Hagnogyna, Bartsch, 2013

Bartsch, Daniel, 2013, Revisionary checklist of the Southern African Sesiini (Lepidoptera: Sesiidae) with description of new species, Zootaxa 3741 (1), pp. 1-54 : 25-26

Hagnogyna new gen.

Type species: Homogyna sanguicosta Hampson, 1919 , designated here.

Etymology. Ancient Greek hagnoia (= mistake) and gyne (= wife), gender is feminine.

Description. Head with width of frons about 1.5× the diameter of the eye; haustellum present, but relative short, weakly sclerotized; labial palpus almost straight, proximally somewhat upturned, covered with rather short, dorsally smooth, ventrally rough scales, second palpomere nearly 1.5× the length of other palpomeres; frons smooth, near antenna base somewhat rough; vertex with hair-like rather short and smooth scales, cranially with narrow bald area; male antenna bipectinate, ventral row of rami very short, more or less fused with dorsal row to a transverse ridge, pectination extends to tip, covered with short ciliae ( Fig. 98 , 105 ); female antenna without pectination or ciliae, slightly clavate. Thorax and abdomen rather strong, smooth without hair-like scales; dorsolateral scale tufts of metathorax short; anal tuft short and narrow. Legs rather short and strong, covered with smooth scales; mid- and hind tibia dorso-medially and -distally with some erected, bristle-like scales; spurs long, mesal ones somewhat longer than lateral ones. Wings narrow, almost opaque, except for proximal part of hindwing; discal spots not visible or inconspicuous (on hindwing of H. bartschi ). Venation of forewing ( Fig. 90 ) with R1–R3 approximated; R4/R5 short stalked; media veins arise equally spaced; hindwing with short common stalk of M3/ CuA1; CuA2 arise somewhat proximal of cross vein; 3A narrow and closely approximated to anal margin.

Male genitalia ( Figs. 120–121 ). Rather small with unusually short saccus and large phallus. Tegumen and uncus short and broad, relatively strong, fused; gnathos absent or very small; uncus dorsally and laterally with scarce hair-like, ventro-lateral margins with dense bifurcate setae; valva short and broad, trapezoid to rectangular, dorsally or dorso-distally with a dense area of bifurcate setae; juxta very strong, extremely protruding, well sclerotized; manica simple, without spines or teeth; phallus straight, large and long, laterally flattened, with short coecum penis, dorso-proximally membranous widened, distally tapering; vesica proximally densely covered with short spines.

Female genitalia ( Fig. 131 ). Papillae anales and segment eight very short and broad; apophyses anteriores and apophyses posteriores of equal length; ostium bursae simple, broad, funnel-shaped; antrum membranous, short, narrow; ductus bursae rather broad, slightly s-curved; bursa copulatrix ovoid, without signum.

Diagnosis. Hagnogyna can be characterized by the following putative synapomorphies: (1) valva simple, basally very broad; (2) setae of uncus and valva dense, bifurcate; (3) juxta very large, manica simple, without sclerotized spines; (4) phallus very large and straight with short coecum penis, vesica basely with numerous short teeth; (5) unusual proportion of saccus (very short) and phallus (long and large); (6) ductus bursae of female scurved.

Superficially similar species of Erismatica and Homogyna (Osminiini) differ clearly by the lack of rami on the male antenna. Males of Felderiola show a rather similar structure of the antennae, but can be distinguished by the scarcer, thorn-like, not bifurcate setae of the valva and uncus. Females differ by the well developed lamella postvaginalis (reduced in Hagnogyna ), the very different length of the anterior and posterior apophyses (of equal length in Hagnogyna ) and the straight ductus bursae (s-curved in Hagnogyna ).

Distribution. H. bartschi seems to be restricted to the south-western part of South Africa, the more widespread H. sanguicosta is known from Zimbabwe, Zambia and Tanzania.

Figures

FIGURES 92–98. Male antennae: (92) Alonina pyrocraspis (Hampson, 1910); (93) Alonina rygchiiformis Walker, 1856; (94) Anaudia felderi Wallengren, 1863; (95) Austrosetia semirufa Felder & Felder, 1874; (96) Felderiola candescens (Felder & Felder, 1874); (97) Monopetalotaxis doleriformis (Walker, 1856); (98) Hagnogyna bartschi (Freina, 2011).

FIGURES 99–106. Scanning electron microscope pictures of antennae: (99) Cicinnoscelis flavipes new sp., #f holotype; (100) Alonina rygchiiformis Walker, 1856; (101) Anaudia felderi Wallengren, 1863; (102) Austrosetia semirufa Felder & Felder, 1874; (103) Felderiola karooensis new sp.; (104) Monopetalotaxis doleriformis (Walker, 1856); (105) Hagnogyna bartschi (Freina, 2011); (106) Sesia bembeciformis (Hübner, 1803).

FIGURES 84–91. Wing venations: (84) Cicinnoscelis longipes Holland, 1893; (85) Alonina rygchiiformis Walker, 1856; (86) Anaudia felderi Wallengren, 1863, syntype; (87) Austrosetia semirufa Felder & Felder, 1874; (88) Felderiola candescens (Felder & Felder, 1874); (89) Monopetalotaxis doleriformis (Walker, 1856); (90) Hagnogyna sanguicosta (Hampson, 1919); (91) Vespanthedon cerceris Le Cerf, 1917, holotype.

FIGURES 120–121. Male genitalia of Hagnogyna new gen.: (120) H. sanguicosta (Hampson, 1919) [vinculum missing]; (121) H. bartschi (Freina, 2011), paratype.

FIGURES 130–131. Female genitalia of Monopetalotaxis Wallengren, 1859 and Hagnogyna new gen.: (130) Monopetalotaxis doleriformis (Walker, 1856): (131) Hagnogyna sanguicosta (Hampson, 1919).