Records of the Westem Australian Museum Supplement No. 52: 253-263 (1995).

New species of baeine parasitoids of eggs (: Scelionidae) from Western Australia

A.D. Austin Department of Crop Protection, Waite Campus, The University of Adelaide, P.O. Glen Osmond, South Australia 5064, Australia

Abstract Six species of scelionid from Western Australia belonging to the tribe Baeini, a group known only to be parasitic on spider eggs, are described as new: Mirobaeoides barbarae, M. manjimupensis, Ceratobaeus mainae, C. clavisegmentus, Hickma/lella walpolensis and H. noyesi. These species extend the morphological limits of their respective genera, and in the case of Mirobaeoides, enough to warrant its redescription. Psyllobaeus Austin (type species P. pecki Austin) known only from Lord Howe Island is synonymised with Mirobaeoides. Additional diagnostic notes are provided for Ceratobaeus Ashmead and Hickmanella Austin, along with comments on the relationships of the six new species, and the diversity and make up of the baeine fauna in southwestern Western Australia.

INTRODUCTION washed in concentrated detergent, rinsed in The scelionid tribe Baeini comprises some 200 distilled water, and examined uncoated under a described species world-wide (Johnson 1992), the Cambridge Stereoscan 250 (Mk 3B) scanning members of which are known only to be electron microscope at low keY or under an endoparasitoids of spider eggs (Austin 1985). In Electroscan environmental scanning electron this respect they probably constitute the most microscope. significant group of that limit spider Terminology for morphology follows Masner populations (Austin 1984a). Australia has a (1979, 1980) and Galloway and Austin (1984). particularly rich fauna of baeine wasps, of which Terminology used for surface sculpturing follows less than 10% have been treated formally. Until Harris (1979). The following abbreviations are recently, most taxonomic studies have focused on used: L, length; LOL, length between median and species found in eastern Australia where most field lateral ocelli; paL, length between lateral ocelli; W, work has been concentrated (e.g. Dodd 1914; width. Hickman 1967; Austin 1984b, 1986). However, Abbreviations of institutions are: ANIC, recent collecting in southwestern Western Australia Australian National Collection, Canberra; by a number of workers has revealed many new BMNH, The Natural History Museum, London; taxa. Six of these species, treated here, extend the CNCI, Canadian National Collection of Insects, limits of their respective genera. At the same time Arachnids and Nematodes, Ottawa; QDPI, the type species of Psyllobaeus Austin, known only Queensland Department of Primary Industries, from Lord Howe Island, is reinterpreted in a Indooroopilly; WARI, Waite Campus Collection, broader context and, consequently, synonyrnised with Mirobaeoides Dodd. The latter genus is The University of Adelaide, Adelaide. redescribed, and additional diagnostic characters are provided for the genera Cera/obaeus Ashmead and Hickmanella Austin. Notes are provided on the SYSTEMATICS relationships of the six new species, their diagnostic characters, and the diversity and make Family SceIionidae up of the baeine fauna in southwestern Western Australia. Two of the species described here are Tribe Baeini named in honour of Barbara Main to celebrate her Genus Mirobaeoides Dodd contribution to the knowledge of Australian . Mirobaeoides Dodd, 1914: 74; Kieffer, 1926: 275; Austin, 1981b: 90; Galloway and Austin, 1984: 87; Austin, 1986: 316; ]ohnson, 1992: 437. METHODS, TERMINOLOGY AND ABBREVIATIONS Notoscelio Hickman, 1967: 35. Synonymised by Specimens used for SEM examination were Austin 1981b: 90. 254 A.D. Austin

Psyllobaeus Austin, 1984c: 121. New synonymy. In one species, M. pecki (Austin) from Lord Howe Island, male the same as female, i.e. body smoothly Type species rounded, short and stocky, fusiform, mesosoma of Mirobaeoides: Mirobaeoides tasmanicus Dodd, and fully sessile, apterous, except antenna straight (not clavate) and 11-segmented 1914, by monotypy and original designation. (cf. males of other species which are 12­ segmented). Description

