Ammoplanus serratus Tsuneki, 1972

Mokrousov, Mikhail, 2017, To the knowledge of digger wasps of subfamily Pemphredoninae (Hymenoptera: Crabronidae) of Russia, Far Eastern Entomologist 337 (337), pp. 1-16 : 4-5

Ammoplanus serratus Tsuneki, 1972

Figs 1–5

Ammoplanus serratus Tsuneki, 1972: 223 , ♀, holotype, ♀, Mongolia, Central Aymag ,

Tosgoni-Ovoo [Természettudományi Múzeum, Budapest, Hungary]; Baghirov, 2010: 679

[Altai Rep.].

SPECIMENS EXAMINED. Russia: Altai Rep., 20 km WNW Kosh-Agatch,

14.VII 2007 (B.), 1♂ [ ZISP]. Mongolia : Khovsgol Aimag (former Khubsugul

Aimag), Delger-murun river, near Buren-Khana, 28–29.VI 1968 (A. Emeljanov),

1♀ [ ZISP] .

DESCRIPTION. MALE (hitherto unknown). Dark brown; small triangular spots at bottom of inner edge of eyes, small rounded spot between antennal sockets,

lateral parts of clypeus, labrum, mandible and scape and pedicel ventrally whitish

( Fig. 1 ). Legs brown with paler fore trochanter, apex of fore femur, inner side of fore tibia and tarsus. Wings venation brown, pterostigma brown with paler base.

Body length 2.8 mm.

Head. Elongate, ratio length (from vertex to apex of clypeus medially in frontal view) to width 0.88 × ( Fig. 1 ); distance between antennal socket and eye 1.4 ×

diameter of antennal socket ( Fig. 2 ). Eyes with shallowly emarginate inner orbits,

slightly converging downwards, ratio minimal distance from above to minimal distance below about 1.22 × ( Fig. 1 ). Clypeus with deep emargination bounded by strong teeth, medially with small rounded protrusion ( Fig. 2 ). Labrum width 1.33 ×

its length. Head ventrally with large shallow, undivided hollow behind oral fossa

( Fig. 3 ), but slightly smaller than in female; concavity delimited by transverse,

slightly arcuate weak ridge. Mandible broad, inner tooth diagonally truncate ( Fig. 2 ).

Flagellomeres 1–10 slightly longer than its width, flagellomer 11 distinctly longer than its width ( Fig. 5 ). Head dull with dense microsculpture; at front with rather strong punctuation; head ventrally with distinct longitudinal wrinkles.

Pronotal collar short, rounded, without transverse carina, not depressed medially.

Mesonotum with short lateral admedian lines and notauli; parapsids distinct. Mesosoma (except metanotum) dull with dense microsculpture and weak punctures;

metanotum smooth and shiny; metapostnotum with strong wrinkles basally and one long irregular median wrinkle and small transverse wrinkles and irregular areolate sculpture; propodeum laterally with numerous oblique wrinkles.

Legs normal; hind tibia slightly curved; hind tarsomere 1 not modified.

Metasomal sternum 5 modified: apex slightly widely emarginated at central part; apical third laterally with rising backwards, longitudinal prominence, bearing long slightly curved setae ( Fig. 4 ). Sterna 3–4 apicolaterally with group of long setae. Tergum 7 densely pubescent.

DISTRIBUTION. Russia (Altai Rep.), Mongolia.

Figures

Figs 1–5. Ammoplanus serratus, ♂ (Altai Rep.). 1 – head, frontal view; 2 – clypeus, labrum and mandibles; 3 – head, posterior view; 4 – sternum 5, ventrolateral view; 5 – antenna.