ANNA LES HISTORICO-NATURALES MUSEI N A T I O N A L I S H U N G A R I C I Tomus 62. PARS ZOOLOGICA 1970.

Ergebnisse der zoologischen Forschungen von Dr. Z. Kaszab in der Mongolei.

221. Seoliiidae (Hymenoptera) (Results of the Zoological Expeditions oî Dr. Z. Kaszab in Mongolia)

By C. G. N A G Y , Agigea, Rumania 1

The Scoliidae ol' Central Asia have been known, since S T E I N B E R G (1962) , as a group of solitary aculeate wasps, more or less evidentiated taconomically. Their biology, though of considerable economic importance in view of their parasitic be­havior on coleopterous larvae (Scarabeidae), is still relatively poorly known.

The Specimens collected by Dr. Z. K A S Z A B in his Mongolian expeditions consti­tute an important contribution to our knowledge of the Scoliid fauna of Central Asia, The number of collected specimens is 106, representing 5 known and 2 new species. The material is deposited in the Zoological Department of the Hungarian Natural Historv Museum, Budapest. The terminology used for localities is chieflv that given by P A P P (1967) .

The author wishes to extend his sincere thanks to Dr. Z. K A S Z A B and to Dr. L . M Ó C Z Á R (Zoological Department of the Hungarian Natural History Museum, Buda­pest) for the loan of the material presented here.

Family Scoliidae Genus Scolia F A B R I C I U S

Seolia (Scolia) potanini MORAWITZ, 1889

A species known from the Transbaikalia and the Central Gobi Desert.

Localities: Suchebaator aimak, 44 km SSW von Baruun urt, 1050 m, 2 - 3 . V I I I . 1965 (Nr 348) 1 çf, (Nr. 349) t çf - ~ Suchebaator aimak, Ongon elis, 1 0 km S von Somon Chongor, 900 m, 3 - 4 . V I I I . 1965 (Nr. 357) 8 ÇÇj. — Cojbalsan aimak, 40 k m E von Somon Tamzagbulag, 600 m, 1 1 . V I I I . 1965 (Nr. 389) 1 çf. — Cojbalsan aimak, zwischen Somon Chalchingol und Chamardavaa ul, 600 m, 12. V I I I . 1965 (Nr. 398) 1 çf. — Cojbalsan Aimak, zwischen Somon Chalchingol und See Bujr nur 600 m, 14. V I I I . 1963 (Nr. 413) 2 çf. - Cojbalsan aimak, Menengijn tal, 160 km W vom See Bujr nur 600 m, 15. V I I I . 1965 (Nr. 416) lçf.

Scolia (Seolia) eoncolor EVERSMAN, 1849

Inhabiting the Central and Eastern Asiatic zoogeographical subrcgion; reported from Turkmenia, Kasakstan, Usbekistan, Tadjikistan, Northeast China and the Central Gobi Desert.

Locality: Bajanchongor Aimak, Cagan Bogd ul , Gebirge Quelle Tooroinbulag, 1 3 km E vom Grenzposten Caganbulag, 1500 m, 25 -26 , V I . 1967 (Nr. 847) 47 cf and 3 0 .

1 Marine Research Institute.

322 C. Gr. N A G Y

Scolia (Seolia) incana sp. n.

Ç . — Length about 1 5 mm. Entirely ivory-black, w i th black vestiture, except for dorsum of metanotum, propodeum, first and second tergites being covered by a long, dense, dusky white pubescence (incana), ventral face of antennae cas-taneous; wings dark wi th a strong metallic reflection. Clypeus smooth and i m -punctate medially, punctate laterally and basally ; area frontalis and lateral margin of spatium frontale finely and sparsely punctate; front sparsely punctate, punctures arranged in groups; sinus ocularis impunctate, ocellar triangle coarsely and densely punctate; vertex impunctate, temples wi th few scattered punctures; fissura frontalis sharply impressed to frontal pi t . Pronotum very coarsely and rather sparsely punctate, also mesoscutum, excepting a central shining area; scutellum and postscutellum more sparsely and deeply punctate; area horizontalis medialis of dorsal surface of propodeum coarsely but rather uniformly punctate, inter­spaces broad and shining; lateral shining area half as broad as the area horizontalis lateralis of dorsal surface of propodeum; mesopleurum wi th scattered deep punc­tures, less evident above impunctate area of lateral tubercle. First tergum more densely and superficially punctate except median area wi th a few scattered punc­tures; dorsum of second tergum much more densely punctate than that of first one; th i rd tergum punctate like first one; first tergum without median groove or tubercle. Wing membrane glabrous, dorsal aspect of basal half covered wi th sparse black setae; ventral aspect without pubescence.

cf — Unknown.

Holotype $ labelled: "Mongolia, Bajancliongor aimak, Echin gol, cca 90 km NO von Grenzposten Caganbulag, 950 m, Exp. Dr. Z. K A S Z A B , 1967. (Nr. 856), 27-29. V I . 1967" ; type deposited in the Zoological Department of the Hungarian Natural History Museum Budapest.

