Cotesia Cameron 1891

Fagan-Jeffries, Erinn P. & Austin, Andrew D., 2020, Synopsis of the parasitoid wasp genus Cotesia Cameron, 1891 (Hymenoptera: Braconidae: Microgastrinae) in Australia, with the description of seven new species, European Journal of Taxonomy 667 (667), pp. 1-70 : 4-12

publication ID

https://doi.org/ 10.5852/ejt.2020.667

publication LSID

lsid:zoobank.org:pub:59113117-7A31-4969-BA24-4E8E45EBF24A

persistent identifier

https://treatment.plazi.org/id/03EE8792-C418-383B-D067-F89182762844

treatment provided by

Valdenar

scientific name

Cotesia Cameron 1891
status

 

Genus Cotesia Cameron 1891 View in CoL View at ENA

Type species

Cotesia flavipes Cameron, 1891: 185 View in CoL . For a complete list of synonyms and bibliography, see Fernández- Triana et al. (2020).

Comments

Cotesia is one of the largest genera of Microgastrinae and was previously treated as the glomeratus group of Apanteles sensu lato (s.l.). A detailed description of the genus can be found in Mason (1981), whilst supplementary notes, a discussion of putative relationships and a list of world species can be found in Fernandez-Triana et al. (2020). Members of the genus can be diagnosed by the absence of a fore wing areolet, possessing a short inflexible hypopygium and a short ovipositor, T1 generally parallelsided or broadening posteriorly (occasionally in the Australian fauna with T1 narrowing posteriorly but never to the extent as in Glyptapanteles ) and T2 normally broad and rectangular. Often species have the propodeum with a medial carina, and the propodeum, T1 and T2 coarsely sculptured.

Host information for Australian species of Cotesia

In Australia, species of Cotesia are known to parasitise at least nine different lepidopteran families ( Table 1), with some species appearing highly specialised on individual host species or genera, whilst others (e.g., C. ruficrus ) are recorded from numerous genera within a single family. The host information presented below, and in the following key, are restricted to records from Australia; for extra-limital host records see references listed under the treatment of each species.

Key to the described species of Cotesia View in CoL in Australia and Papua New Guinea

This key is based on adult females and should be treated with some caution due to the variable nature of some characters in Cotesia View in CoL , and the limited number of specimens available for some species during the construction of the key. Wherever possible, morphological identification should be supported by COI barcoding or host information.

1. T1 evenly broadening towards posterior margin ( Fig. 2A View Fig )................................................................2

– T1 mostly parallel sided or barrel shaped ( Fig. 2C View Fig ), in some species broadening on anterior 0.6–0.7 and then curving inwards to meet T2 ( Fig. 2B View Fig )...............................................................................10

2. Scutellar disk with large, strong circular punctures ( Fig. 3A View Fig ).......................................................3 – Scutellar disk smooth or with small punctures associated with setae ( Fig. 3B View Fig ).............................4

3. T3 with only a single row of setae, often in posterior half ( Fig. 4A View Fig ) often row of setae is irregular or undulating [gregarious parasitoid of noctuid species]...................... C. ruficrus ( Haliday, 1834) View in CoL

– T3 with multiple rows of setae, particularly visible at lateral edges ( Fig. 4B View Fig ) [solitary parasitoid of Plutella xylostella View in CoL ]............................................................................... C. vestalis ( Haliday, 1834) View in CoL

4. Mesosoma dorsoventrally flattened, in lateral view its length more than 2.0 × its height ( Fig. 5A View Fig ) [scutellar disk completely smooth, no small punctures, anteromesoscutum punctures widely spaced (distance between punctures sometimes greater than diameter of punctures)].................5

– Mesosoma not dorsoventrally flattened, in lateral view its length less than 2.0 × its height ( Fig. 5B View Fig ) [scutellar disk with at least some micropunctures associated with setae]..........................6

5. Face projection between base of antennae slightly rounded, with smooth margin ( Fig. 6C View Fig )......... ................................................................................................................. C. flavipes Cameron 1981 View in CoL *

– Face projection between base of antennae less rounded, with margin appearing almost tri-lobed under high magnification ( Fig. 6 View Fig A–B)....................................................... C. nonagriae ( Olliff, 1893) View in CoL *

6. Hind coxa and metasoma significantly paler than mesosoma, dorsal metasoma light brown to yellow ( Fig. 28 View Fig A–B) [parasitoid of the native butterfly Ogyris zosine Hewitson, 1853 View in CoL ].................................................................................................. C. rufiventris ( Bingham, 1906) View in CoL

– Hind coxa and metasoma as dark or only slightly paler than mesosoma. Dorsal metasoma dark....7

7. Ocelli small, OOL/posterior ocellus diameter ratio> 2.5 ( Fig. 7A View Fig ) [dorsal head smooth and polished with sparse setae, scutum punctate, propodeum strongly sculptured, T2 mostly smooth with some striate sculpturing].............................................................................. C. ocellata sp. nov.

