Chrysothyridia invertalis Snellen
- Family: Crambidae
- Subfamily: Spilomelinae
- Tribe: Margaroniini
- Genus: Chrysothyridia
- Distribution: Burma, W. Malaysia, Sumatra, Kalimantan Timur, PNG (Trobriand Is), Bismarck Arch. (Admiralty Is.), Irian Jaya (Fergusson Is.); Lowland primary forest <600m. Range overlaps with<i> C. triangulifera</i> Munroe q.v.
- Habitat: Confirmed distrib, Sabah, PNG, Australia (Q)
- Wing Length: 13mm
Taxonomy
The male holotype of Gonocausta invertalis Snellen 1876 [1877b]: 78, pl. 6 fig. 4 from the Philippines? is lost. The sp. was re-described by Munroe 1967: 1104-1110, using Philippine material.
It is the TS of Chrysothyridia Munroe, 1967.
Description
Often smaller and differs in fasciation from C. triangulifera Munroe, 1967. It has two large fenestrae on FW and a scatter of smaller ones on the HW. Occasionally there is a violet sheen near the wing margins. The underside is cream shading to brown to the margins. Male antennae have group of curled scales close to the base. Females have larger fenestrae on HW and a pale upperside to abdomen. Females have larger fenestrae on HW and a pale upperside to abdomen. It is distinguishable by the pale preapical patch being nearly rectangular not roughly triangular (Munroe, 1967) but Munroe’s simple key Munroe (1967: 1106) does not fit most morphotypes mentioned here. It is said to be best distinguished by genitalia (RTS, 1994: 184-185). Munroe (1967, Figs 5 & 6, 6& 7.), illustrates the male and female genitalia. More morphotypes with wing patterns midway between C. invertalis and C. triangulifera have been seen. See Chrysothyridia sp. 1. & 2
References
- Snellen, P.C.T. (1876 [1877b]) Lepidoptera op Sumatra verzameld, voornamelijk in Atchin, door J.J. Korndörffer, Kapitein 1ste ld., oud-kommandant van het detachement Mariniers in Atchin, met beschrijving van eenige nieuwe soorten, Tijdschr. v. Ent., 20: 65-79, pls. 5,6. [in Dutch]
- Munroe, E. (1967) A new genus and a new species of pyraustinae (Lepidoptera: Pyralidae), Can. Ent. 99 (10): 1104-1110, figs 3,4,6,8.
- [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. 51 text figs, 32 pls.