Genus Polyphida Pascoe

Polyphida Pascoe, 1869, Trans. Ent. Soc. Lond., ser 3, 3 : 652 (type-species : P. clytoides Pasc., 1869). - Gahan, 1906b, Fauna British India, Col. 1 : 321. - Aurivillius, 1912, Coleopt. Cat., 39 : 437. - Gressitt & Rondon, 1970, Pac. Ins. Monogr., 24 : 193.

Diagnostic characters : head acutely concave between antennal insertion from side to side especially the ridged antennifer margin, almost flat medianly; eyes very large, oblong, extended from before neck to slightly before gena, prominent and bulging, deeply emarginate dorsally; anterior margin of frontal ocular lobe strongly incised into frons, approximate; antennae longer than body in both sexes; fore coxae globular; its cavity rounded externally and closed posteriorly; mid coxal cavity closed to epimeron externally.

Key to species of Polyphida in Sarawak

1.    Elytra without any pubescent band. ....................................................... 2
Elytra with 4 slivery ashey transverse bands. ......................................... 3

2(l) Elytra metallic bluish green with argentate pubescence; head and prothorax black with slivery-grey pubescence; pronotum impunctate; peduncle of mid and hind femora testaceous; scutellum argentate; antennal segment 7 & 8 testaceous; antennae with sparse whitish pubescence . - modesta  GAHAN, 1906
Elytra blackish metallic green as ground color with very dense auratus     pubescence; pubescence on head and prothorax very dense, auratus;     pronotum punctate beside median glabrous stripe; only peduncle of hind femora testaceous; scutellum auratus; antennal segment 7 - 10 testaceous; antennae with dense auratus pubescence; larger in size and more elongated - auratocrinita sp. nov.

3(l) Elytral apex with a sharp pointing angular spine; gena long; clypeus divided from frons by a A-shaped sulcus; antennal segment 3 twice as long as 4; frons with a median groove; antennae entirely blackish fuscous. - clytoides PASCOE, 1869
Elytra obscurely angulate at angle; gena very short; clypeus and frons not indistinctively separated; antennal segment 3 elongated, 3 X as long as 4; median groove on frons obscure; antennae fuscous, segment 7 & 8 testaceous. - argenteofasciata AURIVILLIUS, 1910

Polyphida modesta GAHAN

Polyphida modesta Gahan, 1906a, J. Fed. Malay States Mus., 1 : 113, pl. 6, fig. 6. - Aurivillius, 1912, Coleopt. Cat., 39 : 437 - Hayashi, 1975, Bull. Osaka Jonan Women's Jr. Coll., 10 : 187, pl. 3, fig. 25.

Head and prothorax black, clothed with dense slivery-ashey pubescence; pubescence on prothorax minute, indistinctive; pronotum with a median longitudinal glabrous glossy blackish stripe not reaching apex or base; antennae fuscous, segment 7 & 8 testaceous; scutellum slivery-white; elytra metallic green, thinly clothed with slivery-ashey pubescence; submedian of each elytron with a denser longitudinal slivery stripe extending from base to behind middle, sometimes tinge with brassy golden; undersurfaces black, thinly covered with ashey-white pubescence; legs pitchy with thin whitish pubescence; base of mid and hind femora testaceous.

Head acutely inclinate between antennal insertion; clypeus and frons not distinctively divided by suture; vertex with several black glabrous spots. Antenna 1/5 longer than body, sparsely fringed ventrally; scape clavate towards apex, carinate latero-dorsally; 3 slender, 3 X as long as 4; 5 twice as long as 4; 6 - 11 gradually shorten. Prothorax cylindrical, 1.5 X as long as wide; apex little narrow than base; side undulating, latero-anterior roundly biemarginate; pronotum impunctate, few punctures on each side. Elytron 5.3 X as long as broad; subparallel with the apex narrowly curved and truncated; angular cusp not very produced; disc with 9 to 10 longitudinal rows of ordinate punctures; punctures finer on sutural half and apex; pubescence on submedian longitudinal stripe diametrically arranged, this being ashey flanked by 2 chalybeate stripes when view at angle from posterior or becoming fuscous flanked by 2 slivery-ashey stripes if view from anterior.

Measurement : Length 8.0 - 11.5 mm; breadth 1.5 - 2.2 mm

Distribution : Sarawak; Peninsular Malaysia (Selangor; Perak).