Remarks. — This species differs from concolor in the vestiture of the body and the sculpture of the propodeum, in concolor wi th confluent, rather dense punctures and rugose interspaces on the anterior half of the area horizontalis medialis of the dorsal surface of the propodeum.

Seolia (Scolia) histrionica FABRICIUS, 1787

A species known from Central and Eastern Asia; reported from the USSR, China, Korea, Taiwan, Japan, Cambodja, Indonesia. New to the fauna of Mongolia.

Localities : Suchebaator aimak, Ongon elis, 10 km S von Somon Chongor, 900 m, 3-4. V I I I . 1965. (Nr. 356) 1 J, (Nr. 357) 5 cf and 4 $. — Cojbalsan aimak, SW Ecke des Sees Bujr nur, 585 m, 11. V I I I . 1965 (Nr. 391) 2 çf and 2 $. - Cojbalsan aimak, Chamardavaa ul, 80 km SE von Somon Chalchingol, 600 m, 13. V I I I . 1965 (Nr. 401) 1 çf and 6 $. - Cojbalsan aimak, Somon Chalchingol, 600 m, 14. V I I I . 1965 (Nr. 411) 1 $ .

Scolia (Discolia) quadripustulata FABRICIUS, 1781

A species known from India, Ceylon, Taiwan, China. I t was reported by G U I G L I A (1965) from Mongolia, on the basis of the specimen presented below.

Locality: Central aimak, Kerulen, Njalga Somon, Burgastin chosu, 1200 m, 3. V I L 1963. (Nr. 77), 1 çf (Det. Dr. D. G U I G L I A and C. G. N A G Y ) .

Seolia (Discolia) sehrenekii EVERSMAN, 1846

Distributed and frequent in Central Asia. Localities : East-Gobi aimak, 60-70 km NNW von Sainscliand, 1000 m, 29. V I .

1963 (Nr. 52) 1 çf (Det. Dr. D. GUIGLIA) . — Chentej aimak, 15 km E von Öndörchaan, 1 km S vom Fluss Kerulen, 1000 m, 30. V I I . 1965 (Nr. 326) 1 çf. — Cojbalsan aimak, Somon Tamzagbulag, 600 m, 10 - l ï . V I I I . 1965 (Nr. 387) 1 çf. - Cojbalsan aimak, 40 km E von Somon Tamzagbulag, 600 m, 11. V I I I . 1965 (Nr. 390) 1 Ç. - Suche­baator aimak, Ongon élis, 10 km S von Somon Chongor, 900 m, 3-4. V I I I . 1965 (Nr. 357) 4 çf and 2 Ç. — Cojbalsan aimak, zwischen Somon Chalchingol und See Bujr nur, 600 m, 14. V I I I . 1965 (Nr. 413) 1 Ç. — Cojbalsan aimak, 50 km SE von Coj­balsan, 700 m, 16. V I I I . 1965 (Nr. 420) 1 o. _ Bulgan aimak, 4 km S of Somon Daschincilen, 1200 m, 23. V I I . 1966 (Nr. 733) 1 çf. - Mittel-Gobi aimak, Choot bulag, zwischen Chuld und Delgerchangaj, 1480 m, 12. V I I . 1967 (Nr. 911) 1 çf. — Central aimak, 12 km S von Somon Bajanbaraat, 1380 m, 13-14. V I L 1967 (Nr. 917) le*-

Seolia (Discolia) mongolina sp. n.

9 . — Lenght about 20 mm. Entirely black, w i th black vestiture, except for the weakly infuscated ventral face of antennae and tergites two and three of ab­domen; wings uniformly dark wi th strong metallic reflection; second tergum with two yellow spots separated by slightly more than their diameter; third tergum wi th a transverse yellow band, weakly interrupted triangularly in center of anterior side. Head nearly as long behind eye as width of posterior lobe of eye; disc of clypeus convex, impunctate, shining and weakly rugose; fissura frontalis present on lower half, lamina frontalis impunctate, spatium frontale wi th deep scattered punctures; front wi th few primary and secondary punctures; ocellar furrow well marked; vertex impunctate, temples w i t h rather scattered punctures; occiput nearly flat, finely punctate. Pronotum finely, densely punctate on upper margin at its vertical surface; scapula coarsely and sparsely punctate, its posterior shin­ing margin two times as broad as that of schrenckii Mesoscutum coarsely and sparsely punctate, median area and posterior margin impunctate; scutellum coarsely and sparsely punctate, posterior half wi th broad interspaces and wi th a shining median furrow; postscutellum very densely and deeply punctate wi th a small shining triangular area on posterior th i rd . Mesopleurum finely punctate, posterior face wi th minute punctures, tubercle prominent, shining; propodeum rugoso-punctate. Dorsal surface of first tergum shining, posterorly finely punctete, punctures of sides coarse and spaced; median tubercle blunt and situated on lower part of anterior declivity ; terga 2 and 3 sparsely punctate, a l i t t le more closely so laterally on posterior margin; tergum 4 more densely punctate; terminal fringes moderately long. Sternum 2 with an abruptly perpendicular basal surface; ventral surface sparsely punctate, vestiture coarser towards sides and apex.

