Anomologa Meyrick, 1926

Bidzilya, Oleksiy V., Karsholt, Ole, Metz, Mark & Rajaei, Hossein, 2025, Revision of the genus Anomologa Meyrick, 1926, including the description of a new species, and its impact on subfamilies of Gelechiidae (Lepidoptera), Zootaxa 5575 (1), pp. 131-150 : 135-136

Anomologa Meyrick, 1926

Type species: Anomologa dispulsa Meyrick, 1926

Euryctista Janse, 1963 , syn. nov. (Type species: Euryctista hobohmi Janse, 1963 )

Diagnosis. Species of Anomologa are comparatively large in size (19–26 mm in wingspan) and, externally, can be recognized by their short, porrect labial palpus with very short segment 3; reduced proboscis; head with tufts of hairs and disheveled hairs (except frons); thickened antennal scape with anterior tuft of dense scales (pecten) ( Figs 12–17 ); and broad trapezoidal hindwing with weakly produced rounded apex and weakly sinuated termen. Some species of the genus Metanarsia show some similarity to Anomologa in shape of labial palpus and shape of hindwing, however the thickened scape and disheveled rather than smooth in Metanarsia and other Apatetrinae and Anomologinae head of Anomologa is unique.

Male genitalia of Anomologa are characterized by an uncus consisting of paired, lateral, elongate lobes separated by a medial membranous zone (uncus not divided into lobes in rest of Apatetrinae and Anomologinae genera); anteriorly tegumen strongly edged (weakly edged in other genera); wide sacculus with medially directed extension (flat, without medial extension in other genera); and slender, evenly sclerotized phallus with short basal process (relatively wide with partially membranous distal part and distinct basal process in Metanarsia and Chrysoesthia Hübner, 1825 ).

Female genitalia are characterized by large papillae anales; the ovipositor densely covered posteroventrally with small denticles (unmodified in rest of Apatetrinae and Anomologinae genera); straight, band-shaped anterior margin of sternum VIII (protruded anteriorly in Metanarsia and Chrysoesthia ); short apophyses anteriores which tends to be thickened and inflated apically (simple in other genera); ductus bursae membranous and corpus bursae elongate, without signum.

Redescription. ( Figs 12–17 ) Head white, yellow, light brown to ochreous-brown, covered with disheveled hairs; frons covered with smooth scales; proboscis and ocelli absent; labial palpus concolorous with head, but irrorated by dark brown, segment 2 porrect, segment 3 1/4–1/3 length of segment 2, hidden by scales arising from the top of segment 2, straight or weakly recumbent; antennae shortly ciliated beneath in male, scape thickened, about 1.5 times as broad as first flagellomeres, with a dense anterior tuft. Tegulae concolorous with ground colour of the forewing; metascutum with paired tufts of hair-like scales directed caudally. Wingspan 19.0– 26.1 mm; forewing moderately broad, its costal margin gradually arched, apex rounded, tornus obtuse, ground colour white to light grey, pattern consists of basal, medial and subapical black transverse fasciae, termen edged with black, in A. demens forewing uniformly black; the venation is described and illustrated by Janse (1963) and Bidzilya (2007). Hindwing grey to black, subtrapezoid, slightly broader at middle than forewing at middle, costal margin weakly arched, dorsal margin straight, termen weakly sinuated, apex slightly produced, rounded; frenulum of both male and female with one acanthus. In male specimens, tergum VIII and sternum VIII ( Fig. 18 ) with a united ring, subrectangular, posterior margin weakly emarginated; tergum VIII subrectangular, slightly broader than long, weakly narrowed posteriorly, posterior margin weakly emarginated; sternum VIII subrectangular, twice as broad as long, with anchor-shaped anteromedial sclerotized patch or evenly sclerotized, posterior margin gradually emarginated; sternum and tergum III–VII subrectangular, 2.5–3 times broader than long; sternum II ( Fig. 19 ) twice longer than broader, with distinct broad medial sclerotization; apodemes straight, long, no venulae, anterior margin straight or weakly concave; tergum II and I almost as broader as long ( Fig. 19 ). In female specimens, tergum VII tongue-shaped or subrectangular, anterior margin twice as broad as anterior margin; sternum VII trapezoidal, slightly narrowed posteriorly, broader at base than long, posterior margin weakly emarginated; segments III–VI subrectangular, 3 times as broad as long, segment I and II similar to male.

Male genitalia ( Figs 20–27 ). Uncus consists of a pair of elongate, subovate lobes separated by medial membranous zone (tubus analis); gnathos absent; tegumen trapezoidal or subrectangular, usually elongated at base, strongly edged anteriorly, lateral flaps curved inwards, anteromedial emargination extends to 1/5–1/3 length; valva elongate, almost even width, broadened on ventral margin in some species, apex rounded, extends over top of uncus; sacculus as a large, subovate or irregular shaped lobe with medially directed extension, apex with pointed tip, from 1/3 to 1/2 length of valva; vinculum narrow, band-shaped, juxta lobes rounded or subtriangular, separated by Vshaped medial incision, setose; saccus short triangular to long subrectangular; phallus direct or weakly concave on one side, its base and apex usually weakly inflated, with short or comparatively large triangular subapical tooth, as long as or shorter than valva, its base with short paired process.

