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Key to Afrotropical species of Amiseginae

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera;  Superfamily: Chrysidoidea; Family: Chrysididae; Subfamily: Amiseginae)

ClassificationIdentification keys


 

1A

 Wings well developed2 (Anachrysis Krombein)

 

1B

Wingless or wings small and subequal in size to tegula 3


 

2A

Pronotum without sublateral carina; male clypeus apically depressed, laterally reflexed outward as clear lamella; apex of T-II medially emarginated … Anachrysis paradoxa Krombein, 1986

 

2B

Pronotum with comma-shaped sublateral carinae; male clypeus normal; apex of T-II entire … Anachrysis spanglerorum Krombein, 1994


 

3A

Abdomen petiolate, petiole formed by constriction of anterior one-quarter to one-sixth of segment I; both sexes wingless 4

 

3B

Abdomen sessile; development of wings varies … 6


 

4A

Abdominal petiole one-sixth as long as whole segment I; without macrochaetae on head and thorax; pronotum not unusually thickened posteriorly; metanotum with 2 decumbent submedial teeth on posterior margin … Leptosega gracilis Krombein, 1984


 

4B

Abdominal petiole one-quarter as long as segment I; with macrochaetae on head and thorax; pronotal posterior margin thickened; metanotum simple posteriorly 5 (Afrosega Krombein)


 

5A

Macrochaetae present on the metasoma; scapal basin with course irregular sculpturing … Afrosega petiolata Krombein, 1983


 

5B

Macrochaetae absent on the metasoma; scapal basin finely sculptured Afrosega capensis Krombein, 1983


 

6A

Tarsal claws with small perpendicular submedial tooth … 7 (Alieniscus Benoit)

 

6B

Tarsal claws edentate … 8


 

7A

Scutellum, propodeum and metanotum with longitudinal rugae; light red in colour … Alieniscus arnoldi Benoit, 1951

 

7B

Scutellum, propodeum and metanotum with punctures; dark red in colour … Alieniscus mutilloides Krombein, 1957


 

8A

Flagellum filiform; pronotal length medially less than 1.5x metanotal length; scapal basin with numerous arched transverse ridges (females) … Obenbergerella aenigmatica (Bridwell, 1919)

 

8B

Flagellum short and fusiform; pronotal length medially 2.0-2.5 times metanotal length; scapal basin with a few strong transverse tugae … 9 (Reidia Krombein)


 

9A

Anterior third of first metasomal tergum with delicate close transverse lineolations; frontal concavity of head with coarse sparse rugulae; posterior third of scutellum with close transverse rugulae; mesosoma light red … Reidia turneri Krombein, 1957

 

9B

Anterior third of first metasomal tergum with punctures; frontal concavity of head with finer arcuate rugulae; posterior half of scutellum with close transverse rugulae; mesosoma dark brown or black … 10


 

10A

Median pronotal length 0.7X greatest width and subequal to combined length of scutum and scutellum; pronotal disc medially smooth with longitudinal rugulae only present on extreme sides; metasomal tergum with sparse delicate punctures on anterior third … Reidia capensis Krombein, 1984


 

10B

Median pronotal length 0.9X greatest width and 1.2X as long as combined length of scutum and scutellum; pronotal disc medially with longitudinal ruguale; metasomal tergum with large close punctures on anterior third … Reidia natalensis Krombein, 1983


References

Kimsey, L.S. & Bohart, R.M. 1990. The Chrysidid wasps of the world. Oxford University Press, Oxford, 652 pp.

Krombein, K.V. 1983. Three New Egg Parasites of South African Walking Sticks (Hymenoptera: Chrysididae, Amiseginae). Journal of the Entomological Society of South Africa 46: 139-146.

Krombein, K.V. 1984. Two New Egg Parasites of South African walking sticks and notes on two previously described species (Hymenoptera: Chrysididae, Amiseginae). Journal of the Entomological Society of South Africa 47: 211-215.

Krombein, K.V. 1986. A remarkable new African amisegine wasp (Hymenoptera: Chrysididae: Amiseginae). Proceedings of the Entomological Society of Washington 88: 509-514.

Krombein, K.V. 1994. A new Anachrysis from South Africa (Hymenoptera: Chrysididae: Amiseginae). Proceedings of the Entomological Society of Washington 96: 339-341.

Credits

Key development by Simon van Noort - modified from Kimsey & Bohart (1990). Photographs © Simon van Noort (Iziko Museums).


Web author Simon van Noort (Iziko South African Museum)

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