Glyptobasis spinicornis van der Weele, 1909b

Suryanarayanan, Thangalazhi Balakrishnan, Ábrahám, Levente & Bijoy, Chenthamarakshan, 2024, Taxonomic revision of the owlfly genus Glyptobasis McLachlan, 1873 (Neuroptera: Ascalaphidae) from India and its adjacent countries, Zootaxa 5486 (3), pp. 388-418 : 409-411

Glyptobasis spinicornis van der Weele, 1909b

( Fig. 17 )

Glyptobasis spinicornis van der Weele, 1909b: 245 ; Poggi 1993: 439; Sziráki 1998: 62; New 2003: 172.

Glyptobasis denticornis Kimmins, 1949: 26 ; Sziráki 1998: 62; syn. n.

Type locality: Myanmar ( Burma), Palon (Pegu).

Type material examined. Two male and one female syntypes, preserved in MCSN, were checked .

In coll. MCSN, / [ Myanmar], Palon (Pegu) / L. Fea VIII–IX. 1887 // Mus. Civ. / Genova // Glyptobasis / spinicornis / type Weele // Syn / Typus / ♂ // Syntypus ♂ / Glyptobasis / spinicornis / van der Weele, 1909b /. Lectotype ♂ Glyptobasis spinicornis van der Weele, 1909b designated: L. Ábrahám 2023 (present designation).( Fig. 17A–D ).

Paralectotype ♂ as lectotype ♂; / Bhama / Birmania / [L.] Fea VIII. 1885 // Mus. Civ. / Genova // Glyptobasis / spinicornis / type Weele // Syn / Typus / ♀ // Syntypus ♀ / Glyptobasis / spinicornis / van der Weele, 1909b /. Paralectotype ♂ and ♀ Glyptobasis spinicornis van der Weele, 1909b designated: L. Ábrahám 2023 (present designation) ( Fig. 17D ).

In van der Weele (1909b): „Birmah”; „Polan, Pegú, August–September 1887 ”; „Bhamó, August 1885 ”; „L. Fea”.

In coll. NHMUK: / [Holo] Type // Glyptobasis / denticornis / ♂ Kim. / D.E. Kimmins det. 1947 // North Birmah // McLachlan Coll. / B.M.1938-674. // NHMUK 015105141 / ( Figs. 18A–C ).

Measurements. Male (n=2) forewing: 33–35 mm; hindwing: 32–34 mm; antenna: 38 mm; female (n=2): forewing length: 38–40 mm; hindwing length: 37–39 mm ( van der Weele 1909b).

Diagnostic characters. Vertex yellow. Frons, labrum, and clypeus shiny and dark brown to black. Male antenna as long as forewing and curved in S-shape in first bend, at second bend strongly toothed on inner surface. Female antenna straight and reaching to pterostigma. Yellow strip present only on mesothorax in lateral view. Apices of wings pointed, slightly concave below tip. Legs black. Male ectoproct with long and thick processus bending downwards and inwards, caudal part obtuse with short and strong bristles, extending well beyond sternite 9 in dorsal view. In ventral view, sternite 9 pentagonal-shaped, wider at base than high, and with the tip blunt. In ventral view, gonocoxite 9 arch-like with pair of strong curved S-shape extensions, and with apices acute. Terminalia and genitalia as van der Weele (1909b: fig. 2) and Kimmins (1949: fig. 10).

Distribution. Known only in Myanmar ( van der Weele 1909b; Kimmins 1949) ( Fig. 21 ).

Flight period of adult. August and September ( van der Weele 1909b) ( Fig. 22 ).

Remarks. van der Weele (1909b) examined 2 male and 2 female types while describing the species. Three syntypes (2 males, 1 female) can be found in MCSN (Genova). One female syntype is preserved in the NNML, this type specimen was not examined. During this study of the Glyptobasis type specimens, Glyptobasis denticornis Kimmins, 1949 (syn.n.) proved to be a junior synonym of Glyptobasis spinicornis van der Weele, 1909b . Apart from the type specimens, no new faunistic data are known.

Figures

FIGURES 17A–D. Lectotype male and paralectotype female of Glyptobasis spinicornis van der Weele, 1909b preserved in the MCSN, A—Habitus, B—Head in frontal view, C—Thorax and legs in lateral view, D—Paralectotype female head, thorax and legs in ventral view.

FIGURES 18A–C. Holotype male of Glyptobasis denticornis Kimmins, 1949, preserved in the NHMUK, A—Habitus, B— Head in frontal view; C—Head and thorax in lateral view.

FIGURE 21. Distribution map of Glyptobasis species from India and surrounding countries; black circle—G. nigrifrons, red circle—G. cornuta, brown circle—G. nugax, yellow circle—G. weelei, blue circle—G. spinicornis, orange circle—G. fraseri.

FIGURE 22. Flight period of Glyptobasis species from India and surrounding countries.