Pristaulacus rufipilosus Uchida, 1932

Published, First, 2007, Revision of the Palaearctic species of Pristaulacus Kieffer, 1900 (Hymenoptera: Aulacidae), Zootaxa 1433, pp. 1-76 : 63-67

Pristaulacus rufipilosus Uchida, 1932

( Figs. 22, 42, 62, 82, 115)

Pristaulacus rufipilosus Uchida, 1932: 190 (♀).

Pristaulacus rufipilosus: Hedicke, 1939: 15 .

Pristaulacus rufipilosus: Smith, 2001: 296 .

Material examined. JAPAN: Kawairi, Mt. Iidesan (Fukushima Pref.), 30.VII–1.VIII.1985, 1♀, H. Makihara leg. ( ITLJ) .

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

Type locality. “Sapporo” ( Uchida 1932).

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

Redescription. ♀. Length (excluding ovipositor): 15.2 mm; fore wing length: 12.1 mm.

Colour black, except: mandible (except apical part), distal half of clypeus and malar area red orange; maxillo-labial complex brown, with articles 4–6 of maxillary palpus lighter; A1 and some basal antennomeres yellow orange; pronotum, propleuron, mesopleuron and lateral parts of propodeum yellow brown more or less darkened; legs entirely yellow orange, with base of hind coxa darker; wings hyaline, slightly yellowish, with brown veins; fore wing with median part of stigma dark brown, a wide subrectangular dark brown spot below stigma, as wide as stigma length, reaching median part of SM2, and irregular brown spots between SB and SD and on base of D2; metasoma dark brown with sides of T1, S1 and extensively segment 2 lighter; valvula 3 of ovipositor dark brown. Setae: yellow gold.

Head ( Figs. 22, 42), from above, 1.4x wider than long, polished and shiny; occipital margin straight; temple, from above, moderately developed, 0.7x as long as eye length, subparallel and regularly rounded posteriorly; occipital carina narrow, cerciniform, 0.2x diameter of an ocellus; POL:OOL= 1.2; ocellar area 2.0x wider than long; frons with fine, deep, and dense punctures (distance between punctures equal as diameter of a puncture); vertex and temple irregularly punctate, with fine, superficial, and scattered punctures, except ocellar area, with punctures as frons; clypeus rugulose punctate; malar area irregularly punctate, with deep and very dense punctures; mandible polished and shiny, with coarse and deep punctures on base and in middle; A3 4.1x longer than wide (other parts of antennae lacking). Setae: erect, short, and scattered on upper half of frons and on vertex, longer on temple; recumbent, and moderately long and dense on clypeus, on malar area, and on lower half of frons; recumbent, short, and scattered on A1; setae length of temple 0.6–0.7x diameter of an ocellus.

Mesosoma ( Fig. 62) coarsely sculptured; pronotum transverse carinulate medially, areolate rugose on upper part of sides, foveolate on lower part of sides, each lateroventral margin anteriorly angulate without tooth; propleuron polished, shiny, and irregularly punctate, with coarse, superficial, and moderately dense punctures on outer half, fine and scattered on inner half (distance between punctures 3–4x diameter of a puncture), rugulose apically; prescutum triangular, moderately concave medially, finely carinulate rugose; mesoscutum transverse carinate, with hind margin scrobiculate, and anterior margin, in lateral view, regularly rounded; notaulus deep and moderately wide; scutellum transverse carinate; mesepimeron irregularly transverse carinate; mesepisternum areolate rugose, except a small area on upper third, foveolate; metanotum longitudinally carinate; propodeum areolate rugose, with dorsal surface transverse carinulate to irregularly carinate; ventral parts of mesosoma polished, finely punctate, transverse carinate medially; fore wing with vein 2-rs+m short; fore coxa polished, shiny, with fine, superficial, and scattered punctures, coarse and deep on inner surface; mid coxa shiny, with base striolate punctate, and remaining parts with fine, superficial, and scattered punctures, except on base, rugulose; hind coxa ( Fig. 82) shiny, with dorsal surface foveolate punctate, and ventral surface polished with moderately coarse, deep, and dense punctures (distance between punctures 1–2x diameter of a puncture), except on base, striolate punctate; trochanters polished and shiny, with irregular, coarse, deep, and moderately dense punctures; dorsal surface of femora dull, with moderately coarse, deep, and dense punctures, and ventral surface shiny, with fine, superficial, and scattered punctures; inner spur of mid and hind tibiae slightly longer than outer spur; hind basitarsus 12.5x longer than wide, and 1.6x longer than tarsomeres 2–5; claw with four well-developed teeth. Setae: erect, short, and moderately dense on dorsal surface, recumbent, short, and dense on ventral surface, recumbent, long, and dense on pronotum and on dorsal surface of propodeum, erect, long, and dense on lateral and hind parts of propodeum; erect, moderately long, and moderately dense on propleuron, with setae length 0.4–0.5x fore pretarsus length; semierect, moderately long, and dense on hind coxa, erect on dorsal surface; recumbent, short, and dense on dorsal surface of fore and mid femora, erect, moderately long, and scattered on ventral surface; semierect to recumbent, short, and moderately dense on hind femur.

