Tetralonioidella hoozana Strand, 1914

Dubitzky, Andreas, 2007, Revision of the Habropoda and Tetralonioidella species of Taiwan with comments on their host-parasitoid relationships (Hymenoptera: Apoidea: Apidae), Zootaxa 1483 (1), pp. 41-68 : 61-62

Tetralonioidella hoozana Strand, 1914

( Figs 6C , 7C, D, 8B)

Tetralonioidella ( Tetralonia ?) hoozana Strand, 1914: 139–141 . Type locality: Hoozan (Fengshan today), Formosa. Type, ♂ (DEI, examined).

Male. BL: 12.7–13.6 mm (13.2 mm). FWL: 9.2–9.4 mm (9.3 mm).

Structure. Head about 1.4 times broader than long. Face trapezoid, space between compound eyes dorsally broader than ventrally. Proboscis in repose reaching front margin of foretrochanter. Galea shiny, with dense, small punctation. Labrum shiny, about 1.5 times broader than long, with dense punctation of large punctures. Apical margin of labrum convex, with broad incision in the middle. Clypeus shiny, with dense, honeycombed punctation. SCA distinctly keeled in the middle. Other parts of head shiny to dull, lateral parts of vertex and frons with irregular punctation. Antenna rather short, reaching front margin of tegulae ( Fig. 6C ). Scape with dense punctation ventrally, about as long as following three AS together. AS 3 slightly longer than broad. AS 4 short, nearly 1.5 times longer than broad, distinctly longer than AS 3 and about 1.4 times longer than AS 5 in ventral view. Following AS about as long as broad except AS 13 is about 1.9 times as long as broad. AS 5– AS 12 weakly concave along posterior margin, distally only slightly convex, not distinctly nodiform dorsally ( Fig. 6C ). Mesoscutum smooth and shiny, with large and dense punctation. Scutellum weakly shiny, with dense, honeycombed punctation, no median keel developed. Posterior margin of scutellum with broad incision in the middle. Scutellar spines short, truncate, barely visible between pubescence. Mesepisternum smooth and shiny, with large and dense punctation. Fore and hind wing distinctly papillate distally. Femur and tibia of middle and hind leg thickened. Inner spur of hind tibia straight, distinctly longer than outer spur. Basitarsus of hind leg ventrally flattened, without groove, therefore straight in profile. All T distinctly tesselate, dull to weakly shiny, with inconspicuous, small and dense punctation. Apical margin of T1–T6 straight to slightly convex in the middle. T7 with a triangular, apically pointed incision. S1–S5 weakly tesselate, shiny, with small punctation that is most dense basally. Apical margins of S convex (S1) to straight (S2) respectively slightly concave (S3–S5) in the middle. S6 triangular, with small dense punctation. S7 as in Fig. 7C, apically rounded. S8 as in Fig. 7D, apically truncate.

Integument colour. Colour of body mostly black. Proboscis brown, mandible reddish brown in the middle. AS 3– AS 13 yellowish to reddish brown beneath, dark brown dorsally. Tarsus blackish brown (basitarsus) to yellowish brown (distitarsus). Tegula amber, transparent. Apical 2/3 of T1–T6 bright amber, transparent in contrast to the black basal third, all T therefore conspicuously banded. T1–T6 mostly apically with distinct metallic gloss (difficult to see between dense pubescence). S1–S2 yellowish brown, S2 with large, blackish brown maculations laterally. Other S blackish brown basally to dark brown transparent apically.

Pubescence. Mandible with few, long grey hairs along ventral margin and short grey hairs basally. Labrum and clypeus with short grey pubescence of feathery hairs, intermixed with long, branched hairs. POA as well as SCA with dense, short pubescence of grey, feathery hairs, on POA intermixed with long yellowish grey hairs. Frons as well as vertex with long, bright yellowish brown pubescence of feathery hairs, area around ocelli with short, branched yellow hairs. GA with short branched hairs along hind margin of compound eye, becoming longer to occiput. Pubescence of thorax fox-red to yellowish orange of long, branched hairs. Lateral parts of thorax with yellowish grey to grey, long, branched hairs. All T with dense fox-red pubescence of short feathery hairs, which are most dense on lateral parts of T1 and apical parts of T2–T6, forming apical hair bands which emphasize the banding of integument colour on the latter. All S with inconspicuous, short to medium long yellowish grey, transparent pubescence. S7 (Fig. 7C) with thin hairs on ventral surface along apical margin. S8 (Fig. 7D) bare.