Female Comments Body smoothly rounded, usually short and When discussing the limits of Mirobaeoides, stocky, fusiform, apterous, metasoma sessile Austin (1986) pointed out the strong similarity against mesosoma; head usually transverse, between this genus, Psyllobaeus and several occiput usually strongly contoured to mesosoma; undescribed species, one of which is described here ocelli minute, sometimes almost invisible among as M. barbarae. It now seems likely that the sculpturing; lower gena striate; small frontal carina exclusion of these taxa from Mirobaeoides renders sometimes present; maxillary palps 2-segmented; this genus paraphyletic. Certainly, when describing labial palps I-segmented; eyes continuous with the monospecific Psyllobaeus, Austin (1984c) over­ surface of face; occipital carina sharp; antenna 11­ emphasised the importance of the aberrant male, segmented, with 5 funicle segments and 4­ which has the highly specialised morphology segmented clava; notauli absent; scutellum and typical of females of this genus and Mirobaeoides, metanotum narrow but visible dorsally (scutellum viz. wingless, fusiform body and sessile metasoma. expanded posteriorly and hiding metanotum in The males of previously described Mirobaeoides one species); hidden by sessile spp. are all fully winged and have the metasoma metasoma, only visible dorso-Iaterally; netrion, if flattened and clearly separated from the mesosoma present, indicated by smooth margin to lower This phenomenon of males having the specialised posterior pronotum; mesopleuron very body form of females is now known to be compressed, several times higher than wide, with associated with the genetic expression of coarse transverse striae dorsally; mesopleural carina, if present, near vertical; metapleuron short, winglessness in baeine wasps restricted to oceanic often not reaching to metanotum; distal hind femur and habitat islands (see Austin 1988; pers. comm. with pair of stout spines; T1 usually narrow, visible L. Masner). The inclusion of M. pecki and dorsally, sometimes partly hidden by metanotum, description of M. barbarae and M. manjimupensis rarely with low medial hump or crest; T2 usually expand the limits of Mirobaeoides to include species the largest tergite and then usually at least 2 x mid­ that have T3 slightly larger than T2 (M. barbarae line length of T1 or T3 and at least half length of and M. manjimupensis - Figs 1-4), the metanotum metasoma, sometimes occupying most of dorsal shortened transversely so that the propodeum is surface of metasoma, rarely with T3 larger or clearly visible dorsally (M. manjimupensis - Fig. 4), subequal in size to T2; laterotergites incised into T1 with a medial hump or crest (M. pecki and M. longitudinal sternal groove. barbarae - Figs 1 and 2), and males which are fusiform and apterous (M. pecki). Comparison with Male other baeine genera indicate that the first two of Nearly always with mesosoma and metasoma these characters are plesiomorphic and the last one separated, not fusiform, fully winged; mesosoma restricted to only two other known species, much higher than metasoma; eye slightly bulging Neobaeus novazealandensis Austin from New from face; antenna 12-segmented, last two Zealand (Austin 1988) and an undescribed species segments clearly separated; notauli developed as of Baeus from the high Andes (pers. comm. L. short triangular depressions at posterior margin of Masner). Mirobaeoides, as diagnosed here, is then scutum; scutellum posteriorly rounded, arched defined by four apomorphic characters; female dorsally, smooth and shiny; metanotum broadly body fusiform and wingless, metasoma sessile, protruding past posterior margin of scutellum, hind femur with pair of stout apical spines (Fig. 4). coarsely striate along anterior margin, the rest In Galloway and Austin's (1984) key to rugose; propodeum expanded and visible in dorsal Australian scelionine genera, M. barbarae and M. view, with narrow curved keel; fore wing venation manjimupensis run to Mirobaeus Dodd at couplet 2, not reaching middle of fore margin; basal vein but they can be readily separated from this genus strong, curving distally; metasoma dorso-ventrally by the possession of femoral spines. M. pecki poses flattened, moderately small, rounded or oval; T2 a less serious problem in that both the male and usually the largest tergum, often T2 and T3 female sex run to female Mirobaeoides, males being subequal. distinguishable by the shape of the antenna. New species of scelionid wasps 255

Mirobaeoides barbarae sp. novo Male Figures 1-3 Unknown.

