Ganguilus oblitus ( Navás, 1914 ), Navas, 1914

Michel, Bruno & Mansell, Mervyn W., 2010, Revision of the genus Ganguilus Navás (Neuroptera, Myrmeleontidae) with descriptions of three new species, Zootaxa 2386, pp. 1-24 : 6-7

Ganguilus oblitus ( Navás, 1914) stat.rev., comb.nov.

( Figs 9–12 )

Cordeses oblitus Navás, 1914: 95 .

This species was synonymised with G. pallescens by Hölzel (1982), but is reinstated here as a valid species.

Diagnosis

Characterized by its small size, wings without markings and body coloration brown and yellow ( Fig. 9 ). It can be distinguished from G. pallescens by the smaller size, pronotum with two clearly separated longitudinal brown stripes and the presence of erect black setae on dorsal surface of femora.

Redescription

Size (mm). Forewing: 3 27, Ƥ 26–29; hind wing: 3 24, Ƥ 19–25; length of body: 3 26, Ƥ 19.

Head. Face brown. Frons above antennae with continuous transverse brown stripe. Vertex with interrupted brown marking. Antennae: scape brown; pedicel and flagellum darker. Terminal segment of labial palps enlarged at base.

Thorax. Pronotum elongate, yellowish with two clearly separated dorsal brown stripes from anterior to posterior margin and a lateral brown stripe extending from anterior groove to posterior margin. Meso- and metanotum mainly dark brown. Pleurites dark brown.

Legs. Brown. All femora and fore and middle tibiae with brown spots. Middle femora with 5 erect black setae on dorsal surface. Femoral brush in male with 28–29 setae. Spurs: in fore tibiae longer than T1+2, in middle tibiae as long as T1+2, in hind tibiae shorter than T1+2. Claws slightly curved.

Wings. Narrow. Membrane hyaline without markings. Veins pale with SC and R darker. Forewings with 6 crossveins between R and MP before origin of RS; RS arising beyond CuA fork. Stigma almost indistinct. Hind wings slightly pointed at apex.

Abdomen. Tergites and sternites brown with tergite IX and ectoprocts yellowish; tergites finely bordered with yellowish laterally. Male ectoprocts almost oval, not extended backwards ( Fig. 10 ). Parameres short evenly curved ( Figs 11 & 12 ).

Material examined

DJIBOUTI: HOLOTYPE Ƥ / HOLOTYPE [p]/ TYPE [p] [with part of left hind wing glued]/MUSEUM PARIS * OBOK [sic!] [11°57’N 43°17’E]* JOUSSEAUME 7-97 [p]/ Cordeses [h]* oblitus Ƥ Nav. [h]* Navas S.J det. [p]/ Cordeses oblitus * Navás, 1914 * Holotype * H. Hölzel det. 1982 [h]/ ( MNHN). SAUDI ARABIA: Mujairima [20°36’N 39°06’E], alt. 75 m, 13,. i.1945, B.P. Uvarov ( BMNH); Dunqar (not located), 1Ƥ, 17.i.1937, J.B. Philby ( BMNH).

Distribution

Known only from Djibouti and Saudi Arabia ( Fig. 51 ).

Figures

FIGURES 9. Ganguilus oblitus female, habitus (holotype).

FIGURES 10 – 12. Ganguilus oblitus male. 10 — Right ectoproct (setae omitted); 11 — Genitalia, right view; 12 — id., ventral view.

FIGURE 51. Distribution of Ganguilus species.