Elydnodes griseata Behounek & Kononenko

Behounek, Gottfried & Kononenko, Vladimir, 2011, A review of the genera Elydnodes Hampson, 1913 and Antitrisuloides Holloway, 1985 with description of two new species (Lepidoptera, Noctuidae). Revision of Pantheinae, contribution III, Zootaxa 3108, pp. 41-52 : 44-45

Elydnodes griseata Behounek & Kononenko , sp. n.

( Figs. 7, 8 , 17 , 18 , 22 )

Material examined. Holotype: male, Thailand, Prov. Chumphon, Phato ca 40 km W, Lang Suan, 155m, 09˚46ʹ08ʹ N 098˚46ʹ93ʹ E, 4.xi.2007, leg. T.Ihle genit. prep. 2- 090311 VK (coll. AB, to be deposited in ZSM). Paratypes: 1 female, Thailand, Prov. Chumphon, Khuan 45 km SW, Lang Suan, 168m, 09˚46ʹ08ʹ N 098˚46ʹ93ʹ E, 18, 19.xi.2006, leg. T.Ihle, genit. prep. 2- 090311 VK (coll. AB); 1 male, Malaysia, Genting Tea Estate 2000’ W Pahang, Malaysia / Noctuidae Brit. Mus. Slide No 10194 male (coll. BMNH); 1 male, 1 female, Thailand, Kanchanaburi, Thong pha phum, 23.xii.2002, Natasuk (KU), 1 male, 1 female, Vietnam, Vinh Phu Prov., Thuong Cuu, 30 Km S of Thanh Son, 10-16.xi.1999 20˚59ʹN 105˚08ʹE. 300m, R. de Jong, at light VN 99-8 (MN, Leiden).

Diagnosis. Externally the new species looks intermediate between E. variegata and E. ornata . It can be recognized by yellow-brownish grey wing color, more brownish than in E. variegata and E. ornata , more smooth, not angled antemedial line, dark medial shadow, expressed in costal field, less angled than in E. ornata reniform and wide rounded extension of subterminal line; the area restricted by submedial line and extension of postmedial line suffused with whish scales. Hindwing much darker than those in E. variegata and E. ornata , with pale subanal dash. By male genitalia it is closer to E. ornata , but differs by longer narrow vinculum, longer valva and long, pointed harpe. Aedeagus much longer and thinner than in E. variegata and E. ornata , vesica with two basal diverticula and subapical one. Female genitalia differ from E. ornata by small cup-like with medially cut antrum, long membranous ductus bursae and much smaller rounded corpus bursae.

Description. Adult ( Figs. 7, 8 ). Wingspan: male 34–37 mm, female 39 mm. Head and thorax greyish-yellow; forewing color somewhat more greyish-brown than in E. variegata and E. ornata ; wing pattern more developed than in E. variegata , but more smooth than in E. ornata . Basal line as small dot in costal area; subbasal line complete, diffused, shadowed with dark reddish-brown; antemedial line thin, brown curved basally on Cu-trunk; not joined with submedial line on anal margin as in E. ornata ; orbicular distinct, elongate, formed by thin brown border like, shadowed by distinct medial shadow in costal area, joined with reniform by dark brown streak; medial shadow rather strong in costal area, traceable and diffused in medial field; reniform c-like, angled basally; postmedial line angled outward at vein M2, apical angle with oblique pale yellowish dash, contrasting with darker greyish-yellow costal area, followed from apex and surrounded with triangular brownish patch below; subterminal line, thin; sharply angled basally and strongly curved outward on veins Cu2-Cu3; veins in subterminal and terminal fields suffused with whitish; area between submarginal line and extension of subterminal line yellowish-grey, with reddish-brown dash and suffusion of whitish scales; terminal field pale brownish, with whitish veins and pale yellowish-grey subanal patch; cilia brownish, yellowish-white opposite veins. Hindwing yellowish-grey, darker than in E. variegata and E. ornata , with dark greyish suffusion in central part, yellowish costal and subanal parts. Cilia whitish-grey. Male genitalia ( Fig. 17 ). Abdomen: coremata present as paired brush in the base and unpaired brush on 7th segment of abdomen. ( Fig. 18 ). Tegument broad and high, shorter than vinculum; vinculum massive, narrow, much longer than in E. ornata ; uncus curved basally, cylindrical, longer than in E. ornata , with minute apical hook; scaphium slightly sclerotised in basal half; juxta small, plate-like, transtilla broad, valva with parallel margins slightly extended apically and oblique-rounded apically; costa broad; sacculus as long as half of valva; harpe rather large, directed longitudinally, tapered and pointed apically. Aedeagus long, thinner and longer than in E. ornata , with sclerotised plate of carina; vesica moderate, with two subbasal diverticula, one of them armed with minute granulate cornuti, and with one subapical divertilum covered with minute granulation. Female genitalia ( Fig. 24 ). Papillae anales quadrangular, apophyses anteriores and posteriores strong, almost equal in length, antrum small, cup-like, with triangular cut in middle; ductus bursae long, membranous; corpus bursae small rounded.

Etymology. The name refers to the more greyish forewing color, compared to E. variegata and E. ornata .

Distribution ( Fig. 28 ). North Vietnam, Thailand, Malaysia. Moths collected in November and December.

Figures

FIGURES 1 – 8. Elydnodes spp., adults. 1 – E. variegata, male, type, China (BMNH); 2 – Ditto, labels; 3 – E. variegata, male, Vietnam (GB); 4 – E. ornata, male, Philippines (ZFMK); 5 – E. ornata, male, holotype, Philippines (ZFMK); 6 – Ditto, labels. 7 – E. griseata sp. n., male, holotype, Thailand (AB); 8 – E. griseata sp. n., female, paratype, Thailand (AB).

FIGURES 15 – 17. Elydnodes spp., male genitalia. 15 – E. variegata, male, Vietnam, genit. Prep. 7369 GB (AB); 16 – E. ornata, male, Philippines, genit. Prep. 7369 GB (GB); 17 – E. griseata sp. n., male, holotype, genit. prep. 1 – 090311 VK, Thailand (AB).

FIGURES 18 – 20. Elydnodes, abdomen; Antitrisuloides spp., male genitalia. 18 – E. griseata sp. n., holotype, abdomen; 19 – A. catocalina, Thailand, genit. prep. 7394 GB (GB); 20 – A. siamensis sp. n., paartype, Thailand, genit. prep. 7395 GB (AB).

FIGURES 21 – 24. Elydnodes and Antitrisuloides spp., female genitalia. 21 – E. ornata, Philippines, genit. prep. 7664 GB (GB); 22 – E. griseata sp. n., paratype, Thailand, genit prep. 2 - 090311 VK (AB); 23 – A. catocalina, Laos, genit. prep. 7422 GB (AB); 24 – A. siamensis sp. n., paratype, Thailand, genit. prep. 7399 GB (AB).

FIGURES 25 – 30. Elydnodes and Antitrisuloides spp., distribution maps. 25 – Distribution area of the genera Elydnodes and Antitrisuloides; 26 – E. variegata; 27 – E. ornata; 28 – E. griseata sp. n.; 29 – A. catocalina; 30 – A. siamensis sp. n.