Dugdaleiella, Grehan & Mielke, 2018

Grehan, John R. & Mielke, Os. G. C., 2018, New species of Dugdaleiella, gen. nov., Kozloviella, gen. nov., and Pfitzneriella Viette from upper elevation Andes of Ecuador and Peru (Lepidoptera: Hepialidae), Zootaxa 4497 (1), pp. 1-28 : 19

Dugdaleiella gen. nov.

( Figs 8a, 8b, 8c, 8d, 9g, 9h , 10i , 14f , 15d, 16h, 16i, 16j , 25a, 25b )

Type species: Triodia monticola Maassen, 1890 , by present designation. Monotypic.

Diagnosis. The pale to indistinct white markings on a ground color of sooty greyish brown is distinct from the mottled grayish brown or yellowish brown tones of Pfitzneriella , and the yellowish orange color tone of Kozloviella gen. nov. The general wing shape similar to Pfitzneriella , contrasting with the narrower central region of wings in Kozloviella gen. nov. Genitalia with a distinctive spout-shaped apex to the fused cylindrical posterioventral pseudotegumen in contrast to the unfused condition of Pfitzneriella and the narrow medial bar in Kozloviella gen. n. The South American genera Druceiella (Grehan & Rawlins in press) and Andeabatis chiliensis ( Ureta, 1951) ( Nielsen & Robinson 1983) also have a cylindrical posterioventral pseudotegumen but lack the terminal spout of Dugdaleiella gen. n. The distally straight A vein of the FW separates Dugdaleiella gen. n. from Kozloviella gen. n. and Pfitzneriella while the strongly curved A and CuP of the HW in Dugdaleiella gen. n. is unique among Hepialidae we have examined.

Description. Male ( Figs 8a, 8b, 8c, 8d ): Wingspan 41–46 mm. Wings grayish brown with broken grayish white to white band of varying intensity extending along cell between 1A and CuA2 and transversely from CuA2 to near apex.

Head. Interocular-antennal scales present. Antenna filiform. Labial palpus with three palpomeres ( Figs 9g, 9h ).

Thorax. Scutum III free of scales other than posterior and medial regions, dorsally obscured by overlaying mesothorax scales. Venation hepialine ( Dumbleton 1966), A of FW curved basally, straight distally; A and CuP of HW strongly curved ( Fig. 10i ). Metatibial gland and androconia absent ( Fig. 14f ).

Abdomen. Tergites and sternites weakly sclerotized. Tergosternal connection with curved tergosternal bar, short lateral and dorsal brace, latter not fusing with anterior margin of tergum II, posterior edge of central region extends dorsally to fuse with anterior margin of tergum II. Tergal knob absent ( Fig. 15d ). Tergum II rectangular, anterior ridge unfused across median, strongly sclerotized, not fused with ascending tergal brace; lateral ridge strongly sclerotized ( Fig. 16h ); sternum II sub-rectangular with elongate anterior later arms with rounded apices, lateral sclerotized ridge with internal short branch, anterior margin concave with ridge not extending across centre median ( Fig. 16i ). Tergum VII subsquare; sternum VII irregularly shaped. Tergum VIII rectangular, wider than long; sternum VIII wider than long, shallow C-shape, strongly sclerotized ( Fig. 16j ).

Male genitalia ( Figs 25a, 25b ). Tegumen narrow, indistinct from pseudotegumen. Pseudotegumen dorsally unfused dorsal- and ventrally, broad lateral shelf, margins around anogenital field postero-ventrally extended as a spout-like projection with rounded apex across median, ventral surface of spout with 3–4 shallow transverse ridges and lip-like ridge at posterior edge of the fultura superior. Saccus V-shaped with broad, triangular, post-apodemal suture region. Tergal lobes absent. Valva large, elbowed, setose. Fultura superior indistinct, slightly sclerotized; fultura inferior sub-square, concave sides. Phallus membranous without cornutus.

Female unknown.

Etymology. It is named for John Dugdale (Nelson, New Zealand) in recognition of his outstanding contributions to the taxonomy of Hepialidae , in particular his comprehensive revision of the New Zealand hepialid fauna and his detailed consideration of morphological characteristics for both the adult and immature stages. The name follows the tradition of Druceiella and Pfitzneriella . The gender of the name is feminine.

