Pristaulacus chlapowskii Kieffer, 1900

Published, First, 2007, Revision of the Palaearctic species of Pristaulacus Kieffer, 1900 (Hymenoptera: Aulacidae), Zootaxa 1433, pp. 1-76 : 19-23

Pristaulacus chlapowskii Kieffer, 1900

( Figs. 6, 26, 46, 66, 116)

Pristaulacus Chlapowskii Kieffer, 1900a: 814 (♀).

Pristaulacus chlapowskii: Kieffer, 1912: 381 .

Pristaulacus chlapowskii: Hedicke, 1939: 6 .

Pristaulacus chlapowskii: Smith, 2001: 280 .

Material examined. RUSSIA: holotype ♀ labelled “Ban/ Aulacus Erichs. /Type/ Pristaulacus chlapowskii n. sp. /Zool. Mus. Berlin” ( ZMHB); Ban, 6♀, 1♂, coll. O. Sichel, 1867 ( MNHN). BULGARIA: Sozopol, 9.VIII.1966, 1♂, W.J. Pulawski leg. ( AEIC). ITALY: Friuli-Venezia Giulia, Trieste, Val Rosandra, 1♂, P. Rapuzzi leg., ex larva, from wood of Carpinus sp. containing Isotomus speciosus , emerged 6.VI.2000 ( PRCU); 1♀, G. Sama leg., ex larva, from wood of Ostrya carpinifolia , emerged 26.VI.2000 ( GSCC); Emilia Romagna, Forlì, di Sarsina, m 600, VII.1979, 1♀, E. Guterini leg., ex larva, from wood of Ostrya carpinifolia (MRSN) ; Emilia Romagna, Monteriolo di Sarsina (Forlì) , m 800, VI.1986, 1♂, G. Sama leg., ex larva, emerged together with Isotomus barbarae Sama, 1977 ( MSNP); Emilia Romagna, Cesena, V.1974, 2♀, G. Sama leg., ex larva, from wood of Prunus cerasus containing Acanthoderes (= Aegomorphus ) clavipes ; Emilia Romagna, Oriano (Parma), 30.VII.1995, 1♀, C. Pesarini leg. ( MCFS); 1♀ (unreadable labels) ( MNHN).

Records from literature. Kieffer (1900a), Lichtenstein & Picard (1918), Oehlke (1983), Pagliano (1986), Šedivý & Č apek (1988).

Type locality. “ Russia ” ( Kieffer 1900a) .

Notes on type material. The number of type specimens was not stated in the original description ( Kieffer 1900a). In ZMHB I have found only one type specimen, here considered as holotype. This specimen is seriously damaged and lacks several parts of the body: antennae (except A1–A4); tarsomeres 2–5 of the left hind leg; valvulae 3 of ovipositor.

Redescription. ♀. Length (excluding ovipositor): 15.0 mm; fore wing length: 11.0 mm.

Colour black, except: mandible medially dark reddish; maxillo-labial complex and occipital carina dark brown; A1 dark reddish; legs blackish brown, except orange brown, more or less dark, on distal third of fore and mid femora, fore and mid tibiae and tarsi; hind femur, tibiae and tarsi dark brown with apex of tibiae lighter; last tarsomere of all legs blackish brown; wings hyaline, with veins brown or dark brown and stigma brown, lighter medially; fore wing with brown spot behind stigma, 1/3 as wide as stigma length, reaching pos- teriorly SM1; hind wing with some veins brown; metasoma extensively red orange, except blackish brown on most part of T1; valvula 3 of ovipositor blackish brown. Setae: extensively brown on frons; whitish on temple, clypeus, lateral margins of frons, mesosoma, and metasoma; yellow gold on mandible; brownish on tibiae and tarsi.

Head ( Figs. 6, 26) from above, 1.3x wider than long, shiny; occipital margin straight; temple, from above, well developed, as long as eye length, moderately convergent posteriorly and weakly convex; occipital carina wide, lamelliform, as wide as diameter of an ocellus; POL:OOL= 1.1; ocellar area 2.0x wider than long; frons and clypeus with regular, fine, moderately deep, and scattered punctures (distance between punctures 2–3x diameter of a puncture); vertex and temple with irregular, fine to moderately coarse, superficial to deep, and scattered punctures; malar area with coarse, deep, and very dense punctures; occipital area polished; mandible polished and shiny, with coarse, deep, and moderately dense punctures on base and in middle; antenna 1.1x longer than fore wing length; A3 5.6x longer than wide; A4 9.3x longer than wide, and 1.5x longer than A3; A5 8.7x longer than wide, and 1.4x longer than A3; following antennomeres progressively shorter, last one dorsoventrally compressed, with apex regularly rounded, 2.0x longer than wide. Setae: erect, moderately long, and scattered on lateral margins of frons, malar area, and clypeus; semierect, moderately dense, and long on A1; setae length of temple as diameter of an ocellus.