Material examined : 26 specimens in SM Coll. : Matang Road, Kuching Div., 12.VII.1911; Kuching, Kuching Div., 18.II.1914; Matang Road, Kuching Div., 1.XI.1910; 4th mile Rock Road, Kuching Div., 2.IV.1909; Matang Road, Kuching Div., 1.XII.1915; Matang Road, Kuching Div., 9.XII.1915; Matang Road, Kuching Div., 22.XI.1915; Matang Road, Kuching Div., 11.XI.1909; Matang Road, Kuching Div., 4.V.1910; Matang Road, Kuching Div., 26.V.1915; Matang Road, Kuching Div., 24.VI.1915; Matang Road, Kuching Div., 24.XI.1915; Matang Road, Kuching Div., 10.VIII.1915; Matang Road, Kuching Div., X1.1909; Matang Road, 11.XII.1912; Kuching, Kuching Div., 4.VI.1913; Matang Road, Kuching Div., 11.XI.1909; Matang Road, Kuching Div., 7.VI. 1910; Matang Road, 1.III.1910; Matang Road, Kuching Div., 4.III.1910; Matang Road, Kuching Div., 9.XI.1909; Matang Road, Kuching Div., 11.XI.1909; Mt. Merinjak (2200 ft), 25.V.1914; Matang Road, Kuching Div., 12.XI.1909; Mt. Murud, ulu Baram, Miri Div., XI-XI.1914; Matang Road, Kuching Div., 15.XI.1909; Matang Road, Kuching Div., 14.I.1910; Matang Road, Kuching Div., 1.XI.1909.

Polyphida auratocrinita sp. nov.

Entire body clothed with dense auratus pubescence; head black with dense auratus pubescence on clypeus, frons, vertex and below ocular; aclypeus glossy dark brown; anterior of frons with a small diamond-shaped glabrous median raised area; vertex with many glabrous blackish dots among pubescence; antennae black with dense auratus pubescence; antennal segment 7 - 10 testaceous; prothorax black tinge with dark metallic green; densely clothed with auratus pubescence except for a median glabrous stripe not reaching both apex or base; scutellum auratus; elytra blackish metallic green as ground color with dense auratus pubescence; pubescence along a submedian longitudinal stripe formed a blackish stripe at certain angle, this stripe not reaching to apex; undersurfaces black, densely and uniformly clothed with pale flavo-auratus , short pubescence; legs fuscous; peduncle of hind femora testaceous; apex of tibiae with tawny setae; tarsus castaneous.

Head exserted; mandible long, apical half extended beyond apex of labrum; clypeus broad and long, anterior elongated to 1/2 base of mandible; frons oblique with vertex, same plane as clypeus; deeply concave from side to side between antennal insertion; several piliferous blackish spots below lower ocular; gula transversely rugulo-punctate. Antenna a little longer than body, last segment exceeding elytral apex; scape incrassate, carinate latero-dorsally; 3 twice as long as 4; 5 about 1.5 X as long as 4; 6 - 11 successively shorten. Prothorax cylindrical; longer than broad; apex distinctively narrower than base; anterior and posterior margin with a broad transverse impunctate annular bands, feebly depressed with the side feebly convex near base and bisinuate at latero-anterior; median of pronotum with a glabrous stripe joining both apical and basal depression; central of pronotum and sides with many piliferous punctures. Elytron  7.3 X  as long as broadest part at base; distinctively and obliquely narrower towards apex; subtransversely truncate; angular cusp obscure, not prominent; disc with 9 to 10 longitudinal rows of ordinate punctures, these being finer towards apex; disc very pubescent, pubescence on a submedian longitudinal stripe diametrically arranged so as producing a blackish stripe when view at certain angle. Legs : femora moderately peduncle-fusiform; lateral side of fore and mid femora carinate on the peduncle; hind femora not reaching apex of elytra; first hind tarsal segment subequal to 2+3 united.

Holotype (SM Coll.) Sarawak, date unknown, Mjoberg coll. Length 12.5 mm breath 2.5 mm.

Allotype (SM Coll.) Sarawak, date unknown, Mjoberg coll. Antennae 1/3 longer than body, segment 9 reaching elytral apex; 1/4 tip of hind femora exceeding elytral apex. Length 13.0 mm; breadth 2.5 mm.

Paratypes (SM Coll.) 4 Sarawak, date unknown, Mjoberg coll.; 3 (SM Coll.) 2 ex., Sarawak, date unknown, Mjoberg coll.; Mt. Poi, IV. 1913.

