Ammophila horni VON SCHULTHESS

Dollfuss, H., 2013, Revision of the Wasps Genus Ammophila KIRBY 1798 (Hymenoptera Apoidea Sphecidae) of the Palearctic Region and India, Linzer biologische Beiträge 45 (1), pp. 383-564 : 445-446

Ammophila horni VON SCHULTHESS (Figs 21, 38, 86, 112, 180, 224, 390, 573)

Ammophila horni VON SCHULTHESS 1927: 297 , 3. Holotype: 3, Sudan: Port Sudan (DEI), examined.

M a t e r i a l e x a m i n e d: Holotype 3 ( DEI); Egypt: Gebel Elba (1♀, 333 NHMW). Oman: 40 km NE Nizwa (1♀ coll. Schmid-Egger).

R e c o g n i t i o n Ammophila horni has a gastral apex black, pruinose and without a metallic shine, the mesothoracic venter is not prominent anteriorly and the episternal sulcus extends to the anteroventral margin of the pleuron. The head, the thorax, the propodeum (including propodeal enclosure) and the hindcoxa are covered with appressed silvery setae that obscure most of the underlying sculpture. The female of A. horni is similar to A. rubripes but differs in having a clypeal disk not evenly convex ( Fig. 86 ). The female of A. heydeni differs from A. horni in having the thorax laterally not all covered with appressed silvery setae and the clypeal disk evenly convex in lateral view. The male of A. horni differs from all species of the A. nasuta- group in having a hypostomal carina with a tooth near the mandibular socket (Fig. 21).

D e s c r i p t i o n: Gastral apex black, pruinose and without metallic shine, supraantennal lamellate projection absent, mesothoracic venter not prominent anteriorly and episternal sulcus extending to anteroventral margin of pleuron. Arolia large, claws without basal tooth. Head, thorax, propodeum (including propodeal enclosure) and hindcoxa covered with appressed silvery setae that obscure most of underlying sculpture; erect setae silvery-white.

♀: 20-21 mm. Black, with following yellowish-brown: mandible (except apex), tegula, legs (except hindcoxa, hindtrochanter and hindtibia dorsally), petiole (darkened dorsally), tergum I, gastral segments II (darkened dorsally), III and sternum IV; wings hyaline. Clypeus elongate ( Fig. 38 ), disk in ventral half obliquely flat and sparsely punctate, distinctly convex in dorsal half ( Fig. 86 ). Pronotal collar sparsely punctate, scutum transversely ridged behind appressed setae, scutellum longitudinally ridged. Propodeal enclosure medially irregularly rugose, laterally transversely ridged, all covered with appressed setae. Flagellomere I: II=1.5-1.8; length of petiole = hindtarsomeres I+II+0.3×III to I+II+0.5×III.

3: 18-19(20) mm. Black, with following yellowish-brown: mandible (except apex), tegula, legs (hindleg dorsally darkened), petiole (dorsally darkened), tergum I, gastral segments II and III (all except dorsal black stripe) and sternum IV. Ventral margin of clypeus distinctly elongate and truncate ( Fig. 224 ), disk nearly flat ventrally, distinctly convex dorsally ( Fig. 332 ). Hypostomal carina with tooth near mandibular socket (Fig. 21). Sculpture of pronotal collar, scutum, mesopleuron and metapleuron obscured by appressed setae, scutellum longitudinally ridged. Gonostyle laterally: Fig. 390 ; penis valve apically: Fig. 573 . Flagellomere I: II=1.5; length of petiole = hindtarsomeres I+II+0.5×III.

G e o g r a p h i c a l d i s t r i b u t i o n: Egypt, Oman, Sudan.

Figures

Figs 85-109: clypeus of female in lateral view.

Figs 36-43: clypeus of female.

Figs 216-226: male clypeus.

Figs 332-356: male clypeus in lateral view.

Figs 390-397: male genitalia: gonostyle in lateral view.

Figs 563-596: male genitalia: penis valve in apical view.