Female genitalia ( Figs 28–30 ). Papillae anales large, elongate, sclerotized ventro-laterally, densely setose, posteroventrally densely covered with small denticles; apophyses posteriores slender, straight, weakly or distinctly broadened apically; segment VIII subrectangular, usually broader than long, unmodified, evenly sclerotized; sternum VIII with deep posterolateral emargination, anterior margin straight, band-shaped; apophyses anteriores short, slender or thick, usually distinctly inflated apically; ostium bursae indistinct, subostial plate funnel-shaped or rounded; ductus bursae slender, membranous, gradually broadened towards elongated corpus bursae; signum absent.

Biology. Host plant and immature stages are unknown.

Distribution. Southern Africa ( South Africa, Namibia and Botswana).

Check-list of Anomologa species

Anomologa demens Meyrick, 1926

Anomologa dispulsa Meyrick, 1926

Anomologa hobohmi ( Janse, 1963) comb. nov.

Anomologa terminata sp. nov.

Key to adults based on external characters

1 Forewing uniformly black ( Fig. 2 )................................................................ A. demens

- Forewing patterned with bands of grey and white ( Figs 3–11 ).................................................. 2

2 Fringes of forewing grey; termen of forewing grey ( Figs 9–11 )................................. A. terminata sp. nov.

- Fringes of forewing white; termen of forewing white ( Figs 3–8 )................................................ 3

3 Forewing dorsal surface area with more white scales, medial fascia narrow ( Figs 3–5 )...................... A. dispulsa

- Forewing dorsal surface area with more greyish black scales, dark fasciae broader, sometimes joining in middle ( Figs 6–8 )................................................................................... A. hobohmi comb. nov.

Key to males based on genitalia

1 Phallus in middle narrower than valva ( Figs 20, 26, 27 )....................................................... 2

- Phallus in middle as wide or wider than valva ( Figs 21–25 )................................................... 3

2 Saccus extended anteriorly beyond pedunculus, phallus longer than valva ( Figs 26, 27 )............. A. terminata sp. nov.

- Saccus not extended anteriorly beyond pedunculus, phallus shorter than valva ( Fig. 20 )...................... A. demens

3 Saccus slightly extended anteriorly beyond pedunculus, phallus 2/3 length of valva with short subapical tooth ( Figs 21–23 )............................................................................................ A. dispulsa

- Saccus extended anteriorly well-beyond pedunculus, phallus as long as valva with large apical tooth ( Figs 24, 25 ).......................................................................................... A. hobohmi comb. nov.

Key to females based on genitalia

(Note: female of A. demens unknown)

1 Apophyses anteriores length equal or greater than width of segment VIII at posterior margin and extremely inflated apically ( Fig. 29 ).......................................................................... A. hobohmi comb. nov.

- Apophyses anteriores length much less than width of segment VIII at posterior margin, moderately or not expanded apically ( Figs 28, 30 )......................................................................................... 2

2 Apophyses anteriores about as long as sternum VIII, weakly widened at apex ( Fig. 30 ).............. A. terminata sp. nov.

- Apophyses anteriores thick, 2/3 as long as sternum VIII, distinctly capitate ( Fig. 28 )........................ A. dispulsa

Figures

FIGURES 12–19. 12–17. Head morphology. 12, 13. Anomologa demens, male. 12. Dorsolateral view. 13. Lateral view. 14, 15. A. dispulsa, male. 14. Lateral view. 15. Dorsal view. 16, 17. A. hobohmi. 16. Male, lateral view. 17. Female, lateral view. 18, 19. Anomologa hobohmi, male abdominal segments.18. Segment VIII: tergum (left), sternum (right). 19. Segments II–III: tergum (left), sternum (right).

FIGURES 20–27. Structure of male genitalia. 20. Anomologa demens, Slypsteendrift (gen. slide 27/13, O. Bidzilya). 21–23. A. dispulsa. 21. Holotype. 22. Zoutpan (gen. slide 200/23, O. Bidzilya). 23. Messina (gen. slide 36/23, O. Bidzilya). 24, 25. A. hobohmi. 24. Holotype (valva separated). 25. Koakow (gen. slide 54/23, O. Bidzilya). 26, 27. Anomologa terminata sp. nov. 26. Holotype. 27. Paratype, Fischriver, Gondwana Canyon (gen. slide 53/23, O. Bidzilya).

FIGURES 28–30. Structure of female genitalia. 28. Anomologa dispulsa, Waterberg NP (gen. slide 69/11, O. Bidzilya). 29. A. hobohmi, Hobatere Lodge (gen. slide 32/23, O. Bidzilya). 30. A. terminata sp. nov., Paratype, Hardap Dam (gen. slide 18/13, O. Bidzilya).

FIGURES 2–11. Wing pattern. 2. Anomologa demens, male, Slypsteendrift. 3–5. A. dispulsa. 3. Holotype, male. 4. Male, Waterberg NP (gen. slide 23/23, O. Bidzilya). 5. Female, Waterberg NP (gen. slide 69/11, O. Bidzilya). 6–8. A. hobohmi. 6. Holotype, male. 7. Male, Buschfeld Park (gen. slide 386/14, O. Bidzilya). 8. Female, Hobatere Lodge (gen. slide 32/23, O. Bidzilya). 9–11. A. terminata sp. nov. 9. Holotype, male. 10. Paratype, male, Fischriver, Gondwana Canyon (gen. slide 53/23, O. Bidzilya). 11. Paratype, female, Hardap Dam (gen. slide 18/13, O. Bidzilya).