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Red Scale Parasitoid

Scientific Name
Comperiella bifasciata
Scientific Author
Howard, 1906
Taxonomy
(Hymenoptera: Encyrtidae: Encyrtinae)
Pest Status
0 Unknown
0 Unknown
Status
NZ - Exotic
NZ - Exotic
Reliability
High
High
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Diagnostic Notes
Female

Fore wing with two longitudinal fuscous streaks, both extending to apical margin of wing; longitudinal fuscous streaks divergent, seperated basally from median infuscated area on wing disc by narrow hyaline space; antenna with flagellum broadened and flatterned; funicle and club segments all transverse; antennal club as long as entire funicle; scape subtriangular with the antero-dorsal more or less flattened margin short, less than 0.50 the rest of dorsal margin and distinctly shorter than dorsal length of pedicel; ventral margin of pedicel convex; lateral ocelli seperated from each other by about twice their own diameter; median longitudinal dark area on frontovertex wider than each of the two lateral white bands; mesoscutum, except sides of disc, dark-metallic-green with a median longitudinal cupreous band extending over entire length of disc; tibial spur of middle leg distinctly longer than basitarsus.

Larvae

First instar larva is caudate, vesiculate or encyrtiform varying from spherical to elongate; tail may be bifurcate; vary from 10- to 14-segmented and may or may not have functioning spiracles. Caudate larvae are frequently found in species that parasitize Coccidae. Vesiculate larvae have a caudal vesicle, and may also have a ring of fleshy protuberances around each of the first 12 segments. Encyrtiform larvae are more or less hymenopteriform, but they are metapneustic; generally 10- or 11-segmented. Later instar larvae are more uniform in structure and sometimes enclosed in a sheath which has anastomozed with the tracheal system of the host (eg Encyrtus spp., Metaphycus spp.).

References

- Prinsloo, G.L. (1996). The genus Comperiella Howard (Hymenoptera: Encyrtidae) in southern Africa: parasitoids of armoured scale insects (Homoptera: Diaspididae). African Entomology, 4(2): 153-160.

- Hayat, M. (1977). Notes on Indian species of Comperiella (Hymenoptera: Encyrtidae). Oriental Insects, 11(2): 243-250.

- Howard, L.O. (1906). An interesting new genus and species of Encyrtidae. Entomological News, 17(4):122.

- Evans, H.E. (1987). Order Hymenoptera. In: Stehr, F.W. (ed.), Immature Insects. Kendall/Hunt Publishing Co. Chapter 27, pp. 597-710.
More Information
Specimen Contact
MAF Plant Health & Environment Laboratory
Author
MAF Plant Health & Environment Laboratory
Created
19/10/2011 01:00 AEST
Last Updated
21/03/2014 01:58 AEST
Citation
MAF Plant Health & Environment Laboratory (2011) Red Scale Parasitoid (Comperiella bifasciata) Updated on 3/21/2014 1:58:09 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

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