Ogawa, 2016, On the Scaphisomatini (Coleoptera, Staphylinidae, Scaphidiinae) of the Philippines, IV: the genera Sapitia ACHARD and Scaphisoma LEACH, Linzer biologische Beiträge 48 (2), pp. 1339-1492 : 1392-1393

publication ID

https://doi.org/ 10.5281/zenodo.247206

DOI

https://doi.org/10.5281/zenodo.4390782

persistent identifier

https://treatment.plazi.org/id/0C70F70C-D73A-FF94-FF7B-A98FDFC94041

treatment provided by

Plazi (2017-01-16 12:52:10, last updated 2024-11-25 22:56:07)

scientific name

Scaphisoma inopportunum
status

sp. nov.

5.2.13.7. Scaphisoma inopportunum View in CoL nov.sp. ( Figs 16 View Figs 14 - 21 , 127, 128 View Figs 126 - 130 )

T y p e m a t e r i a l: Holotype 6: Luzon: Lagunas Mt. Banahaw, ca 1 km from Kinabuhayan, 500m, 25.XI.1995, I.Löbl, fungi on logs, under bark, degr. rainforest (MHNG). Paratypes: with the same data as the holotype, 4 66, 5 ♀♀ (MHNG, BZLA); same but above Kinabuhayan, 600-700 m, 24.XI.1995, 1 6, 2♀♀ (MHNG); Luzon, Lagunas, Mt. Makiling, 4 km S Los Banos, 7.V.1977, leg. L.E. Watrous, 3 ex., and with the same data but 11.IV.1977, 1 6, 1♀ (MHNG); Luzon, Los Banos / 1924, 1 6 (SMTD); Luzon, Lagunas Mt. Makiling, summit road 600 m, 21-22.XI.1995, leg. I. Löbl, 1♀ (MHNG); Luzon, Lagunas Mt. Makiling, 430 m, 17- 18.VI.1977, leg. M. Satô, 3♀♀ (EUMJ).

Description: Length 1.45-1.70 mm, width 1.05-1.23 mm. Head and body reddish-brown to blackish, mesoventrite and metaventrite often darkened, femora and tibiae reddish-brown, lighter than body, tarsi and antennae yellowish. Pronotum and elytra not microsculptured and not iridescent. Length/width ratio of antennomeres as: III 12/8: IV 16/6: V 23/8: VI 38/9: VII 48/15: VIII 32/10: IX 45/14: X 39/14: XI 48/16. Pronotum with punctation very fine, lateral margins evenly rounded, lateral margin carinae not visible in dorsal view, lateral striae very finely punctate. Exposed tip of scutellum minute. Elytra convex, with lateral margin carinae usually exposed in dorsal view, apical margins truncate, inner apical angles not prominent, situated posterior level of outer angles; sutural margin not raised, sutural striae fairly deep, shortly bent at base, not extended along basal margins, parallel posteriad, very finely punctate; adsutural areas narrow, flat, each with single puncture row, lateral striae impunctate. Elytral disc with punctation fine, well visible, punctures usually somewhat larger than those on pronotum. Hind wings fully developed. Hypomera and mesanepisterna smooth. Mesepimera shorter than intervals to mesocoxae, about three times as long as wide. Metaventrite not microsculptured, very finely and sparsely punctate. Median part of metaventrite convex, without stria or impressions; antecoxal puncture rows absent. Submesocoxal areas 0.04 mm, about as thirds of intervals to metacoxae, submesocoxal lines convex, coarsely punctate, punctures not extended by striae. Metanepisternum hardly convex, slightly narrowed anteriad, inner margin rounded at angles, almost straight in-between, impressed, suture deep. Tibiae straight. Abdomen with sternite 1 lacking microsculpture, very finely punctate, submetacoxal areas 0.02 mm, about as eighth of intervals to apical margin of sternite, submetacoxal lines parallel, coarsely punctate. Following sternites with punctulate microsculpture.

M a l e: Protarsomeres and mesotarsomeres 1 to 3 slightly widened. Aedeagus ( Figs 127, 128 View Figs 126 - 130 ) 0.32-0.37 mm long, asymmetrical, weakly sclerotized. Basal bulb oval, with inconspicuous articular process. Apical process inflexed, arcuate, gradually narrowed, with acute tip. Parameres strongly asymmetrical. Left parameres wide in basal part, abruptly in middle and irregularly curved, very narrow in apical section. Right paramere shorter than left parameres, evenly wide, bent and with truncate apex in dorsal view, irregularly curved and widened posterior mid-length in lateral view. Internal sac simple, with thin flagellum.

E t y m o l o g y: The species epithet is a Latin adjective meaning inopportune. Comparative notes. This species shares most diagnostic characters with S. palawanum and S. oviforme described below. It may be distinguished by its aedeagal features, in particular by the shape of the parameres.

Gallery Image

Figs 14 - 21: Habitus of Scaphisoma; (14), S. furcillatum nov. sp.; (15), S. inopportunum nov. sp.; (16), S. lunabianum nov. sp.; (17), S. inexspectatum nov. sp.; (18), S. luteomaculatum PIC; (19), S. luteopygidiale (PIC); (20), S. maculosum nov. sp.; (21), S. mindanaosum PIC. Scale: 1.0 mm.

Gallery Image

Figs 126 - 130: Aedeagi of Scaphisoma; (126), S. inconventum nov. sp., in lateral view; (127, 128), S. inopportunum nov. sp., in dorsal and lateral views; (129, 130) S. oviforme nov. sp., in dorsal and lateral views. Scale = 0.1 mm.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

SubFamily

Scaphidiinae

Tribe

Scaphisomatini

Genus

Scaphisoma