Published September 23, 2020 | Version v1
Taxonomic treatment Open

Astymachus felix Singh and Hayat

Description

4. Astymachus felix Singh and Hayat

(Figure 2e)

Astymachus felix Singh and Hayat, 2005: 62 64. Holotype ♀, India, FRID, not examined. Astymachus japonicus Howard; Fatima and Shafee 1994: 117. Misidentification.

Diagnosis. Female. Length, including ovipositor, 1.25 1.45 mm. Body generally yellow, frons suffused pale brown anterior to median ocellus, gena dusky, antenna brown; fore wing generally suffused pale brown with a small, more strongly infuscate area on and below marginal vein and a slightly darker elongate streak parallel to posterior margin proximally; head about 1.8× as long as eye; palp formula 4 3; antenna with F1 F5 strongly transverse, anneliform; linear sensilla only on F6; clava entire; scutellum with about 16 18 setae; wings not shortened, fore wing about 3.3× as long as wide, reaching well past cercal plates; marginal vein (Figure 2e) not quite reaching anterior wing margin and about as long as stigmal vein; discal setae (Figure 2e) below marginal vein about as long as distance between them or at least 4× as long as diameter of socket; ovipositor about 2.6× mid tibia and 2.4× gonostylus. Male. Length 0.87 1.17 mm. Similar to female; antenna with F1 subquadrate, F2 F5 strongly transverse, subequal, F6 larger, subquadrate.

Biology. Unknown.

Distribution. India (Assam, Manipur, Uttar Pradesh) (Singh and Hayat 2005).

Material examined. None.

Comments. Females of this species can be recognised by the relatively long setae on the wing disc. It is the only species known where the setae are as long as the distance between the sockets.

Notes

Published as part of Noyes, John S. & Higashiura, Yoshimitsu, 2020, The species of Astymachus Howard (Hymenoptera: Encyrtidae) ı potentially important parasitoids of Aclerdidae (Hemiptera: Coccoidea) associated with grasses (Poaceae) ı with descriptions of three new species, pp. 665-679 in Journal of Natural History 54 (9) on pages 670-671, DOI: 10.1080/00222933.2020.1747654, http://zenodo.org/record/4290415

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Linked records

Additional details

Biodiversity

Collection code
FRID
Family
Encyrtidae
Genus
Astymachus
Kingdom
Animalia
Order
Hymenoptera
Phylum
Arthropoda
Scientific name authorship
Singh and Hayat
Species
felix
Taxon rank
species
Type status
holotype

References

  • Singh S, Hayat M. 2005. Description of three new and record of two known species of Encyrtidae (Hymenoptera: Chalcidoidea) from northeast India. Entomon. 30 (1): 57 - 66.
  • Fatima A, Shafee SA. 1994. Studies on the taxonomy of Indian encyrtids (Hymenoptera: Encyrtidae). Aligarh Muslim Univ Publ, Zool Ser Indian Insect Types. 15: 141.