çf. — Length about 13 mm. Black, vestiture black; wings hyaline costal margin and basal th i rd of membrane dark wi th a strong metallic reflection; abdomen coloured as in female. Clypeus sparsely rugoso-punctate; spatium frontale more densely punctate; front and vertex coarsely and sparsely punctate; spatium frontale separated from front by a shining, deep, transverse furrow. Thorax densely punctate wi th strong median longitudinal shining areas on posterior half of meso­scutum, scutellum and postscutellum; mesopleurum much as in female, tubercle more densely punctate. Propodeum rugoso-punctate. Base of dorsal surface of a first tergum without tubercle, punctures coarse and dense; second and following

324 C. G. NAGY

tergites sparsely punctate but not more on sides than in middle. Genitalia not studied.

Holotype 9 labelled: Mongolia, Bulgan aimak, 4 km S von Somon Daschincilen, 1200 m. Exp. Dr. Z. K A S Z A B , ' 1 0 6 6 . (Nr. 734), 23. V I I . 1966. Allotype çf labelled: Mongolia, Uvs aimak, 19 km N W von der Stadt Ulaangom, 1150 m. Exp. Dr. Z. K A S Z A B , 1968 (Nr. 1079), 8. V I I . 1968; types deposited in the Zoological Department of the Hungarian Natural History Museum, Budapest.

Remarks. — This is apparently a very rare and local species, resembling schrenckii and hirta in many ways, including the colour of the abdomen. Similar yellow spots on the second tergum occur in these two species, but mongolina may be separated from them by the following characteristics:

1. Femnles 2 — Males \ . . 4

2. Spatium frontale and posterior margin of mesoscutum punctate; second tergum with transverse yellow band hirta

— Spatium frontale and posterior margin of mesoscutum inpunctate; second tergum at most with two separate yellow spots 3

3. First tergum with an acute median tubercle at base of dorsal surface; only third tergum with a yellow transverse band schrenckii

— First tergum wi th a blunt median tubercle situated on anterior declivity of first tergum; second tergum with two yellow spots, third with a transverse yellow band mongolina

4. Second tergum more densely punctate on sides than in middle; only third tergum with a transverse yellow band, more or less interrupted medially . . . . schrenckii

— Second tergum uniformly punctate; second and third terga with yellow mark­ings 5

5. Spatium frontale separated from the front by a shining deep furrow, punctures on spatium frontale small and rather dense," clearly differentiated from shining front mongolina

— Spatium frontale not separated from front, punctures of different size, confluent and without separate line between front and spatium frontale hirta

References: B E T R E M , J. G . : Beiträge zur Kenntnis der Paläarktischen Arten des Genus Scolia (Tijdschr. v. Entomologie, 7 8 , 1935, p. 1-78). — B E T R E M , J. G. & Bradley, J. C.: Annotations on the Genera Triscolia, Megascolia and Scolia (Hym., Scoliidae) (second part) (Zool. Meded. Leiden, 40, 1964, p. 89-96). — G U I G L I A , D . : Ergebnisse der zoologischen Forschungen von Dr. Z. K A S Z A B in der Mongolei. Scoli-oidea (Hym.) (Ann. Mus. Civ. Stor. Nat. Genova, 65, 1965, p. 333-343). — H A M M E R , K . : Schwedisch-chinesische wissenschaftliche Fxpedition nach den nordwestlichen Provinzen Chinas unter Leitung von Dr. Sven Hedin und Prof. Sü Ping-chang. (Arkiv för Zoologi, 2 7 , 1934, p. 1-3). — K A S Z A B , Z.: Ergebnisse der zoologischen Forschungen von Dr. Z. K A S Z A B in der Mongolei. Liste der Fundorte der V I . Expe­dition (Folia Entom. Hung. 2 1 (suppb), 1968, p. 389-444). - N A G Y , C. G.: Beiträge zur Kenntnis der rumänischen Scoliiden—Arten (Hym. Scoliidae) (Keichenbachia, 8 , 28, 1967. p. 221-226). — P A P P , J.: Ergebnisse der zoologischen Forschungen von Dr. Z. K A S Z A B in der Mongolei. Braconidae (Hvm.) (Acta Zool. Hung., 1 3 (1-2), 1967, p. 191-226). - S T E I N B E R G , D. M . : Scoliidae', Fauna USSR, 1 3 , 1962, p. 1-185). — Y A S U M A T S I X , K . : Hymenoptera Aculeata collected by Mr. K . Tsuneki in North China and Inner Mongolia. I I . Vespoidea (Mushi 1 7 , 1946, p. 13-18.).