Closterocerus purpureus (Howard)

Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 71

Closterocerus purpureus (Howard) comb. rev.

( Fig. 199 )

Necremnus purpureus Howard, 1897:164-165 . Holotype female, type locality: West Indies , Grenada, NH M UK, examined.

Closterocerus purpureus (Howard) ; Waterston (1915:330).

Chrysonotomyia purpurea (Howard) ; Bouček (1977:7).

Chrysonotomyia (Achrysocharella) purpurea (Howard) ; De Santis (1983:22).

Chrysonotomyia purpureus (Howard) ; LaSalle & Schauff (1992:9).

This species belongs to Closterocerus s.str., but it is difficult to establish its species identity because the head, including the antennae, are missing. Especially the antennae are very important for the identification of Closterocerus species, but to a certain extent also the head, e.g. the sculpture on, and size of vertex, are used to separate species. Therefore it cannot be included in the key.

The holotype female ( Fig. 199 ) lacks a carina along anterior margin of pronotum. Mesoscutum and mesoscutellum have quite strong reticulation; mesoscutum is metallic purple and mesoscutellum metallic purple with median part golden-green; midlobe of mesoscutum has short setae of an uncertain number. Legs: coxae difficult to see; fore and mid femora predominantly white, hind femur dark brown with apex white; tibiae white; tarsi white. Fore wing hyaline with parts below stigmal vein and along apical margin infuscate; speculum is closed. This combination of features does not match any of the included species and I therefore keep C. purpureus as a valid species of Closterocerus .

Hosts. Unknown.

Distribution. Grenada ( Howard 1897).

Material examined. Type material. Holotype ♀ of N. purpureus (B.M.Type Hym. No. 5.1299).

Figures

Figs 195–199. Closterocerus spp. C. byrrus, holotype ♀ – (195) habitus dorsal view; (196) habitus lateral view. C. albicrus, holotype ♀ – (197) habitus dorsal view; (198) habitus lateral view. C. purpureus, holotype ♀ – (199) habitus dorsal view (excluding head). The image of C. purpureus (type no. 5.1299) are ©The Trustees of the Natural History Museum, London, and made available to you under Creative Commons License 4.0 (https://creativecommons.org/licenses/by/4.0/).