Habropoda sinensis taiwana, Dubitzky, 2007

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 : 54-56

Habropoda sinensis taiwana , ssp. n.

( Figs 2G, H , 4C, D, 5D)

Male. BL: 11.4–11.9 mm (11.7 mm). FWL: 8.4–8.6 mm (8.5 mm).

Structure. Head triangular, broader than long ( Fig. 2G ). Proboscis in repose short, just reaching front margin of forecoxae. Galea smooth with shallow sparse punctures. Labrum about 1.7 times broader than long, with large dense punctation basally except impunctate lateral humps. Ventral margin of labrum convex with a small incision in the middle. Clypeus smooth with regular, large punctation (=1). SCA protuberant, with small honeycombed punctation and distinct median ridge on basal half. Area around ocelli with dense small punctation. Vertex, GA, SCA and area between ocelli and compound eyes with dense medium-sized punctation. Frons tesselate, with medium-sized sparse punctation. Scape almost as long as following three AS together ( Figs 2G, H ), with dense distinct punctation ventrally. AS 3 conical, short, about as long as AS 4, only 1.2 times longer than broad apically ( Figs 2G, H ). AS 4– AS 13 distinctly longer than broad ( AS 4– AS 5 about 1.6 times, AS 6– AS 12 about 1.8 times and AS 13 about twice as long as broad). Mesoscutum with honeycombed punctation of variable diameters. Metanotum tesselate, dull, with large and regular punctation except small area in the middle. Scutellum, mesepisternum and pronotal lobe similar to mesoscutum. Tegula smooth and shiny with inconspicuous weak punctation. All T shiny, weakly tesselate, with very dense (<<1) honeycombed punctation of coarse, distinct punctures, sometimes of varying diameters. S shiny, with large dense punctation which becomes smaller from base to apex. Area near apical margin of S impunctate. Apical part of S7 (Fig. 4C) convex, separated from basal part by a narrow constriction. S8 as shown in Fig. 4D.

Integument colour. Body black. Galea and glossa reddish brown. Mandible yellow, except apical part as well as dorsal and ventral margins being blackish brown. Clypeus yellow except blackish brown line along ventral margin, two lateral teardrop-shaped maculations and a black area latero-ventrally ( Fig. 2G ). SCA black with yellowish line along ventral margin ( Fig. 2G ). All other parts of head black. Antenna black, AS 4– AS 13 chestnut beneath. All legs mostly black (coxae to tibiae) to blackish brown (apical tarsal segments). Claws reddish brown basally to black apically. Spurs of all legs bright greyish brown. Tegula transparent, amber. T as well as S black, except brown transparent line along apical margin of S1–S4.

Pubescence. Mandible with short to medium long white hairs basally and long white hairs along ventral margin. Labrum with medium long sparse white hairs. Clypeus mostly bare on disc and sparse long brown hairs laterally. Lateroapical corner of clypeus as well as lower part of SCA with short white hairs. Upper part of POA and SCA as well as face and vertex covered with dark brown hairs. Main parts of GA and occiput with long and dense, yellowish white to white hairs. Scape with long blackish brown hairs on ventral side. Mesoscutum densely covered with long yellowish brown pubescence, intermixed with dark brown to black hairs. Pronotal lobe with long, blackish brown hairs. Pubescence of mesepisternum yellowish brown dorsally to white ventrally. Ventral surface of forefemur ventrally with long white pubescence intermixed with black- ish brown hairs. Foretibia with brown to blackish brown long hairs ventrally and short yellowish white hairs dorsally. Foretarsus with brown to black pubescence of dense short hairs ventrally and long sparse hairs dorsally. Coxa and trochanter of middle and hind leg with long white pubescence. Femur of middle and hind leg with long white hairs. Pubescence of tibia and tarsus of middle and hind leg brown to blackish brown. T1 regularly covered with long yellowish white hairs. T2–T4 with short blackish brown hairs on disc and bright ochreous hair bands apically. T5–T7 regularly covered with short blackish brown hairs. S2–S4 with row of long greyish white hairs along apical margin. S5 and S6 covered with short blackish brown hairs. Apical margin and ventral surface of apical part of S7 with inconspicuous sparse microtricha (Fig. 4C). S8 with sparse microtricha ventrally and along apical margin (Fig. 4D).

Male genitalia ( Fig. 5D ). DGS about 1.3 times as long as VGS, slightly spatulate apically. Hairbrush of DGS sparse, about 1/3 as long as DGS. VGS about 1.5 times longer than broad, with brush of dense hairs (length about 1/3 of lateral extension of VGS) along corner of apical to basal inner margin of VGS. Apical part of inner margin of VGS with only few sparse hairs.

Female. BL: 12.6–13.8 mm (13.2 mm). FWL: 8.8 mm.