Male genitalia. As illustrated in Fig. 8B .

Female. BL: 12.0 mm. FWL: 9.2 mm.

Structure. Head oval, as in male about 1.4 times broader than long. Face same as male, distinctly trapezoid. Proboscis and mandibles same as in male. Labrum about 1.4 times broader than long, shiny, with large and distinct punctation. Ventral margin of labrum weakly concave, with small tooth-like projection in the middle. Clypeus shiny to weakly dull, with honeycombed punctation. SCA and lower part of frons distinctly keeled in the middle. Other parts of head mostly shiny, with more or less distinct, irregular punctation. Antenna rather short, reaching front margin of tegulae. Scape similar to male, about as long as following three AS together. Length of AS 3 and AS 4 similar to male. AS 5– AS 11 distinctly longer than broad (1.2 to 1.3 times). AS 12 nearly twice as long as broad. Posterior margin of AS 5– AS 11 straight, not concave as in male. Mesoscutum same as in male but with distinct median groove, nearly reaching hind margin. Scutellum similar to male, with very short, truncate scutellar spines. Basal half of scutellum in contrast to male with weak and flat median keel. Mesepisternum similar to male. Apical parts of fore and hind wing distinctly papillate. Femur and hind tibia of middle and hind leg only weakly thickened, distinctly more slender than in male. Inner spur of hind tibia straight, distinctly longer than outer spur. Basitarsus of hind leg rounded, only weakly flattened ventrally. T1–T5 similar to male. Triangular pygidial plate of T6 tesselate, slightly elevated in the middle. Structure of S1–S6 similar to male, marginal zone apically shiny, nearly impunctate. S5 with shiny elevated triangular flattened area apically.

Integument colour. Head and thorax mostly black. Proboscis brown, mandible mostly reddish brown. Labrum brownish transparent. Clypeus blackish brown with two small bright brown spots laterally. Antenna dark blackish brown except AS 3– AS 12 yellowish to reddish brown beneath. Legs black to blackish brown, tarsi blackish brown to bright brown. Tegula amber transparent. T1–T5 coloured similar to male, with distinct metallic gloss. Basal parts of all S dark brown to blackish brown, marginal zone transparent amber. Basal parts of pygidial plate reddish brown, apical part black.

Pubescence. Similar to male.

Diagnosis. T. hoozana is similar to T. heinzi sp. n., from which it can be separated by the diagnostic features given below for T. heinzi sp. n.

Distribution. Beside the type locality near Hoozan, which today is known as Fengshan (Kaohsiung Hsien, South-West Taiwan), this species also occurs in Lienhuachih (Nantou Hsien, Central Taiwan) and Raisha, now known as Sungkang (Nantou Hsien, Central Taiwan). For seasonal and altitudinal distribution of this species, see Fig. 10 .

Material examined. Type material. Holotype, ♂, TAIWAN: Hoozan (= Fengshan today), IX.1910, leg. Sauter ( DEI) . Other material. 1 ♂, 1 ♀, TAIWAN : 1 ♂, Raisha (= Sungkang today), 30.VIII.1927, J. Sonan, K. Shibata ( TARI) ; 1 ♀, Lienhuachih (650 m), Nantou Hsien, IX.1984, Malaise trap, leg. K.S. Lin & K.C. Chou ( TARI) .

Figures

FIGURE 6. Antenna of male Tetralonioidella of Taiwan. A, T. himalayana formosana; B, T.heinzi; C, T. hoozana. Scale bars, 1 mm.

FIGURE 8. Male genitalia of Tetralonioidella of Taiwan. A, T. heinzi; B, T. hoozana; C, T. himalayana formosana. All dorsal view, except A below, showing ventral aspect; Scale bars, 250 µm.

FIGURE 10. Seasonal-altitudinal distribution pattern of Tetralonioidella on Taiwan.