Euagathis Szépligeti,1900

Stevens, Nicholas B., Austin, Andrew D. & Jennings, John T., 2010, Synopsis of Australian agathidine wasps (Hymenoptera: Braconidae: Agathidinae), Zootaxa 2480, pp. 1-26 : 17

publication ID	https://doi.org/10.5281/zenodo.195400
DOI	https://doi.org/10.5281/zenodo.6209271
persistent identifier	https://treatment.plazi.org/id/8A1487CF-A860-FF80-FF11-2C871E2BF86A
treatment provided by	Plazi (2016-04-09 18:29:37, last updated 2024-11-29 10:36:55)
scientific name	Euagathis Szépligeti,1900
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Euagathis Szépligeti,1900 View in CoL View at ENA

( Fig. 10 View FIGURE 10 C)

Euagathis Szépligeti,1900: 62 View in CoL . Type species: Euagathis bifasciata Szépligeti, 1900 View in CoL , by subsequent designation Viereck, 1914: 32; Shenefelt, 1970b: 408 [catalogue]; Bhat & Gupta, 1977: 183 [key, description]; Chou & Sharkey, 1989: 186 [key, description]; Simbolotti & Achterberg, 1990: 3 [key, description]; Sharkey, 1992: 441 [in tribe Disophrini]; Simbolotti & Achterberg, 1995: 6 [key, description]; Sharkey, 1996:21 [key, description]; Achterberg & Chen, 2002: 311 [key, description]; Achterberg, 2004: 2 [key, description]; Yu et al., 2005 [catalogue]; Sharkey et al., 2006: 558 [notes, phylogeny, in tribe Disophrini]; Sharkey et al., 2009: 42 View Cited Treatment [key, description].

Chromomicrodus Ashmead, 1900: 129. Type species: Chromomicrodus abbotti Ashmead, 1900 , by monotypy; Baltazar, 1961: 391 [synonym of Euagathis View in CoL ]; Shenefelt, 1970b: 409 [synonym of Euagathis View in CoL ].

Holcotroticus Cameron, 1902: 41. Type species: Holcotroticus ruficollis Cameron, 1902 , by monotypy; Shenefelt, 1970b: 417 [catalogue]; Sharkey, 1992: 441 [in tribe Disophrini]; Simbolotti & Achterberg, 1995: 6 [synonym of Euagathis ].

Balcemena Cameron, 1903: 130. Type species: Balcemena longicollis Cameron, 1903 , by monotypy; Shenefelt, 1970b: 368 [catalogue]: Bhat & Gupta, 1977: 173 [catalogue]; Sharkey, 1992: 441 [in tribe Disophrini]; Achterberg & Chen, 2002: 313 [synonym of Euagathis ].

Diagnosis. Length: 5–12 mm; colour: commonly yellow and dark brown; inter–antennal region with paired carinae present (e.g., Figs 6 View FIGURE 6 B and 7B); frons without lateral carinae; notauli present, with (e.g., Fig. 3 View FIGURE 3 B) or without sculpturing, often complete or only present anteriorly; tarsal claws cleft, but base not pectinate (e.g., Fig. 2 View FIGURE 2 A); mid tibial preapical spines absent; fore tibial spur short, not exceeding 0.75 length of basitarsus (e.g., Fig. 2 View FIGURE 2 F); hind trochantellus without longitudinal carinae; fore wing cell 1–RS always present and sessile, vein 2–RS2 absent or basal sector only present; ovipositor short, length less than 0.5 metasoma length (e.g., Fig. 10 View FIGURE 10 D).

Comments. Euagathis species display the characteristic yellow and dark brown colour pattern associated with a putative mimicry complex that also includes species of Cremnops and Disophrys . Euagathis is closely related to Coccygidium and Hypsostypos ( Sharkey et al. 2006) but can be distinguished from both genera by the absence of longitudinal carinae on the hind trochantellus.

Species richness and distribution. Euagathis is represented in Australia with about five species, only one of which is described. The genus occurs in the Torresian and northern Kosciuskan regions of the continent.

References

Achterberg, C. van & Chen, X. (2002) Revision of the Euagathis species (Hymenoptera: Braconidae: Agathidinae) from China and the northern Vietnam. Zoologische Mededelingen Leiden, 76, 309 - 346.

Ashmead, W. H. (1900) Notes on some New Zealand and Australian parasitic Hymenoptera, with descriptions of new genera and new species. Proceedings of the Linneaen Society of New South Wales, 25, 327 - 360.

Baltazar, C. R. (1961) New generic synonyms in parasitic Hymenoptera. Philippines Journal of Science, 90, 391 - 395.

