Beebea guglielmi Schaus,

Bernard Landry, 2016, Taxonomic revision of the Spilomelinae (Lepidoptera, Pyralidae s. l.) of the Galápagos Islands, Ecuador, Revue suisse de Zoologie 123 (2), pp. 315-399: 341

publication ID

http://doi.org/ 10.5281/zenodo.155309

publication LSID

lsid:zoobank.org:pub:9ED8B8D5-ADA1-4B53-A1D3-0F75F889A179

persistent identifier

http://treatment.plazi.org/id/03EA87B1-FFA6-8235-7FFC-FEDBFEDAFA42

treatment provided by

Plazi

scientific name

Beebea guglielmi Schaus
status

 

Key to the brown Galápagos species of Spilomelinae with darker brown markings, excluding Beebea guglielmi Schaus 

1 Forewing ground colour golden brown, with distinct darker brown markings as complete basal, antemedial, and postmedial fasciae, and orbicular and reniform stigmata at base and end of cell respectively; hindwing linear markings also distinct, without other spots; wingspan usually above 22.5 mm (20-26 mm); male antenna evenly thin ( Fig. 48View Figs 41 - 48).................................................................................................................. Psara chathamalis (Schaus) 

1’ Forewing ground colour greyish brown to dark brown, with darker brown markings often indistinct, without apparent basal line, usually with only reniform stigma apparent; hindwing markings as poorly defined fascia(e), with or without antemedian spot or short dash, or two spots; wingspan below 22.5 mm; male antenna thickened at base in one species.................................................................................................................................................... 2

2 Forewing reniform stigma contrasting, comma shaped; hindwing with shorter scales of fringe dark greyish brown and longer scales white; wingspan 18-22 mm; male antenna thickened at base and hindwing anal sector enlarged ( Figs 49, 50View Figs 49 - 56)...................................................................................................... Rhectocraspeda periusalis (Walker) 

2’ Forewing reniform stigma more or less contrasting, rarely comma shaped in one species; hindwing never with longer scales of fringe white, although sometimes paler than basal scales; wingspan 16-22.5 mm; male antenna not thickened at base and hindwing anal sector not enlarged......................................................................................... 3

3 Wingspan 18-22.5 mm; forewing reniform stigma a small spot or short dash; hindwing with one small contrasting spot or short dash in cell ( Figs 20, 21View Figs 17 - 24) ...................................................... Herpetogramma phaeopteralis (Guenée) 

3’ Wingspan 15-20 mm; forewing reniform stigma large, variable, sometimes with paler centre or with second encircling ring; hindwing either with two clearly contrasting spots or an indistinct line ........................................ 4

4 Dark brown; forewing reniform stigma squarish, with paler centre; hindwing with indistinct fascia(e); termen with contrasting dark spots on veins of both wings; sexes dissimilar with male sporting distinctly elongate abdomen and forewing fovea ( Figs 44, 45View Figs 41 - 48) .......................................................................................... Penestola bufalis (Guenée) 

4’ Drab to dark greyish brown; forewing reniform stigma variable, often with thin dark line encircling other marking, ‘U’ shaped to ‘8’ shaped; hindwing with two distinct spots in cell and postmedian fascia; termen with contrasting dark spots on veins of both wings sometimes slightly darker between veins; sexes not overly dissimilar in abdominal length ( Figs 69, 70View Figs 65 - 72)............................................................................................................. Udea galapagensis  sp. n.

Remarks: I have identified Galápagos specimens by comparing them with two syntypes from Cayenne, French Guiana and ‘Canad?’ without abdomen in the BMNH. The species was described from 15 specimens and I concur with Munroe (1995: 167) to refrain from designating a lectotype as better syntypes may turn up. The species is known as the Tropical sod webworm ( Heppner, 2003).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Pyralidae

Genus

Beebea