Material Examined Comments Holotype M. barbarae is easily distinguished from other SJ, Australia: Western Australia: "W.AUST: species of Mirobaeoides by its relatively narrow Walpole NP Peaceful Bay, S & J Peck 17.VI­ elongate body, posteriorly emarginate metanotum, l1.VII.80 coast sand heath pan traps" (ANIC). hump on Tl, and large T3. It keys to M. tamborinensis Austin in Austin (1986) because of the striate-scrobiculate anterior margin of T2, but it can Paratypes be readily separated from this species by the above Australia: Western Australia: 2 SJ, same data as characters. It is known only from Peaceful Bay, holotype (CNCI, WARI). Walpole National Park, and is here named in honour of Or Barbara Main. Description Female Length: 0.75-0.85 mm. Mirobaeoides manjimupensis sp. novo Colour: Brown to dark brown, head slightly Figure 4 darker than rest of body. Head: Strongly arched around mesosoma, Material Examined slightly wider than mesosoma; in anterior view subcircular in shape; surface of frons and vertex Holotype extremely finely alutaceous, with scattered fine SJ, Australia: Western Australia: "W.AUST: 40 punctures and associated minute hairs; lower frons km ESE Manjimup, Cup Rd, 6-28.VII.80, S&J and lower gena with very fine striae radiating from Peck, open Jarrah for. malaise trap & trough" toruli; frontal carina faint, reaching approximately (ANIC). half distance to median ocellus; upper temples and rest of gena finely striate-alutaceous; minimum Description distance between eyes equal to half width of head; eyes hairless (x 80); LOL:POL = 1.2:1.4; clava as Female long as scape, 2 x as long as wide. Length: 0.75 mm. Mesosoma: Moderately elongate, fully sessile to Colour: Body dark brown, head darker than rest metasoma, slightly narrower than metasoma, in of body, almost black, clava brown, rest of antenna dorsal view almost parallel-sided in posterior half; yellow-brown. scutum broadly rounded anteriorly, L:W = 1.5:2.2, Head: Strongly arched around mesosoma, much surface finely imbricate-alutaceous with very fine wider than mesosoma; in anterior view subcircular posteriorly-directed hairs; scutellum rectangular, in shape; surface of frons and vertex coarsely one-third length of scutum, surface finely granulate with scattered punctures and associated imbricate-alutaceous with very fine posteriorly­ fine short hairs; lower frons with fine striae directed hairs; metanotum very narrow, medially radiating from toruli which curve upwards to about one-third length of scutellum, broadly frontal carina; frontal carina prominent ventrally, emarginate posteriorly, smooth to very faintly faint dorsally, reaching approximately two-thirds alutaceous, virtually glabrous; propodeum visible distance to median ocellus; temples and upper dorsally as small sclerites either side of gena finely and densely coriaceous; minimum metanotum; lateral mesosoma faintly distance between eyes equal to half width of head; longitudinally striate; metapleuron moderately eyes with minute hairs (x 80); ocelli minute, large, pointed dorsally; femoral spines on hind leg virtually hidden among granulate sculpturing; prominent. clava as long as scape, slightly more than 2 x as Metasoma: Moderately elongate, much longer long as wide. than head and mesosoma combined (4.5:2.8), Mesosoma: Fully sessile to metasoma, tapering posteriorly, convex; Tl with broad low substantially narrower than metasoma (2.3:2.8), in hump medially, sublenticular in dorsal view; mid­ dorsal view almost parallel-sided in posterior two­ line length of Tl:T2:T3 about 1:1:1.5; surface of Tl­ thirds; scutum broadly rounded anteriorly, LW = T4 imbricate-alutaceous with scattered short hairs, 1.7:2.3, surface granulate-coriaceous with scattered posterior margin smooth, anterior margins of T1 punctures, with moderately dense posteriorly­ and T2 striate-scrobiculate, but anterior margin of directed hairs; scutellum subrectangular, posterior T1 usually hidden under posterior margin of margin broadly rounded, more noticeable at metanotum and propodeum; T7 elongate, as long posterior corners, about one-third length of as basally wide. scutum, surface granulate-coriaceous with 256 A.D. Austin scattered punctures, with moderately dense poste­ Metasoma: Moderately short, as long as head riorly-directed hairs; metanotum slightly shorter and mesosoma combined, elongate-oval in shape, than scutellum in mid-line, posterior margin broad­ convex; n flat medially, anterior and posterior ly rounded, transverse, width narrow so that margins parallel in dorsal view; T2 and T3 propodeum prominently exposed at lateral corners subequal in size, mid-line length of n:T2:T3 = in dorsal view, surface finely striate-coriaceous; lat­ 6:12:14; surface of n finely granulate-striate, with eral mesosoma mostly smooth; metapleuron mod­ moderately dense posteriorly-directed hairs; T2 erately large, pointed dorsally; propodeum faintly and T3 minutely alutaceous with tiny punctures, longitudinally striate; femoral spines on hind leg with moderately dense posteriorly-directed hairs; prominent. anterior margin of T1 and T2 striate-scrobiculate