Figures

FIGURE 10. Wing venation (male unless otherwise specified). 10a, Kozloviella viazmenskyi sp. n.; 10b, P. antonkozlovi sp. n.; 10c, P. olafi sp. n.; 10d, P. rawlinsi sp. n.; 10e, P. remota (from photo only, venation incomplete due to damaged condition of HT); 10f, P. yuliyakovalevae sp. n.; 10g, P. yuliyakovalevae sp. n. (female); 10h, Dugdaleiella monticola.

FIGURES 8–9. Voucher specimens. 8, Dugdaleiella monticola male. 8a, LT (ZMHB); 8b, Cotopaxi, Ecuador (CMNH); 8c, Volcán Chiles, Ecuador (CMNH); 8d, male, Volcán Chiles, Ecuador (CMNH). 9, Labial palpi (male unless otherwise specified), 9a, Kozloviella viazmenskyi sp. n.; 9b, Pfitzneriella antonkozlovi sp. n.; 9c, P. rawlinsi sp. n.; 9d, P. titarenkoi sp. n.; 9e, P. yuliyakovalevae sp. n.; 9f, P. yuliyakovalevae sp. n. (female); 9g, Dugdaleiella monticola. Photos: Jane Hyland (Fig. 8), John Grehan (Figs 9a–b, d–h), and Carlos Mielke (Fig. 9c). Scale 1 mm (when present).

FIGURES 12–14. 12, Antenna. Pfitzneriella rawlinsi sp. n. (unscaled). 13, Legs. 13a, Kozloviella viazmenskyi sp. n.; 13b, P. olafi sp. n.; 13c, P. rawlinsi sp. n.; 13d, P. titarenkoi sp. n.; 13e, P. yuliyakovalevae sp. n. 14, Metatibia. 14a, P. antonkozlovi sp. n.; 14b, P. rawlinsi sp. n.; 14c, P. titarenkoi; 14d, P. yuliyakovalevae sp. n.; 14e, P. antonkozlovi sp. n.; 14f, Dugdaleiella monticola. Photos: John Grehan (Figs 12, 14e, 14f), Carlos Mielke (Figs 13,14a–d). Scale 1 mm.

FIGURES 15–16. Tergosternal connection. 15a, Kozloviella viazmenskyi sp. n.; 15b, Pfitzneriella yuliyakovalevae sp. n.; 15c, P. rawlinsi sp. n.; 15d, Dugdaleiella monticola. 16, Abdomen (males unless otherwise specified). 16a, K. viazmenskyi sp. n.; 16b, P. antonkozlovi sp. n.; 16c, P. olafi sp. n.; 16d, P. rawlinsi sp. n.; 16e, P. titarenkoi sp. n.; 16f, P. yuliyakovalevae sp. n.; 16g, P. yuliyakovalevae sp. n. (female); 16h–16j, Dugdaleiella monticola. 16h, tergum II; 16i, sternum II; 16j, tergum and sternum VIII. Photos: John Grehan (Figs 15d, 16h–16j), Carlos Mielke (Figs 15a–15c, 16a–16g).

FIGURES 17–25. Genitalia (male unless otherwise specified). 17, Kozloviella viazmenskyi sp. n. HT. 17a, ventral; 17b, lateral. 18, Pfitzneriella antonkozlovi sp. n. HT, ventral. 19, P. olafi sp. n. HT, ventral. 20, P. rawlinsi sp. n. HT, ventral. 21, P. remota HT (redrawn from Viette (1951a)). 22, P. titarenkoi sp. n. HT, ventral. 23, P. yuliyakovalevae sp. n. 23a, ventral; 23b, lateral. 24, P. yuliyakovalevae sp. n. PT female. 24a, posterior; 24b, lateral. 25, Dugdaleiella monticola. 25a, LT (ZMHB); 25b, Cotopaxi, Parque Nacional Cotopaxi. Dissection JRG 136 (CMNH). sa = saccus, fs = fultura superior, fi = fultura inferior, as = apodemal suture. Scale 1 mm (when present). Photos: Carlos Mielke (Figs 17–20, 22–25b).