Note :  differ from most species of Polyphida in not having any ashey band on elytral and easily distinguished by the dense auratus pubescence on body.

Polyphida clytoides PASCOE

Polyphida clytoides Pascoe, 1869, Trans. Ent. Soc. Lond., ser 3, 3 : 652, pl. 22, fig. 3. - Aurivillius, 1912, Coleopt. Cat., 39 : 437.

Head and prothorax black with thin ashey pubescence, denser around ocular and vertex; neck with a triangular impubis patch; antennae fuscous; scutellum black; elytra black as ground color, disc with 4 slivery-ashey transverse band; undersurfaces clothed with a very dense silky slivery adpressed pubescence; logs black, pubescence whitish.

Head exserted; gena constricted below eyes; clypeus and frons separated by a A-shaped sulcus; the latter with a median groove extended to vertex. Antenna scape carinate dorsally; segment 3 twice as long as 4; 5 - 7 subequal, 2 X as long as 4 (8 - 11 missing). Prothorax longer than broad; elongated cylindrical; apex with a broad transverse depression not up to constriction; pronotum impunctate, smooth except for a thin layer of indistinctive pubescence; sides undulating, otherwise parallel. Elytron 6 X as long as broad; glossy black as ground color; transverse band made of slivery-ashey pubescence; 1st band basal; 2nd from scutellum, obliquely excurved at 2/9 from base, expanded below lateral deflexion and reaching external margin; 3rd triangular, anterior border oblique and reaching to suture at 1/3 from base, posterior border transverse at 4/9 from apex; 4th apical; area between base and 3rd band coarsely punctate in ordinate longitudinal rows; surfaces between 3rd and 4th with greyish shade, finely and sparsely punctulate; side parallel, gradually curved and narrow behind 3rd band; apex truncate with a sharp acicular angular spine. Legs : femora peduncle-fusiform; clavated portion more oblong-elliptical; peduncle of mid and hind femora carinate.

Measurement : Length 14.0 mm; breadth 3.0 mm

Distribution : Sarawak

Material examined : 1 specimen in SM Coll. : Mt. Merinjak (2200 ft), 29.V. 1914.

Polyphida argenteofasciata AURIVILLIUS

Polyphida argenteofasciata Auriv., 1910, Arkiv. Zool., 7 (3): 21.; Aurivillius, 1912, Coleopt. Cat., 39 : 437.

Head black, densely covered with slivery pubescence; antennae brownish, segment 7 & 8 testaceous; prothorax black with alternating of slivery and blackish transverse bands; slivery pubescence on basal constriction denser followed by a broad blackish sub- pubescent band reaching to middle; in front of this another slivery band but less pubescent as former or more of a slivery shade; anterior margin with a sub-pubescent blackish band half the width of the one behind middle; scutellum slivery white; elytra black as ground color; disc with 4 silvery-ashey transverse bands; undersurfaces black, velutineous pubescence slivery-white; legs fusco-castaneous with dense slivery-white pubescence.

Head constricted behind eyes; very pubescent on frons, vertex, around ocular and temple; dorsal and ventral of ocular margin horizontal, parallel to each other; gula as long as broad owing to the elongated eye, transversely rugose. Antenna longer than body, scape cylindrical, closely punctate; 3 longest, 3 X as long as 4; remaining segment almost subequal. Prothorax narrower than head or elytra; base very feebly constricted; side convex; disc thinly and evenly covered with very fine micropubescence; pronotum impunctate, flat. Scutellum parallel sided; apex rounded. Elytron 5.3 X as long as broad; side parallel, gradually narrow from slightly before 1/5 from apex and truncate; angular cusp not pointed; disc with 4 slivery bands; 1st basal, indistinctive, more of a slivery shade; 2nd from scutellum along suture, obliquely excurved at 1/5 from base; 3rd at middle, anterior border oblique, posterior border transverse, forming an equidistant triangular with the other elytron; 4th apical; planate at sutural half, convex at marginal half; disc with 8 to 10 longitudinal rows of ordinate punctures, coarser between base and 3rd transverse band. Legs : femora peduncle-clavate.

Measurement : Length 7.5 - 8.5 mm; breadth 1.5 - 2.0 mm

Distribution : Sarawak

Material examined : Matang Road, Kuching Div., 29.X.1915; Matang Road, Kuching Div., 29.X.1910; Kuching, Kuching Div., 18.II.1914.