Figures 1-4 1-3, Mirobaeoides barbarae sp. nov.,

Figures 5-8 5,7: Ceratobaeus mail1ae sp. nov., paratype : 5, dorsal view of head, mesosoma and metasomal horn; 7, dorsal view of occiput and mesosoma. 6, Ceratobaeus clavisegmentLls sp. nov., holotype , dorsal view of head, mesosoma and metasomal horn. 8, HickmaneIla walpolensis sp. nov., holotype , dorsal view of head and mesosoma. Scale lines: 100 J.lm (Figs 5, 6, 8); 50 J.lm (Fig. 7). 260 A.D. Austin

Nornalup National Park. It is named after the un­ Australia expand the total fauna of this endemic usual form of the antennal clava, a character it Australian genus to four species. The inclusion of shares with C. mainae (see comments under that H. walpolensis and H. noyesi require that the species). diagnosis of Hickmanella be modified slightly to include species that have a reduced frontal carina and well-defined distal fore wing venation. The Genus Hickmanella Austin main diagnostic features for the genus are now that Hickmanella Austin, 1981a: 303; Galloway and the antenna is 11-segmented, including five funicle Austin, 1984: 91; Austin, 1988: 176; Johnson, segments and a distinctly four-segmented clava, 1992: 400. the head and dorsal mesosoma are covered with Hickmaniella Austin: Austin, 1981b: 85 (spelling very long posteriorly-directed hairs, the notauli are error). prominent, and the dorsal head is reniform in shape. The first of these characters is considered Type species plesiomorphic (see discussion under Mirobaeoides), Baeoneurella intrudens Hickman, 1967, by original the second apomorphic, while the polarity of the designation. last two characters is undetermined. The genus is closely related to Idris and may in fact render it Description (additional to Austin 1981a) paraphyletic. However, Hickmanella comprises a distinct and easily recognised assemblage of Female species and, like Ceratobaeus, its generic status will Frontal carina sometimes reduced, not keel-like only be resolved after a more detailed analysis of and not reaching to median ocellus; notauli these taxa on a world-wide basis. The four sometimes narrow; fore wing sometimes with basal included species comprise two distinct groups: H. and stigmal veins clearly defined (tubular). holoplatysa and H. intrudens which have a keel-like frontal carina, blurred distal fore wing venation Key to Species of Hickmanella and are found in eastern Australia (Austin 1981a), and H. walpolensis and H. noyesi which have a 1. Fore wing with stigmal vein blurred, reduced frontal carina, distinct venation (Fig. 10) represented by infuscate patch; frontal carina and are located in the southwest. keel-like, percurrent to median ocellus; In Galloway and Austin's (1984) key to scutum and scutellum coarsely to finely Australian scelionine genera, H. walpolensis and H. coriaceous; notauli as prominent broad noyesi run to Idris at couplet 22, but they can be grooves 2 readily separated from this genus by the form of Forewing with well-defined tubular stigmal the antenna (see above). vein (Fig. 10); frontal carina reduced, reaching about half to two-thirds distance to median ocellus, faint in dorsal half; scutum Hickmanella walpolensis sp. novo and scutellum finely granulate (Fig. 8); Figures 8, 10 notauli represented by narrow grooves (Fig. 8) 3 Material Examined 2. Tt virtually square in shape; posterior T2 Holotype slightly more than 2.5 x as wide as Tt . 9, Australia: Western Australia: "W.AUST: ...... H. intrudens (Hickman) Walpole NP Peaceful Bay,S & J Peck 17.VI­ T1 transverse, more than 3 x as wide as long; It.VU.80 coast sand heath pan traps" (ANIC). posterior T2 less than 2.0 x as wide as Tt . .... H. holoplatysa Austin Pa ra type 3. Head and mesosoma black, metasoma brown, Australia: Western Australia: 10, Stirling Rang­ antennae golden yellow, legs yellow; es N.P., 11.15.I.1987, J.S. Noyes, MT/YPT (BMNH). longitudinal striations on T2 and T3 fine and dense H. walpolensis sp. novo Description Head and mesosoma golden yellow, antennae Female and metasoma yellow, legs pale yellow; Length: 1.25 mm. longitudinal striations on T2 and T3 fainter .. Colour: Head and mesosoma black, metasoma ...... H. noyesi sp. novo brown, antennae golden yellow, legs yellow; wings evenly and faintly infuscate. Comments Head: In anterior view subtriangular to oval in The two species described here from Western shape; vertex straight, broadly rounded at eyes; New species of scelionid wasps 261

