Pristaulacus intermedius Uchida, 1932

Published, First, 2007, Revision of the Palaearctic species of Pristaulacus Kieffer, 1900 (Hymenoptera: Aulacidae), Zootaxa 1433, pp. 1-76 : 48-50

Pristaulacus intermedius Uchida, 1932

( Figs. 14, 34, 54, 74, 88, 115)

Pristaulacus intermedius Uchida, 1932: 190 ( ♀).

Pristaulacus intermedius: Hedicke, 1939: 11 .

Pristaulacus intermedius: Smith, 2001: 288 .

Material examined. CHINA: Shaanxi province, Mounts Qinling, Xunyangba ( 6 km E), 1000–1300 m, 23.V– 13.VI.1998, 1♀, I.H. Marshal leg. ( OLML) . JAPAN: Kamakura , Kanagawa province, 2.VII.1961, 1♀, H. Nagase leg. ( CPTO) ; Sanno rindo, Tochigi, Fukushima, 28–30.VII.1987, 1♀, H. Makihara leg. ( ITLJ) ; Muhogaoha, Kawasaki SNI, 21.VI.1964, 1♂, N. Shimoda leg., coll. N. Katsuya ( ITLJ) ; Tateiwamura, Pref. Fukushima, 28–29.VII.1990, 2♀, K. Konishi leg. ( ITLJ, USNM) ; 23.VI.1990, 1♀, K. Hirano leg. ( USNM) ; Fukuoka, Mt. Hiko , 700 m, 19–29.VI.1989, 1♀, Takeno & Sharkey leg. ( AEIC) ; Gero-Osaka Ochai, N. Alps, Gifu Park , 5–7.VIII.1972, 1♀, coll. Jim Robertson ( LACM) ; Tachimoto Chichibu , 15.VII.1960, 1♀ ( USNM) ; Tokyo, XI.1931, 4♀, J.L. Gressitt ( CAS) .

Records from literature. Uchida (1932), Watanabe (1952), Konishi (1990).

Type locality. “ Iwate (Honshu)” ( Uchida 1932).

Notes on type material. The type material consists of the holotype ♀ (not examined), stored in the collection of the University of Hokkaido, Sapporo ( Konishi 1990) .

Redescription. ♀. Length (excluding ovipositor): 10.6 mm; fore wing length: 8.1 mm.

Colour black, except: mandible extensively red orange with base and apex blackish; maxillo-labial complex blackish with maxillary palpus lighter; legs blackish, with tibiae and tarsi brown; wings hyaline with veins and stigma dark brown; fore wing with a wide brown spot below stigma, 0.5x as wide as stigma length, reaching middle of SM2; metasoma blackish with S1, apex and sides of tergites irregularly dark red. Setae: whitish, except yellow gold on mandible, and light brown on metasoma.

Head ( Figs. 14, 34) from above, 1.26x wider than long, shiny; occipital margin straight; temple, from above, well developed, 1.1x longer than eye length, weakly convergent posteriorly, and regularly rounded; occipital carina moderately wide, lamelliform, about 0.5x diameter of an ocellus; POL:OOL= 0.9; ocellar area 2.0x wider than long; frons, vertex, and temple with fine, superficial, and scattered to moderately dense punctures (distance between punctures 2–3x diameter of a puncture); clypeus and malar area with fine, deep, and dense punctures (distance between punctures 1x diameter of a puncture); mandible polished and shiny, with coarse and deep punctures on base and in middle; antenna length 0.8x fore wing length; A3 5.6x longer than wide; A4 10.0x longer than wide, and 1.6x longer than A3; A5 8.8x longer than wide, and 1.4x longer than A3; following antennomeres progressively shorter, the apical one dorsoventrally compressed, with apex rounded, 2.0x longer than wide. Setae: erect, long, and moderately dense on most of frons, vertex and temples; recumbent, long, and moderately dense on clypeus, on lateral and lower part of frons, and on malar area; semierect, moderately long and dense on A1; setae length of temple 1x diameter of an ocellus.

