Valid Names Results
Tanyscelis Hardy & Gullan, 2010 (
Eriococcidae)
Nomenclatural History
- Tanyscelis
Hardy & Gullan
2010: 34-35.
Type species: Opisthoscelis pisiformis Froggatt
.
accepted valid name
Remarks
- Systematics: Adult male antennae are 9-segmented, whereas the antennae of Opisthoscelis have 10 segments. In addition, the abdomen of adult male Tanyscelis species is attenuated, becoming very narrow near apex, and they lack glandular pouches, whereas the abdomen of adult male Opisthoscelis species is not attenuated and they have a pair of glandular pouches (Hardy & Gullan 2010). Thus, the detailed description of adult male Opisthoscelis spp. by Theron (1968), based on specimens of two unidentified species collected from Keith, South Australia, actually refers to species of Tanyscelis. (Hodgson, 2020)
- Structure: Galls on leaves and stems, each either globular, hemispherical, conical mammiform or thorn-like, never pit-like; with orifice usually slit-like, sometimes circular or oblong; if galls on leaves, orifice on either abaxial or adaxial surface, depending on species. Surface often difficult to determine in mature isobilateral leaves and galls typically opening on same surface on any one leaf. Female attached by moutnparts to internal gall wall opposite to openings, with long hind legs projecting forwards over body or towards gall orifice; body of female fills only part of gall cavity in some species dorsum aften covered with shite powdery wax. Body outline ovate to turbinate; abdomen tapered. Adult male antenna 9-segmented; abdomen tapered, elongate in some species. First-instar nymph anterior margin of head incised at midline. Each spiracle with one trilocular pore next to opening. The known first-instar nymphs of Opisthoscelis share similar traits.
- General Remarks: Detailed description of gall and adult female in Hardy & Gullan, 2010. Detailed description of adult male given in Theron (1968) based on specimens of two unidentified species collected from Keith, South Australia.
Keys
- Hodgso2020: pp.19-22
(
Adult (M)
)
[Neococcoid higher taxa]
- HardyGu2010: pp.8
(
Adult (F)
)
[Key to adult females of species of Opisthoscelis and Tanyscelis]
Associated References
12 Species