Metasoma moderately compressed laterally, subtriangular in lateral view; petiole elongate, slender, 4.2x longer than wide; segments 1 and 2 polished and shiny; following segments with very fine, superficial, and moderately dense punctures, except most of lateral margins of T3–T7 and of S3–S6; S7 striolate punctate, with coarse, moderately deep, and dense punctures; T8 shiny, with moderately coarse, deep, and scattered punctures; ovipositor 1.6x longer than fore wing length; valvula 3 of ovipositor with acute apex. Setae: segments 1 and 2 glabrous; recumbent, very short, and dense on median part of T3–T7; recumbent, short, and moderately dense on S3–S6; recumbent, short, and scattered on S7; erect, moderately long, and scattered on T8.

ď. Unknown.

Intraspecific variation. Examined: 1♀. Fore wing length: 11.8–12.4 mm (♀) ( Konishi 1990).

Distribution. Japan (Hokkaido, Honshu, Shikoku).

Remarks. Only four specimens, including the holotype ♀, of this species are currently known ( Uchida 1932; Konishi 1990). It is the only Palaearctic Pristaulacus species having yellow gold setae on the whole body. As with P. mourguesi , the hind basitarsus is 1.6x longer than tarsomeres 2–5.

Biology. Unknown.

Pristaulacus ryukyuensis Konishi, 1990

( Figs. 23, 43, 63, 83, 86, 107, 115)

Pristaulacus ryukyuensis Konishi, 1990: 648 (♀).

Pristaulacus ryukyuensis: Smith, 2001: 297 .

Material examined. JAPAN: holotype ♀ labelled “ Chuo-rindo , Amami-oshima Is., Kagoshima Pref., 1.VIII.1980, Rya Noda/ Holotype, Pristaulacus ryukyuensis Konishi, 1990 , Jpn. J. Ent., 58” ( ITLJ) ; paratype ♀ labelled “ Kunigami-son , Okinawa hontô Is., Okinawa Pref., 11.X.1988, H. H. Makihara / Paratype, Pristaulacus ryukyuensis Konishi, 1990 , Jpn. J. Ent., 58” ( ITLJ) ; paratype ♂ labelled “Amami-oshima Is., Kagoshima Pref., 28.III.1980, H. Makihara / Paratype, Pristaulacus ryukyuensis Konishi, 1990 , Jpn. J. Ent., 58” ( ITLJ) .

Records from literature. Konishi (1990).

Type locality. “Chuo-rindo, Amami-oshima Is., Kagoshima Pref. ” ( Konishi 1990).

Notes on type material. The type material consists of the holotype ♀ and 11 paratypes (8♀, 3♂) preserved in ITLJ.

Redescription. ♀ (holotype). Length (excluding ovipositor): 11.0 mm; fore wing length: 8.3 mm.

Colour black, except: median part of mandible and ventral part of A1 dark red; maxillo-labial complex dark brown, with articles 4–6 of maxillary palpus brown; mid femur, hind tibia and tarsus dark brown; mid tibia and tarsus brown; hind femur blackish brown; wings hyaline with veins and stigma dark brown; fore wing with a subrectangular dark brown spot below stigma, as wide as stigma length, reaching posteriorly SM1; metasoma blackish with apical margin of tergites and sternites lighter; valvula 3 of ovipositor blackish brown. Setae: whitish.

Head ( Figs. 23, 43), from above, 1.4x wider than long, polished and shiny; occipital margin straight; temple, from above, weakly developed, 0.5x as long as eye length, strongly convergent posteriorly, and regularly rounded; occipital carina narrow, cerciniform, 0.2x diameter of an ocellus; POL:OOL= 1.4; ocellar area 2.0x wider than long; frons and clypeus with fine and moderately deep and dense punctures (distance between punctures 1–2x diameter of a puncture), less defined on clypeus; vertex and temple with fine, moderately deep, and scattered punctures (distance between punctures 3–4x diameter of a puncture); malar area with moderately coarse, deep, and dense punctures; occipital area polished; mandible polished and shiny, with coarse and deep puncture on base and in middle; antenna length 0.8x fore wing length; A3 4.5x longer than wide; A4 6.4x longer than wide, and 1.5x longer than A3; A5 7.0x longer than wide, and 1.5x longer than A3; following antennomeres progressively shorter, apical one dorsoventrally compressed, with rounded apex, 2.1x longer than wide. Setae: erect, moderately long, and scattered on vertex and on upper half of frons; recumbent, moderately long, and very dense on lower part of frons, on clypeus, and on malar area; erect, moderately long, and dense on temple; recumbent or semierect, moderately long, and dense on A1; setae length of temple 1x diameter of an ocellus.

