The Acentropinae (Lepidoptera: Pyraloidea: Crambidae) of Africa Author Agassiz, David J. L. The Natural History Museum, London SW 7 5 BD D.Agassiz@nhm.ac.uk text Zootaxa 2012 2012-09-21 3494 1 73 journal article 10.11646/zootaxa.3494.1.1 17277230-72bb-4500-8e53-1bd8e3ca6d74 1175­5334 6380783 E31EF0DC-825E-4D60-8AED-3127019CF8F0 Elophila obliteralis Walker Isopteryx? obliteralis Walker, 1859: 399 . Hydrocampa proprialis Fernald, 1888: 37 . Type locality: U.S.A. Described by Munroe (1972) and Shaffer (1968) . Imago (Figs. 24, 25): Male wingspan 10–13mm . Head dark fuscous; labial palpus tufted, porrect, pale fuscous; antenna dull fuscous. Thorax dark fuscous. Forewing predominantly dark fuscous; pale subbasal fascia and a postmedian fascia mixed whitish, orange and fuscous; discal spot white, ringed dark fuscous; termen chequered white and dark fuscous. Hindwing dark fuscous; an orange tornal spot preceded by whitish scales. Legs fuscous, darker on joints. Abdomen dark fuscous, paler on edge of each segment. Male genitalia (Fig. 96): Uncus long, spatulate, slightly broader beneath apex, gnathos narrow 2/3 length of uncus, bearing a series of spines on the dorsal edge, valva simple; aedeagus fairly broad, bent near apex and bearing a thick cornutus, the apex being surrounded with spines. Female genitalia (Fig. 146): Ostium wide, ostial chamber narrowing and then broadening into corpus bursae which bears sclerotised patches. Tympanal organs: Venulae widely separated, slightly divergent. Diagnosis: Distinguished by its lack of crosslines on the wings. Biology: Larva on a variety of aquatic plants, in the USA recorded from Nymphaea , Potamogeton , Lemna etc. Distribution: South Africa , presumed to have been introduced, either accidentally or deliberately, from North America. Material examined: SOUTH AFRICA : 7♂ 1♀ Gauteng : Rietondale 25˚ 45´S 28˚ 12´E associated with Azolla filiculoides and Eichhornia crassipes M.P. Hill, 1995, Transvaal; KNP Skukuza 25˚ 00´S 31˚ 35´E xii. 1993 Krüger & Dunning; BOTSWANA , 1♀ Mashati Tuli G.R. Limpopo River , 534m ( AJK ) .