Hoploscopa bivialis Hampson
- Family: Crambidae
- Subfamily: Hoploscopinae
- Genus: Hoploscopa
- Distribution: W Malaysia, Sabah, Sarawak, Brunei.
- Habitat: Lowland to submontane primary forest; <1400m.
- Wing Length: 10.5mm
Taxonomy
The holotype of Pyralausta bivialis Hampson, 1913: 335, from Sarawak is in the BMNH.
It is the TS of Pyralausta Hampson, 1913: 334 which was tentatively placed in the Spilomelinae in the LepIndex and in the Pyraustinae in Globiz.
On the LepIndex card for the genus Pyralausta Shaffer notes ‘possibly Syncrotaulella’ [sic] - did he mean Syncrotaula (a junior subjective syn. of Hoploscopa Meyrick 1886: 267 (Nuss, 1998))?
The sp. is somewhat aberrant for a spilomeline having specialised long, porrect palps. Here it is temporarily placed with and should probably be formally transferred to the Hoploscopinae and the genus Hoploscopa Meyrick, 1886: 267-268
- = Eudorina Snellen 1895: 116 syn. n. (Nuss 1998: 500-5001)
Description
A dark brown sp. with darker marginal lines. Two almost straight white lines cross the FW in the postmedian and submedian positions. In a few specimens the outer line curves inwards to a greater extent than in the holotype [illustrated]. The HW is a uniform pale brownish grey except for a paler, curved, submedian band. Compare with Pyralausta? sp. 1 and Syncrotaula sp. 1 (RTS, 1994 :170, pl. 28, fig. 19). Two or three similar spp. occur in New Guinea.
References
- Snellen, P. C. T. (1895) Aanteekeningen over Pyraliden. Tijdschr. v. Ent., 38: 103-161, pl. 5, 6.
- Meyrick, E. (1896) VIII Descriptions of Lepidoptera from the South Pacific. Trans. Ent. Soc. Lond. 1896: 189-296.
- [RTS] Robinson, G.S., Tuck, K.R. & Shaffer, M. (1994) A Field Guide to the Smaller Moths of South-East Asia, Malaysian Nature Society Kuala Lumpur & Natural History Museum, London, 311 pp.
- Nuss, M. (1998) The Scopariinae and Heliothelinae stat. rev. (Lepidoptera: Pyraloidea, Crambidae) of the Oriental Region - a revisional synopsis with descriptions of new species from the Philippines and Sumatra. Nachr. des entomol. Ver. Apollo, Frankfurt a. M. suppl. 17: 475–528.
- Hampson, G.F. (1913a) XXXVIII. Descriptions of new species of Pyralidae of the subfamily Pyraustinae (continued). Ann. Mag. Nat. Hist., Vol. 11, Ser. 8, (63): 322-342.