Mesosoma ( Fig. 63) coarsely sculptured; pronotum areolate rugose, with a lateral mucrone on each side, and a well-developed tooth on median part of each lateroventral margin; propleuron polished and shiny, with regular, very fine, superficial, and moderately dense punctures (distance between punctures 2x diameter of a puncture); prescutum triangular, moderately concave in middle, transverse carinate; mesoscutum transverse carinate, with two anterolateral, acute, hornlike processes, and anterior margin, in lateral view, acute; notaulus deep and wide; scutellum transverse carinate in middle, with concentric semicircular carinae, areolate rugose along margins; mesepimeron transverse carinate to areolate rugose; mesepisternum areolate rugose, with a small area on upper third areolate punctate; metanotum longitudinally carinate, areolate rugose in middle; propodeum areolate rugose, with base longitudinally carinate; ventral parts of mesosoma polished, shiny, punctate, transverse carinate in middle; fore wing with vein 2-rs+m short; (fore legs lost); mid coxa transverse carinate; hind coxa ( Fig. 83) shiny, with dorsal surface transverse carinate, and ventral surface polished, with regular, moderately coarse, superficial, and dense punctures (distance between punctures 1–2x diameter of a puncture); trochanters shiny, with regular, coarse, deep, and moderately dense punctures, more dense on hind trochanter; dorsal surface of mid femur dull, with coarse, deep, and dense punctures, ventral surface shiny, with coarse, moderately deep, and dense punctures; hind femur dull, with coarse, deep, and dense punctures, and ventral surface extensively transverse striolate punctate; inner spur of mid and hind tibiae slightly longer than outer spur; hind basitarsus 11.4x longer than wide, and 1.3x longer than tarsomeres 2–5; claw with four well-developed teeth. Setae: erect, moderately long, and scattered on dorsal surface, moderately long and dense on lateral and ventral parts, semierect, long, and dense on pronotum, erect, long, and moderately dense on hind surface of propodeum; erect, moderately long, and dense on propleuron, with setae length 0.5–0.6x fore pretarsus length; semierect, moderately long, and dense on coxae and trochanters, erect on dorsal surface of hind coxa; recumbent, short, and dense on dorsal surface of mid femur, erect, longer, and scattered on ventral surface; very short and moderately dense on hind femur, recumbent on dorsal surface, erect on ventral surface.

Metasoma moderately compressed laterally, pyrifom in lateral view; petiole elongate, slender, 3.3x longer than wide; segments 1 and 2 polished and shiny; following segments uniformly punctate, with very fine, superficial, and dense punctures; S7 with fine, deep, and moderately dense punctures; T8 uniformly punctate, with fine, superficial, and moderately dense punctures; ovipositor slightly longer than fore wing length; valvula 3 of ovipositor with apex acute. Setae: segments 1 and 2 glabrous; recumbent, short, and very dense on following segments; longer on S7 and T8.

ď (paratype). Length: 12.0 mm; fore wing length: 8.5 mm. Colour, structure, and setae like ♀, except: A3 4.7x longer than wide; A4 7.0x longer than wide, and 1.7x longer than A3; A5 6.8x longer than wide, and 1.6x longer than A3; hind basitarsus 10.7x longer than wide, and 1.25x longer than tarsomeres 2–5; T1 and T2 pol- ished, shiny, and glabrous; following metasomal segments regularly punctate, with fine, superficial, and dense punctures, and recumbent, short, and dense setae; sternites with punctures and setae less dense than tergites; petiole 3.7x longer than wide; genital capsule ( Fig. 86) with apex of paramere slightly pointed, cuspis wide and moderately curved, digitus wide with lower apex narrow and long.

Intraspecific variation. Examined: 2♀, 1♂. Fore wing length: 8.4–11.6 mm (♀, ♂) ( Konishi 1990).

Distribution. Japan (Amami-ôshima Island, Okinawa-hontô Island).

Remarks. Pristaulacus ryukyuensis is easily recognizable, among the Palaearctic Pristaulacus , by the shape of the mesoscutum, with anterolateral margin acute, slighlty protruding (in lateral view), hornlike shaped ( Figs. 63, 107). This character is found in other species from the Oriental and Neotropical Regions (Turrisi 2004).

Biology. Unknown.