Zamarada eurygnathus Fletcher, 1974

Sciarretta, Andrea & Hausmann, Axel, 2020, The Geometridae of Ethiopia III: genus Zamarada (Lepidoptera: Geometridae Ennominae, Cassymini), Zootaxa 4894 (3), pp. 301-328 : 304-305

Zamarada eurygnathus Fletcher, 1974

( Figs 3, 4 , 35 , 55 )

Zamarada eurygnathus Fletcher, 1974: 32 , text-figs 21,22, pl. 96 fig. 852. Locus typicus: Kenya: Nairobi, Ngong, vii.1954 (Fowler & Coulson) (Holotype Ƌ in NHMUK).

Examined material. 1Ƌ 3♀: ÄTHIOPIEN, Arba Minch, Gamo Gofa Region, 06°0’N 37°33’E, 1400 m, 14.4– 2.5.2001, leg. G. Riedel & R. Beck ( ZSM G 20599/ Ƌ / BC ZSM Lep 13775, failure); 2Ƌ 5♀: S. ETHIOPIA, Arba Minch, Reg. Omo, Prov. Gemu Gofa , 1350–1450m, 6°0′N 37°33′E 14.IV.–2.V.2001, leg. R. Beck, leg. G. Riedel ( ZSM G 20208 / ♀ / BC ZSM Lep 13776; BC ZSM Lep 13773); 1Ƌ 2♀: S. ETHIOPIA, Arba Minch, Reg. Omo, Prov. Gemu Gofa , 1350–1450m, 6°0′N 37°33′E, 24.V.–4.VI.1999, leg. Beck / Hiermeier ( ZSM G 20209 / ♀ / LEP-SS-00517); 1Ƌ: ÄTHIOPIEN, Arba Minch , Reg.Omo , Prov. Gemu Gofa , 06°00.196′N / 037°33.043′E, 3100m, 14.–23.V.1999, leg. R. Beck & M. Hiermeier ( ZSM G 20300 / Ƌ / LEP-SS-00518 failure) ; 1♀: ÄTHIOPIEN, Os-tafrikanischer Graben, Prov. Gamu Gofa, Arba Minch 12 km NNO, 1620 m, 06°08.311ʹN, 37°34.963ʹO, 22.v.2012, Dietl M. + S. & R. Beck ; 1♀: S ETHIOPIA SN, Jinga, Mago NP, mainroad 6km WSW Jinka, 1437m, 05°47‘35‘‘ N 36°28‘24‘‘E 24.II.2012 leg. Hacker & Schreier ( ZSM G 20808 / ♀); 1Ƌ: ÄTHIOPIEN, Reg.Sidamo / Oromia, Bale Mts. , Prov. Bale, Goba to Sof Omar, 1640 m, 06°58′N, 40°34′O, 12.v.2012, Dietl M. + S. & R Beck ( ƋBC ZSM Lep 109449) .

Description. Adult ♀ ( Fig. 4 ): forewing length 10–11 mm. Antennae filiform. Hyaline area of wings creamy, variably irrorated with yellowish-brown and dark brown; basal and medial fascia in fore- and hindwing poorly

defined; costa of forewing yellowish-brown, irrorated with black; discal spot on forewing grey, black-ringed; punctiform discal spot on hindwings black. Extended non-hyaline terminal area of fore- and hind wings grey, irrorated with brown and black scales between M1 and M3, proximally black-bordered.

Female genitalia ( Fig. 55 ). Antrum symmetrical, anterior part sclerotized, posterior margin deeply incised and medially dentate. Ductus seminalis dilated forming a globular sac. Corpus bursae ribbed in the proximal part, the single signum rounded with edges serrate.

Differential diagnosis. Female genitalia differ from those of the related Z. townsendi Fletcher, 1974 and Z. anacantha Fletcher, 1974 in the different shape of the posterior margin of ostium bursae.

Genetic data. BIN: BOLD:AAH8465 (n=3 from Ethiopia; maximum variation 0.4%). Nearest species: Z. cinnamomata Fletcher, 1978 (2.4%).

Distribution. Kenya, Tanzania, Uganda ( Fletcher 1974; Aarvik. & Bjørnstad 2007; De Prins & De Prins 2019). New for the fauna of Ethiopia.

Remarks. Some slight differences in male genitalia when compared with the figure in Fletcher (1974), supposedly based on the type material: Uncus longer, larger at base, gnathos scobinate and divided into two lobes, lateral cornutus of aedeagus not pointed, fulcrum not visible.

Figures

FIGURES 1–9. Adults of Ethiopian Zamarada species. Scale Bar—0.8 cm. In parantheses the ID-numbers of genitalia slides and/or DNA barcoding of the illustrated specimen are given. 1. Zamarada latilimbata Rebel, 1948 Ƌ (ZSM G 20588); 2. Zamarada latilimbata Rebel, 1948 ♀; 3. Zamarada eurygnathus Fletcher, 1974 Ƌ (ZSM G 20300); 4. Zamarada eurygnathus Fletcher, 1974 ♀ (BC ZSM Lep 13773); 5. Zamarada anacantha Fletcher, 1974 Ƌ (ZSM G 20203/BC ZSM Lep 13774); 6. Zamarada anacantha Fletcher, 1974 ♀; 7. Zamarada phaeozona Hampson, 1909 Ƌ (ZSM G 20350); 8. Zamarada phaeozona Hampson, 1909 ♀; 9. Zamarada mesotaenia Prout, 1931 Ƌ (ZSM G 20525/BC ZSM Lep 103759).

FIGURES 34–41. Male genitalia of Ethiopian Zamarada species. Scale Bar(s)—1 mm. In parantheses the ID-numbers of genitalia slides are given. 34. Zamarada latilimbata Rebel, 1948 (gen.prp. ZSM G 20318); 35. Zamarada eurygnathus Fletcher, 1974 (gen.prp. ZSM G 20599); 36. Zamarada anacantha Fletcher, 1974 (gen.prp. ZSM G 20203); 37. Zamarada phaeozona Hampson, 1909 (gen.prp. ZSM G 20348); 38. Zamarada mesotaenia Prout, 1931 (gen.prp. ZSM G 20525); 39. Zamarada deceptrix Warren, 1914 (gen.prp. ZSM G 20207); 40. Zamarada chrysothyra Hampson, 1909 (gen.prp. ZSM G 20301); 41. Zamarada secutaria (Guenée, 1858) (gen.prp. ZSM G 20316).

FIGURES 55–57. Female genitalia of Ethiopian Zamarada species. Scale Bar(s)—1 mm. In parantheses the ID-numbers of genitalia slides are given. 55. Zamarada eurygnathus Fletcher, 1974 (gen.prp. ZSM G 20209); 56. Zamarada chrysothyra Hampson, 1909 (gen.prp. ZSM G 20205); 57. Zamarada erugatoides sp.n. (gen.prp. ZSM G 20590).