9

10

Figures 9, 10 Fore wings: 9, Ceratobaeus mainae sp. nov., paratype 9; 10, Hickmanella walpolensis sp. nov., paratype O. Scale lines: 100 pm. frons, vertex and occiput densely granulate, with with long fine hairs (denser and shorter than those long scattered hairs; cheeks with short striae; on scutum and scutellum); n longitudinally minimum distance between eyes to width of head striate, with upturned anterior margin, one-third = 2.5:3.8; eyes with long scattered hairs; frontal as long as posteriorly wide; ratio of mid-line length carina prominent basally, fainter dorsally, reaching of n:T2:T3 = 0.6:1.2:2.3; T2 longitudinally about half way to median ocellus; median ocellus strigulate; T3 finely strigulate; T4 and T5 finely partly recessed into small anterior depression; coriaceous; T2-T4 with smooth posterior margin. ocelli forming obtuse triangle, LOL:POL = 1.2:2.5, lateral ocelli not quite touching margins of eyes; in Male dorsal view head moderately elongate, vertex As for female except as follows: flattened, no wider than mesosoma; occipital carina Head slightly more oval in anterior view; prominent; in lateral view temple granulate; antenna moderately short, about 2 x as long as antennal clava compact, shorter than scape. scape, funicle segments short, f6-f9 transverse, last Mesosoma: Scutum LW = 2.3:3.3, surface two segments separated; metasoma more rounded densely granulate, with scattered long hairs; posteriorly, slightly shorter than head and notauli represented by narrow grooves, reaching mesosoma combined. about half way to anterior margin of scutum; scutellum moderately flat dorsally, LW = 1.5:2.5, Comments two-thirds length of scutum, almost semicircular in H. walpolensis is readily identified by the shape, surface densely granulate, posterior margin characters in the above key. It is very similar to H. with smooth narrow lip; propodeallamella almost noyesi from which it differs primarily in its striking horizontal, with five teeth (small medial tooth, colour pattern. It has been recorded from Peaceful large lateral teeth and small anterior teeth), surface Bay, Walpole National Park and the Stirling of propodeum longitudinally scrobiculate-carinate; Ranges, and has been named after the former in lateral view pronotum granulate in upper part, collecting locality. with longitudinally scrobiculate-carinate along postero-ventral margin; mesopleuron and metapleuron mostly smooth; fore wing broad, LW Hickmallella lloyesi sp. novo 8.2:3.4; stigmal vein tubular, well-defined; postmarginal vein short, about one-third length of Material Examined stigmal vein, basal vein absent. Metasoma: As long as head and mesosoma Holotype combined, 1.25 x as long as wide, suboval in shape, 9, Australia: Western Australia: "W. Australia 262 A.D. Austin

Walpole Nornalup NP 17-21.1.1987 J.5. Noyes MTI definitive work on this group of animals for YPT" (ANIC). Australia. I remember reading sections of this book and thinking what great animals these are and Description what wonderful experiments could be done. Female Without realising at the time, these two books and As for H. walpolensis except as follows: Barbara's other publications were instrumental in Length 1.3 mm; head and mesosoma golden my undertaking a Ph.D. on spider biology and, yellow, antennae and metasoma yellow, legs pale subsequently, working on the ecology and systematics of spider parasitoids. For this Barbara, yellow; longitudinal strigulations on T2 and T3 I am eternally grateful. . slightly fainter. I wish to thank Lubo Masner (CNCI) for bringing Male some of the species treated here to my attention, Unknown. and Paul Dangerfield for technical assistance.