– Ocelli normal sized, OOL/posterior ocellus diameter <2.4 ( Fig. 7B View Fig )............................................8

8. Fore wing vein r shorter than 2RS [anteromesoscutum very strongly punctate reticulate along notauli, much smoother in centre and lateral areas, gregarious parasitoid of Agrotis munda (Walker,1857) View in CoL ].. ............................................................................................................. C. radiantis (Wilkinson, 1929) View in CoL

– Fore wing vein r normally longer than, occasionally of similar length, to 2RS [anteromesoscutum punctate to punctate reticulate, slightly stronger along lines of notauli and smoother in centre and lateral areas].......................................................................................................................................9

9. Distal quarter of hind tibia darkened, including in lateral view [scutellum sometimes with small posteromedian band of rugosity, parasitoid of the introduced Pieris rapae ( Linnaeus, 1758) View in CoL in Australia and therefore associated with agricultural crops and urban gardens]............................... ........................................................................................................ C. rubecula ( Marshall, 1885) View in CoL

– Hind tibia with only a very small darkened patch, mainly in dorsal view [scutellum without posteromedian band of rugosity; parasitoid of the native Uraba lugens Walker, 1866 ] ................................................................................................ C. urabae Austin & Allen, 1989 View in CoL

10. Fore wing vein 2RS extending past junction with r, creating a ‘stub’ ( Fig. 23A View Fig ) [ r shorter than or approximately equal length of 2RS, T1 mostly parallel sided, broadening on anterior 0.6–0.7 and then curving inwards to meet T2; Fig 23B View Fig ]............................................ C. philoeampa ( Cameron, 1911)

– Fore wing 2RS not creating a ‘stub’ by extending slightly past junction [vein r equal in length or longer than 2RS]..........................................................................................................................................11

11. Anteromesoscutum relatively smooth, slightly punctate or punctulate, only generally sparse, small punctures ( Fig. 8A View Fig )................................................................................................................12

– Anteromesoscutum densely sculptured, strongly and coarsely punctate or punctate reticulate ( Fig. 8B View Fig )...........................................................................................................................................14

12. T3 densely setose for all of length............................................................ C. kazak (Telenga, 1949) View in CoL – T3 only sparsly setose, mostly in posterior one-third...................................................................13

13. Ventral hypopygium deeply emarginate ( Fig. 18C View Fig ) [gregarious parasitoid of the introduced Pieris rapae ( Linnaeus, 1758) View in CoL ]....................................................................... C. glomerata ( Linnaeus, 1758) View in CoL

– Ventral hypopygium not emarginate [gregarious parasitoid of the native Mnesampela privata Guenée, 1858 View in CoL on Eucalyptus View in CoL spp.].......................................................... C. geometricae Austin, 2000 View in CoL

14. T3 pale ( Figs 16A View Fig , 25A View Fig )................................................................................................................15 – T3 mostly dark or dark with pale lateral areas........................................................................16

15. T1–2 mostly pale, antennae pale [introduced into Papua New Guinea, parasitoid of the introduced Erionota thrax (Linnaeus, 1767) View in CoL ]..................................................... C. erionotae (Wilkinson, 1928) View in CoL

– T1–2 mostly dark, antennae dark [ Australia, parasitoid of the native Candalides delospila (Waterhouse, 1903) ]............................................................................................ C. reidarum sp. nov.

16. Scutellum with small posteromedian band of rugosity ( Fig. 9A View Fig )........................................................ ................................................................................. C. sp. nr icipe Fernández-Triana & Fiaboe, 2017 – Scutellum without small posteromedian band of rugosity ( Fig. 9B View Fig )............................................... 17

17. Scutellar disk with very strong, distinct punctures scattered over whole area [anteromesoscutum, propodeum and T1–2 strongly sculptured, T3 densely setose in posterior two-thirds]................... ............................................................................................................................. C. tjapekki sp. nov.

– Scutellar disk smooth, or with only shallow punctures or dents normally associated with setae.......18

18. T3 with sparse setae only in posterior half [gregarious parasitoid of Delias aganippe (Donovan, 1805) View in CoL and D. argenthona Fabricius, 1793 View in CoL ]............................................. C. deliadis ( Bingham, 1906) View in CoL – T3 with sparse or dense setae over all or at least posterior two-thirds of tergite...............................19

19. T2 ovoid, occasionally semicircle shaped, with very strong, wide crenulate border, T2 often with large punctures on most of tergite ( Fig. 10 View Fig A–B)...............................................................20

– T2 semicircle shaped or trapezoid, border with T3 smoothly indented ( Fig. 10D View Fig ) or occasionally with fine shallow crenulate border ( Fig. 10C View Fig ), T2 often mostly smooth, with shallow and sparse punctures limited to the margins....................................................................................................21

20. Scutoscutellar sulcus with approximately 6–8 large pits [parasitoid of Anthela ocellata (Walker, 1855) View in CoL ]................................................................................................... C. anthelae (Wilkinson, 1928) View in CoL

– Scutoscutellar sulcus with approximately 9–11 pits [gregarious parasitoid of Anthela connexa (Walker, 1855) View in CoL ] ........................................................................................... C. wonboynensis sp. nov.

21. Fore wing vein r subtly curved ( Fig. 11B View Fig ) [T1–2 mostly smooth, gregarious parasitoid of Epicoma contristis Hübner, 1823 View in CoL ] ......................................................................................... C. scripta sp. nov. – Fore wing vein r straight ( Fig. 11A View Fig , C–D)......................................................................................22

22. Antennal flagellomere 14 length/width <1.5 (T1–2 mostly smooth)...................... C. lasallei sp. nov. – Antennal flagellomere 14 length/width> 2......................................................................................23

23. Scutellar sulcus generally with eight very strong, large punctures, anteromesoscutum with reticulate rugose sculpturing medially ( Fig. 12A View Fig ) [gregarious parasitoid of Catopsilia gorgonphone (Boisduval, 1836) ]................................................................................................................... C. medusae sp. nov.

– Scutellar sulcus generally with more than eight small, irregular punctures, anteromesoscutum punctate medially, with smooth spaces visible between punctures ( Fig. 12B View Fig ) [gregarious parasitoid of Opodipthera eucalypti (Scott, 1864) ]........................................ C. australiensis ( Ashmead, 1900) View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Braconidae

Loc

Cotesia Cameron 1891

Fagan-Jeffries, Erinn P. & Austin, Andrew D. 2020
2020
Loc

Cotesia flavipes

Cameron P. 1891: 185
1891
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