Pristaulacus comptipennis Enderlein, 1912

Published, First, 2007, Revision of the Palaearctic species of Pristaulacus Kieffer, 1900 (Hymenoptera: Aulacidae), Zootaxa 1433, pp. 1-76 : 28-32

Pristaulacus comptipennis Enderlein, 1912

( Figs. 8, 28, 48, 68, 85, 102, 115)

Pristaulacus comptipennis Enderlein, 1912: 265 (♀).

Pristaulacus comptipennis: Hedicke, 1939: 7 .

Pristaulacus comptipennis: Smith, 2001: 282 .

Material examined. TAIWAN: lectotype ♀ labelled “Hoozan, Formosa, II.10, H. Sauter/ Pristaulacus comptipennis Enderl. ♀, Type, Dr. Enderlein det. 1912/ Syntypus /Eberswalde coll. DEI/ Lectotypus ♀, Pristaulacus comptipennis Enderlein, 1912 , des. T. Megjaszai 1999/ Pristaulacus comptipennis Enderlein, 1912 ♀, Lectotypus G. F. Turrisi des. 2006” ( DEI); 2♀ paralectotypes both labelled “Hoozan, Formosa, V.10, H. Sauter/ Pristaulacus comptipennis Enderl. ♀, Type, Dr. Enderlein det. 1912/ Syntypus /Eberswalde coll. DEI/ Paralectotypus ♀, Pristaulacus comptipennis Enderlein, 1912 , des. T. Megjaszai 1999/ Pristaulacus comptipennis Enderlein, 1912 ♀, Paralectotypus G. F. Turrisi des. 2006” ( DEI); Hoozan, V.1910, 1♀, H. Sauter ( DEI); Anping, 22.VII.1911, 2♀, H. Sauter ( DEI); Kankau (Koshun), V.1912, 1♀, H. Sauter ( DEI); Kosempo, H. Sauter, 2♀ ( DEI, USNM); 1911, 1♀, H. Sauter ( DEI); 1912, 2♂, H. Sauter ( DEI, USNM); V.1912, 7♂, H. Sauter ( DEI); Tainan, 22.VII.1911, 2♀, 2♂, H. Sauter ( DEI); Taihorin, V.1910, 2♀, H. Sauter ( DEI); Hoozan, IX.1910, 1♀, Sauter ( ZMHB); Taihorish, VI.1910, 2♀, H. Sauter S-G. ( ZMHB); IX.1910, 1♀, 1♂ ( ZMHB); X.1910, 1♂ ( ZMHB); Taihorinsho, IX.1909, 1♀, Sauter ( HNHM); Kosempo, IX.1909, 3♀, Sauter ( HNHM); Puli Village, Nam-tou, Hsien, 15–30.XII.1963, 1♀, coll. K.H. Chen ( LACM). JAPAN: Iriomote Isl., Komi, 19.VI.1971, 1♀, Toshiaki Aoki leg., coll. S. Katsuya (n. 4191) ( ITLJ); Horsha, T. Fukai, 1♀, 1♂, and one undetermined, metasoma missing ( USNM); CHINA: Hong Kong, Pak Sha O, 22.25N, 114.19E, 3.VI.2005, 1♀, Ch. Bartelemy leg. ( USNM).

Records from literature. Enderlein (1912, 1913), Konishi (1990, 1991).

Type locality. “ Formosa: Hoozan ” ( Enderlein 1912) .

Notes on type material. According to Enderlein (1912: 265) the type material consists of 8 females stored in ZMHB and in DEI. In the latter Museum I found only three specimens surely belonging to the type series, and 20 additional specimens (10 females and 10 males, see material) collected by H. Sauter in Taiwan. No type specimen was found in ZMHB. According to Huflejt (1996), other four type specimens (not examined) are stored in the collection of Museum and Institute of Zoology of the Polish Academy of Sciences in Warsaw. For this taxon Enderlein (1912) did not indicate an holotype, thus, the examined three type specimens are here considered as syntypes. Megjaszai T. in the year 1999 (original handwritten labels) designated, among these syntypes, one lectotype and two paralectotypes (unpublished), which I here formally establish ( ICZN 1999: article 74). The lectotype lacks most of the antennae (except A1–A5 of left antenna and A1–A6 of right antenna), tarsi of right mid leg, and of left hind leg, and valvulae 3 of ovipositor. With regard to these lacking parts of the body, a description is provided on the basis of the other examined specimens (in brackets).

Redescription. ♀ (lectotype). Length (excluding ovipositor): 14.2 mm; fore wing length: 10.5 mm.

Colour black except: mandible, extensively orange brown, except blackish brown on base and apex; maxillo-labial complex brown; malar area, clypeus and occipital carina brown, more or less dark; antenna, blackish brown with A1 and A2 orange brown; mesosoma and coxae blackish brown, more or less dark; remaining parts of legs red orange, with femora darker; wings hyaline with veins and stigma brown; fore wing with wide and irregular brown spots on basal part, below stigma and on apex; hind wing slightly brown on base and on apex; metasoma blackish brown, with T1 and apex of following tergites lighter; valvula 3 of ovipositor dark brown. Setae: whitish to brown on head; slightly gold along lateral margins of frons and on clypeus; yellow gold on mandible; whitish on mesosoma; light brown on metasoma.