Mesosoma ( Fig. 46) coarsely sculptured; pronotum areolate rugose, each lateroventral margin angulate with one median well-developed tooth; propleuron polished and shiny with coarse, superficial, and moderately dense punctures (distance between punctures 1–2x diameter of a puncture); prescutum subtriangular, deeply concave in middle, areolate rugose; mesoscutum transverse carinate with anterior margin, in lateral view, regularly rounded; notaulus deep and wide; scutellum areolate rugose, transverse carinate medially; mesepimeron transverse carinate (carinae irregular and spaced); mesepisternum areolate rugose, with upper third foveolate punctate; metanotum rugose medially, with a few, irregular, longitudinal carinae; propodeum areolate rugose, with short longitudinal carinae on base; ventral parts of mesosoma polished with irregular carinae on sides, and transverse carinate medially; fore wing with vein 2-rs+m short; fore coxa polished, shiny, with a few coarse and deep punctures on proximal half; mid coxa irregularly transverse carinulate; hind coxa ( Fig. 66) shiny, irregularly transverse carinulate, with coarse, deep, and scattered punctures (distance between punctures 2x or more diameter of a puncture), nearly absent on distal third; fore and mid trochanters polished, shiny, with fine, superficial and scattered punctures; hind trochanter polished, shiny, with irregular, coarse, deep, and dense punctures; femora dull on dorsal surface, shiny on ventral surface; fore and mid femora with moderately coarse, deep, and dense punctures on dorsal surface, fine, superficial, and very scattered on ventral surface; hind femur extensively transverse striolate, with coarse, deep, and dense punctures on dorsal surface, scattered on ventral surface; spurs of mid tibia of the same length; inner spur of hind tibia slightly longer than outer spur; hind basitarsus 12.2x longer than wide, and 1.2x longer than tarsomeres 2–5; claw with four well developed teeth. Setae: erect, short, and scattered on dorsal surface, semierect, moderately long, and slightly denser on sides, especially on pronotum and on ventral parts; erect, long, and scattered on hind surface of propodeum; erect and moderately long and dense on propleuron, with setae length less than fore pretarsus length; erect, long, and scattered on coxae and trochanters; recumbent, short, and moderately dense on dorsal surface of femora, erect, short, and scattered on ventral surface.

Metasoma laterally compressed, pyriform in lateral view; petiole elongate, moderately slender, 2.2x longer than wide; segment 1 polished and shiny, except a very few punctures on T1; T2 irregularly and very finely striolate with a few punctures; following segments finely striolate, with fine and very scattered punctures; S7 punctate striolate; T8 finely sculptured, with very fine and scattered punctures; ovipositor 1.8x longer than fore wing length; valvula 3 of ovipositor acute. Setae: segments 1 and 2 glabrous; recumbent, short, and scattered on median part of tergites and sternites; recumbent, short, and moderately dense on S7; recumbent, short, and scattered on T8.

ď. Length: 13.5 mm; fore wing length: 8.8 mm. Colour, structure, and setae like ♀, except: antenna equal length of fore wing; A3 3.3x longer than wide; A4 5.3x longer than wide, and 1.6x longer than A3; A5 as long and wide as A4; A13 cylindrical, slightly enlarged, 5.0x longer than wide, with apex rounded; hind basitarsus 12.0x longer than wide; metasoma more slender; petiole 2.6x longer than wide; metasomal segments 1 and 2 polished, shiny, and glabrous; following tergites with regular, very fine, and moderately dense punctures and with recumbent, short, and moderately dense setae; median part of sternites with very fine punctures and recumbent, short, and very scattered setae.

Intraspecific variation. Examined: 13♀, 4♂. Length (excluding ovipositor): 10.6–15.8 mm (♀); 12.5– 13.5 mm (♂); fore wing length: 7.6–11.0 mm (♀), 8.6–9.0 mm (♂); ovipositor 1.5–1.8x longer than fore wing length. The mandible varies from dark red to blackish; A1, except apex, is darkened (blackish) in some speci- mens; the brown spot on fore wing is always present, although it can be more or less wide; the colour of metasoma varies from light red orange to dark red; the punctures on frons is more dense and deep in some specimens (distance between punctures as diameter of a puncture). The setae on frons, temple and vertex (♀ and ♂) varies from light brown to dark brown. The sculpture of hind coxa (♀) is more or less extended and strong.

Distribution. France, Czech Republic, Hungary, Bulgaria (*), Russia, Italy.

Remarks. This species is reported from Bulgaria for the first time. Pristaulacus chlapowskii , as P. galitae (Gribodo) , has one tooth on each lateroventral margin of the pronotum, and four well- developed teeth on the inner margin of claw. It can be distinguished from the latter species, by its large body size, by the wider occipital carina, and by the longer ovipositor (♀). However, small males of P. chlapowskii could resemble large males of P. galitae ; thus, additional diagnostic features are reported in Table 2.

Biology. Hosts: Chlorophorus pilosus (Förster, 1771) , Isotomus speciosus (Schneider, 1787) ( Coleoptera , Cerambycidae ) ( Lichtenstein & Picard 1918; Šedivý & Č apek 1988); I add Isotomus barbarae Sama, 1977 and Aegomorphus clavipes (Schrank, 1781) ( Coleoptera , Cerambycidae ).