Mesosoma ( Fig. 54) coarsely sculptured; pronotum areolate rugose to foveolate, with one well- developed tooth in middle of each lateroventral margin; propleuron polished and shiny, with very fine, superficial, and scattered punctures (distance between punctures 3–5x diameter of a puncture); prescutum triangular, deeply concave in middle, transverse carinate; mesoscutum transverse carinate with anterior margin, in lateral view, regularly rounded; notaulus deep and wide; scutellum transverse carinate; mesepimeron transverse carinate areolate; mesepisternum areolate rugose with upper part foveolate; metanotum longitudinally carinate; propodeum areolate rugose; ventral parts of mesosoma irregularly areolate rugose; fore wing with vein 2-rs+m short; fore coxa polished, shiny, with fine, superficial, and scattered punctures, moderately coarse, deep, and dense on base; mid coxa shiny, transverse carinulate on outer half, with fine, superficial and scattered punctures, except on base, transverse striolate punctate; hind coxa ( Fig. 74) shiny, transverse carinate, with dense carinae, except on medial part of ventral surface polished, with moderately coarse, deep, and scattered punctures (distance between punctures about 2x diameter of a puncture); trochanters shiny with regular, moderately coarse, deep, and moderately dense punctures; femora dull on dorsal surface, with coarse, deep, and dense punctures, shiny on ventral surface, with fine, superficial, and scattered to very scattered punctures; inner spur of mid and hind tibiae longer than outer spur; hind basitarsus 10.9x 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 or recumbent, longer and dense on lateral and ventral parts; erect, long, and scattered on hind surface of propodeum; erect, and moderately long and dense on propleuron, with setae length 0.7x fore pretarsus length; recumbent, short, and dense on dorsal surface of femora, longer and less dense on ventral surface.

Metasoma moderately compressed laterally, pyriform in lateral view; petiole elongate, moderately slen- der, 2.9x longer than wide; segments 1-2 polished and shiny, except median part of apex of T2, with fine, superficial and scattered punctures; following tergites with regular, very fine, superficial, and moderately dense puncture; S7 with coarse, moderately deep, and very dense punctures; T8 with fine, superficial, and moderately dense punctures; ovipositor 1.25x longer than fore wing length; valvula 3 of ovipositor with apex acute. Setae: segments 1 and 2 glabrous (except median part of apex of T2, with semierect, short, and scattered setae); recumbent, short, and moderately dense on the following tergites.

ď. Length: 12.4 mm; fore wing length: 10.0 mm. Colour, structure, and setae like ♀, except: metasoma blackish brown, with T1–3 partly reddish orange; antenna length 0.75x fore wing length; A3 3.8x longer than wide; A4 5.4x longer than wide, and 1.4x longer than A3; A5 5.2x longer than wide, and 1.36x longer than A3; A13 subcylindrical, 4.4x longer than wide, with apex rounded; hind basitarsus 9.9x longer than wide, and 1.1x longer than tarsomeres 2–5; petiole 4.1x longer than wide; metasomal segments 1 and 2 polished, shiny, and glabrous, except the medial and distal part of T1 with a few punctures and setae; following tergites with regular, fine, superficial, and dense punctures, and recumbent, short, and dense setae; genital capsule ( Fig. 88) with apex of paramere obliquely truncated, cuspis short and curved, digitus with lower apex long and moder-

ately narrow.

Intraspecific variation. Examined: 13♀, 1♂. Length: 10.2–10.7 mm ( ♀); fore wing length: 8.0– 8.5 mm ( ♀); ovipositor 1.15–1.20x longer than fore wing length. The metasoma may be more or less extensively dark reddish brown in the proximal half.

Distribution. China, Japan ( Hokkaido, Honshu, Shikoku, Kyushu).

Remarks. This is one of the most common and widely distributed Pristaulacus species in Japan.

Biology. Host: Chlorophorus japonicus (Chevrolat, 1863) ( Coleoptera Cerambycidae ) ( Uchida 1932).