Bhat, S. & Gupta, V. K. (1977) Ichneumonologia Orientalis Part VI. The subfamily Agathidinae (Hymenoptera: Braconidae). Oriental Insects Monograph No. 6, 1 - 344.

Cameron, P. (1902) On the Hymenoptera collected by Mr. Robert Shelford in Sarawak, and on the Hymenoptera of the Sarawak Museum. Journal of the Straits Branch of the Royal Asiatic Society, 37, 29 - 131.

Cameron, P. (1903) Descriptions of new genera and species of Hymenoptera taken by Mr. Robert Shelford at Sarawak, Borneo. Journal of the Straits Branch of the Royal Asiatic Society, 39, 89 - 181.

Chou, L. Y. & Sharkey, M. J. (1989) The Braconidae (Hymenoptera) of Taiwan 1. Agathidinae. Journal of the Taiwan Museum, 42, 147 - 223.

Sharkey, M. J. (1992) Cladistics and tribal classification of the Agathidinae (Hymenoptera: Braconidae). Journal of Natural History, 26, 425 - 447.

Sharkey, M. J. (1996) The Agathidinae (Hymenoptera: Braconidae) of Japan. Bulletin of the National Institute of Agro Environmental Sciences, 13, 1 - 100.

Sharkey, M. J., Laurenne, N. M., Quicke, D. L. J., Sharanowski, B. & Murray, D. (2006) Revision of the Agathidinae (Hymenoptera: Braconidae) with comparisons of static and dynamic alignments. Cladistics, 22, 546 - 567.

Sharkey, M. J., Yu, D. S., Noort, S., Seltmann, K. & Penev, L. (2009) Revision of the Oriental genera of Agathidinae (Hymenoptera, Braconidae) with an emphasis on Thailand including interactive keys to genera published in three different formats. ZooKeys, 21, 19 - 54.

Shenefelt, R. D. (1970 b) Braconidae 3. Agathidinae. In: J. van der Vecht & Shenefelt, R. D. (Eds) Hymenopterorum Catalogus (nova editio). Dr W. Junk, Gravenhage, pp. 307 - 428.

Simbolotti, G. & Achterberg, C. van (1990) Revision of the Euagathis species (Hymenoptera: Braconidae: Bassinae) from Sulawesi. Zoologische Verhandelingen, 256, 1 - 86.

Simbolotti, G. & Achterberg, C. van (1995) Revision of the Euagathis species (Hymenoptera: Braconidae: Bassinae) from the Sunda Islands. Zoologische Verhandelingen, 293 (1994), 1 - 62.

Szepligeti, G. V. (1900) Braconiden aus New-Guinea in der Sammlung des Ungarischen National Museums. Termeszetrajzi Fuzetek, 23, 49 - 65.

Viereck, H. L. (1914) Type species of the genera of ichneumon flies. Bulletin of the United States National Museum, 83, 1 - 186.

Yu, D. S., Achterberg, C. van & Horstmann, K. (2005) World Ichneumonoidea 2004. Taxonomy, Biology, Morphology and Distribution. CD / DVD. Taxapad, Vancouver, Canada.

Figures

FIGURE 2. Agathidinae leg characters: A, Biroia sp., fore tarsal claw cleft (arrowed), base non – pectinate; B, Braunsia sp., fore tarsal claw simple, non – cleft, basal lobe quadrate, non – pectinate; C, Cremnops sp., fore tarsal claw cleft, base pectinate (arrowed); D, Braunsia sp., mid tibial preapical spines (circled); E, Coccygidium sp., fore tibial spur long, sinuate and aristate (arrowed); F, Amputostypos sp., fore tibial spur short, non – sinuate and non – aristate (arrowed); G, Disophrys sp., posterior view of metasoma, showing paired longitudinal carinae on ventral surface of hind trochantellus (arrowed). Scale lines, A, B and C = 0.05 mm; D, E and F = 0.1 mm; G = 1 mm.

FIGURE 3. Agathidinae, dorsal mesoscutum and head: A, Therophilus sp., notauli absent; B, Disophrys sp., notauli present and scrobiculate (small arrow), lateral carinae of frons present (large arrow). Agathidinae lateral metasoma: C, Lytopylus rufipes; D, Therophilus sp. Scale lines = 0.5 mm.

FIGURE 6. Agathidinae anterior head view: A, Baeognatha sp.; B, Biroia sp., paired carinae present on inter – antennal region. Scale lines = 0.5 mm.

FIGURE 10. Lateral and dorsal habitus of Agathidinae spp.: A, Disophrys sp.; B, D. leaena (Turner), exhibiting BROW (see text) mimicry complex colour pattern; C, Euagathis sp.; D, Amputostypos sp. Scale lines = 1 mm.