Comments This species is unusual because of its vivid REFERENCES uniform yellow colouring. Only baeine wasps from Ashmead, W.H. (1893). Monograph on the North tropical regions were formerly known to have such American Proctotrypidae. United States National pale colouring, and hence the present species is Museum, Bulletin 45: 1-472. easily distinguished from all others in the southern Austin, A.D. (1981a). Hickmanella, a new genus of two-thirds of Australia. It is named after John Scelionidae from Australia (Hymenoptera: Noyes, chalcidologist at the Natural History Proctotrupoidea). Journal of the Australian Museum, London, for collecting so many Entomological Society 20: 303-308. interesting scelionids from southwestern Western Austin, AD. (1981b). The types of Australian species in Australia. the tribes Idrini, Baeini and Embidobiini (Hymenoptera: Scelionidae: Scelioninae). General and Applied Entomology 13: 81-92. Austin, A.D. (1983). Morphology and mechanics of the DISCUSSION ovipositor system of Ceratobaeus Ashmead Of the 80 species of baeine scelionids described (Hymenoptera: Scelionidae) and related genera. from Australia, only two, Mirobaeoides elongatus International Journal of Insect Morphology and Austin and M. occidentalis Austin are known from Embryology 12: 139-155. Western Australia. Recent collecting is the Austin, AD. (1984a). The fecundity, development and southwest by a number of workers, however, has host relationship of Ceratobaeus spp. (Hymenoptera: revealed a rich and apparently strongly endemic Scelionidae), parasites of spider eggs. Ecological baeine fauna. All seven baeine genera known from Entomology 9: 125-138. Australia (see Galloway and Austin 1984) are Austin, AD. (1984b). Species of Ceratobaeus Ashmead represented and, of the approximately 40 species (Hymenoptera: Scelionidae) from south-eastern recognised, 28 belong to Idris and Ceratobaeus. Australia. Transactions of the Royal Society of South Apart from the six species treated here, all are Australia 108: 21-34. undescribed and only four appear to occur outside Austin, A.D. (1984c). A new genus of apterous scelionid from Lord Howe Is. (Hymenoptera: Scelionidae). of the region. Collecting to date, although Systematic Entomology 9: 121-125. intensive, has focused on relatively few localities Austin, AD. (1985). The function of spider egg sacs in and future surveys in a wider range of habitats in relation to parasitoids and predators with special the southwest are therefore likely to reveal a much reference to the Australian fauna. Journal of Natural larger and taxonomically more interesting baeine History 19: 359-376. fauna than so far revealed. Austin, A.D. (1986). A taxonomic revision of the genus Mirobaeoides Dodd (Hymenoptera: Scelionidae). Australian Journal ofZoology 34: 315-337. ACKNOWLEDGEMENTS Austin, A.D. (1988). A new genus of baeine (Hymenoptera: Scelionidae) from New Zealand In 1975 I bought a copy of Barbara Main's associated with moss. New Zealand Journal of Zoology Jacaranda book, "Spiders of Australia" to identify 15: 173-183. spiders collected as part of an undergraduate Dodd, A.P. (1914). Australian Hymenoptera project. The following year, as an honours student Proctotrypoidea. No. 2. Transactions of the Royal in the Zoology Department at Sydney University I Society ofSouth Australia 38: 58-131. became seriously interested in spiders and Galloway, I.D. and A.D. Austin (1984). Revision of the undertook a project on the biology of Nephila Scelioninae (Hymenoptera: Scelionidae) in Australia. clavipes. During that year Barbara's second book on Australian Journal of Zoology, Supplementary Series 99: spiders was published by Collins, the first really 1-138. New species of scelionid wasps 263

Harris, R.A. (1979). A glossary of surface sculpturing. Masner, L. (1976). Revisionary notes and keys to world Californian Department ofFood and Agriculture, Bureau genera of Scelionidae (Hymenoptera: ofEntomology, Occasional Papers 28: 1-31. Proctotrupoidea). Memoirs of the Entomological Society Hickman, V.V. (1967). New Scelionidae (Hymenoptera) ofCanada 97: 1-87. which lay their eggs in those of spiders. Journal ofthe Masner, L. (1979). Pleural morphology in scelionid

I Entomological Society ofAustralia (N.S. W.) 4: 15-37. wasps (Hymenoptera: Scelionidae) - an aid to higher I Huggert, L. (1979). Revision of the West Palaearctic classification. Canadian Entomologist 111: 1079-1087. I species of the genus Idris Foerster, s.l. (Hymenoptera, Masner, L. (1980). Key to genera of Scelionidae of the Proctotrupoidea: Scelionidae). Entomologica Holarctic Region, with descriptions of new genera ~ Scandinavica, Supplement 12: 1-60. and species (Hymenoptera: Proctotrupoidea). Johnson, N.F. (1992). Catalog of World Species of Memoirs of the Entomological Society of Canada 113: 1­ Proctotrupoidea, Exclusive of Platygastridae 54. (Hymenoptera). The American Entomological Institute, Gainesville, Florida.

,! ' Kieffer, J.J. (1926). Hymenoptera. Proctotrupoidea. Manuscript received 10 January 1994; accepted 11 March Scelionidae. Das Tierreich 48: 1-885. 1994.