Head ( Figs. 8, 28, 102), from above, 0.8x as wide as long, shiny; occipital margin deeply grooved medially; temple, from above, well developed, 0.8x as long as eye length, strongly convergent behind and rounded posteriorly; occipital carina wide, lamelliform, 0.6–0.8x diameter of an ocellus, interrupted medially, in the occipital groove; POL:OOL= 1.0; ocellar area 2.1x wider than long; temple and vertex with fine, superficial, and scattered punctures (distance between punctures 4–5x diameter of a puncture), denser on frons and on clypeus (distance between punctures 2–3x diameter of a puncture); malar area with fine, deep, and very dense punctures; occiput polished; mandible polished and shiny, with coarse, deep, and dense punctures on base and on proximal half; (antenna 0.7x as long as fore wing length); A3 5.3x longer than wide; A4 10.4x longer than wide, and 1.6x longer than A3; A5 9.3x longer than wide, and 1.3x longer than A3; (following antennomeres progressively shorter, the apical one slightly dorsoventrally compressed, 2.2x longer than wide, with apex regularly rounded). Setae: erect, short, and moderately dense on most of frons; recumbent, long, and dense on clypeus and on lateral margins and lower parts of frons; recumbent, moderately long, and dense on malar area; erect or semierect, moderately long, and dense on temple; setae length of temple 0.8–1.0x diameter of an ocellus; semierect, long, and moderately dense on base of mandible; semierect, short, and moderately dense on A1.

Mesosoma ( Fig. 48) coarsely sculptured; pronotum, areolate rugose, except median area, shiny and areolate punctate, with one well-developed tooth on each lateroventral margin; propleuron polished and shiny, with fine, superficial, and scattered punctures (distance between punctures 3–5x diameter of a puncture); prescutum subtriangular, concave in middle, transverse carinulate to areolate rugose; mesoscutum transverse carinate to areolate rugose, with anterior margin, in lateral view, regularly rounded; notaulus deep and very wide; scutellum with strong transverse concentric carinae except anterolateral corners, areolate rugose; mesepimeron transverse carinate; mesepisternum areolate rugose, except a small area on upper third, foveolate; metanotum longitudinally carinate; propodeum areolate rugose, except base, longitudinally carinate; ventral parts of mesosoma shiny, irregularly rugose; fore wing with vein 2-rs+m short; fore coxa transverse striolate on outer surface, polished, shiny, with fine, superficial, and scattered punctures on remaining parts; mid coxa shiny, transverse carinulate, except base, with coarse, deep, and dense punctures; hind coxa ( Fig. 68) with dorsal surface transverse carinate, and ventral surface polished to transverse striolate, with coarse, moderately deep, and moderately dense punctures (distance between punctures 2–3x diameter of a puncture), and weak transverse carinae on margins; trochanters shiny, with very fine, superficial, and scattered punctures on fore trochanter, moderately coarse and moderately dense to very dense on mid and hind trochanters; femora dull on dorsal surface, with moderately coarse, deep, and dense to very dense punctures, shiny on ventral surface, with fine to moderately coarse, superficial and scattered punctures; spurs of mid tibia of the same length; inner spur of hind tibia, longer than outer spur; hind basitarsus 10.6x longer than wide, and 1.1x longer than tarsomeres 2–5; claw with four well-developed teeth. Setae: erect, short, and moderately dense on dorsal parts; semierect, long, and dense, on pronotum; semierect, short, and dense on mesopleuron and on ventral parts, recumbent on upper third of mesepisternum; erect, long, and scattered on hind surface of propodeum; erect, moderately long, and dense on propleuron, with setae length 0.6–0.7x fore pretarsus length; semierect, long, and dense on fore coxa; semierect, short, and moderately dense on mid coxa and ventral surface of hind coxa, erect, long, and moderately dense on dorsal surface of hind coxa; recumbent, very short, and dense on dorsal surface of fore and mid femora, erect, moderately long, and scattered on ventral surface; recumbent, very short, and dense on dorsal surface of hind femur, erect on ventral surface.

Metasoma strongly compressed laterally, pyriform in lateral view; petiole elongate, slender, 4.5x longer than wide; segments 1 and 2 polished and shiny, except lateral parts of the distal margin of S2, weakly punctate; following segments, with very fine, superficial, and moderately dense punctures; S7 with irregular, coarse, deep, and dense punctures; T8 with very fine, superficial, and scattered punctures; ovipositor 1.1x longer than fore wing length; (valvula 3 of ovipositor with apex acute). Setae: segments 1 and 2 glabrous, except lateral parts of distal margin of S2, with recumbent, very short, and moderately dense setae; semierect, moderately long, and dense on S7; semierect, moderately long, and scattered to moderately dense on T8.

ď. Length: 12.2 mm; fore wing length: 8.9 mm. Colour, structure, and setae like ♀, except: antenna 0.8x as long as fore wing length; A3 3.8x longer than wide; A4 6.2x longer than wide, and 1.6x longer than A3; A5 5.5x longer than wide, and 1.4x longer than A3; A13 cylindrical, with rounded apex; hind basitarsus 14.0x longer than wide; petiole 5.0x longer than wide; genital capsule ( Fig. 85) with apex of paramere obliquely truncated, cuspis moderately curved and wide, digitus wide with lower apex moderately wide and long.

Intraspecific variation. Examined: 26♀, 14♂. Length (excluding ovipositor): 9.0– 14.2 mm (♀); 12.2– 13.0 mm (♂); fore wing length: 7.0– 10.5 mm (♀); 8.9–9.7 mm (♂); ovipositor 1.1–1.3x longer than fore wing length.

Distribution. China (*), Japan (Iriomote-jima Island, Okinawa-hontô Island), Taiwan.

Remarks. Pristaulacus comptipennis is recorded from China for the first time. It is easily identified, together with two other eastern Palaearctic species, by the presence of a deep median occipital groove and the entirely blackish metasoma, without red marks; the differences among those species are given in the key to species.

Biology. Host: Ceresium elongatum Matsushita, 1933 ( Coleoptera , Cerambycidae ) ( Konishi 1991).