Structure. Head triangular, about 1.5 times broader than long. Proboscis extremely short in repose, just reaching front margin of forecoxa. Galea shiny, with shallow sparse punctation.. Labrum similar to male, with two tooth-like projections medially near ventral margin. Clypeus and SCA protuberant, the first is strongly convex in profile. Structure of clypeus weakly shiny, with irregular strong punctation, punctures largest and most sparse on disc and apical half. Basal half of clypeus as well as POA with smaller, dense punctation. Other parts of head as in male. Scape more slender and longer than in male, about as long as following three AS together, with distinct punctation on ventral side. AS 3 twice as long as broad apically and about twice as long as AS 4. Structure of thorax similar to male. Legs stronger and more truncate than in male. Tarsal segments 2–4 of foreleg truncate, flattened, distinctly broader than long. Forebasitarsus distinctly longer than broad, flattened, slightly concave ventrally. Structure of T and S similar to male but S duller and with more dense punctation than male. Pygidial plate dull, broadly triangular, apically pointed, with weakly elevated area in the middle.

Integument colour. Body as in male. Mandible only on basal third yellow. Clypeus blackish brown except inverted T-shaped yellow maculation along ventral margin. SCA completely black, sometimes with indication of yellow maculation along ventral margin.

Pubescence. Mandible with greyish brown to white pubescence. Labrum with dense, medium long greyish brown hairs. Pubescence of proboscis and clypeus as male. SCA with dense, short ochreous hairs. Pubescence of other parts of head and thorax as in male. Foretarsi with bottlebrush-like pubescence of dense, apically hooked, greyish brown hairs. Pubescence of other parts of foreleg as male. Pubescence of trochanter and femur of middle leg greyish brown to brown, with brush of dense and short dark brown hairs on ventral surface of apical trochanter and basal femur. Tibia and tarsus of middle leg with brown pubescence, ventral surface of metatarsus with brush of dense dark brown hairs. Pubescence of trochanter and femur of hind leg dark brown. Tibial scopa brown to dark yellowish brown. Pubescence of inner side of hind tibia dark brown, consisting of dense, short hairs. Basitarsus of hind leg with dark brown pubescence on outer side and dark reddish brown pubescence on inner side. Pubescence of T1 similar to male but being more yellowish ochreous. T2–T4 with short, yellow to orange hairs on disc and dense ochreous hair bands along apical margin. T4 with sparse, dark brown hairs laterally. Disc and lateral parts of T5 with sparse dark brown hairs. Prepygidial fimbria dark brown, only basally with inconspicuous yellowish brown spot. Pygidial fimbria dark brown. S2–S4 with rows of long yellowish grey hairs apically. S5 with apical hairbrush of brown to dark brown pubescence.

Diagnosis. H. sinensis taiwana ssp. n. is differentiated from the nominotypical form as follows (character states of H. sinensis sinensis Alfken, 1937 in parentheses):

Pubescence of middle and hind legs dark brown, especially on trochanter, femur and basitarsus of female hind leg (pubescence of middle and hind legs yellowish grey); prepygidial fimbria of female dark brown to black except small yellowish brown spot basally (completely bright yellowish grey); pubescence on disc of female T dark yellowish brown (T1–T3) to dark brown (T4–T5) (pubescence on disc of all T yellowish grey); apical hair bands of female T1–T4 dark yellow to fox-red (bright ochreous to yellowish white); mark of SCA of male more or less linear (distinctly triangular); male AS 3 as long as AS 4 ( AS 3 slightly longer than AS 4); male antenna from AS 4 onwards dark brown beneath (completely reddish brown beneath).

Since most of the distinctive features concern colouration of integument and pubescence and not structural characters, both taxa are treated at the subspecies level herewith.

Etymology. This subspecies is named after the island of Taiwan.

Distribution. H. sinensis taiwana ssp. n. is currently known only from the surroundings of the experimental forest Hueisun on Taiwan. For seasonal and altitudinal distribution of the species, see Fig. 9 .

Type material. Holotype, ♂, TAIWAN: Hueisun , experimental forest, ca. 600 m, 24°07'N / 121°03'E, 27.VI.2000, leg. A. Dubitzky ( NCHUT) . Paratypes, 1 ♂, 2 ♀♀, same data as holotype ( CAD).

Figures

FIGURE 2. Colour pattern of head (A, C, E, G) and basal AS (B, D, F, H) of male Habropoda of Taiwan. A, B, H. bucconis; C, D, H. tainanicola tainanicola; E, F, H. christineae; G, H, H. sinensis taiwana. Dotted lines indicate yellow to ivory areas (except on clypeus of H. tainanicola (C), dark maculations). Scale bars, 1 mm.

FIGURE 5. Genitalia of male Habropoda (left dorsal, right ventral view). A, H. tainanicola tainanicola; B, H. bucconis; C, H. christineae; D, H. sinensis taiwana. Scale bars, 500 µm.

FIGURE 9. Seasonal-altitudinal distribution pattern of Habropoda on Taiwan.