Macrosiagon bifasciata ( Marseul, 1877 )

Batelka, Jan, 2011, Contribution to the synonymies, distributions, and bionomics of the Old World species of Macrosiagon (Coleoptera: Ripiphoridae), Acta Entomologica Musei Nationalis Pragae 51 (2), pp. 587-626 : 594-595

Macrosiagon bifasciata ( Marseul, 1877)

Emenadia bifasciata Marseul, 1877: 478 . Type locality: Japon [= Japan]. Macrosiagon bifasciatum: CSIKI (1913) : 10 (new combination). Macrosiagon medana Pic, 1910: 86 , syn. nov. Type locality: Sumatra, Medan. For the complete synonymy of M. bifasciata see BATELKA (2008a).

Type material examined. For Emenadia bifasciata see BATELKA (2004), for Macrosiagon medana see BATELKA (2007a).

Material examined. CHINA: YUNNAN: 1 J 1 ♀ ( JBCP), ‘ China – W. Yunnan / Sebe / 28.6.- 1.7.2002 / Lgt. E. K. [p] ’. INDIA: DARJEELING: 1♀ ( JHCP), ‘ India: West Bengal, 1300m / 2.4.1988, Darjeeling Distr. / Kalimpong: Khangelung / L.Dangal leg.[p] ’; 1♀ ( NHMB), ‘ Melli / 200m ( KPG) / 14.IV.1986 // Indien / Darjeeling D. / Ch.J. Rai [p]’. HIMACHAL PRADESH: 1 ♀ ( BMNH), ‘Punjab. / Kangra Valley. / 1903 – 37 [p] // Kangra Valley / 4500 ft. / July 1899 / Dudgeon. [p]’. UTTAR PRADESH: 2 ♀♀ ( BMNH), ‘ C. Almora / Kumaon / India H.G.C. // H.G. Champion Coll. / B.M. 1953-156. [p] ’; 1 J 3 ♀♀ ( BMNH), ‘C. Almora Du. / Kumaon U. P. / July’ 20 H.G.C. // H.G. Champion Coll. / B.M. 1953-156. [p] ’; 1 J 1 ♀ ( BMNH), ‘ C. Almora Diva / Kumaon U. P. / July [respective June] 1918 H.G.C. // H.G. Champion Coll. / B.M. 1953-156. [p]’ [all ‘ Kumaon’ specimens are provided by M. bifasciata identification labels by Z.H. Falin] ; 1 ♀ ( NHMB), ‘ Bhimtal [p] 7.vii 78 [hw] / 400m [p] // India, U. P. / F. Smetacek [p] ’. INDONESIA: JAVA: 1 ♀ ( BMNH), ‘G. Papandajan / West. Java. [hw] // Brit. Mus. / 1951 [p] – 348 [hw] // Macrosiagon / bifasciatum Mars. (?) [hw] / det. K.G. Blair [p]’. SUMATRA: 6 ♀♀ ( JHCP), ‘ Indonesia / W. Sumatra / 7.1991 [p] ’; 2 ♀♀ ( JHCP, JBCP), ‘W. Sumatra / Padang / 7.1994 [p] ’. LAOS: 1 J ( JHCP), ‘ Laos / Huaphanh prov. / Ban Sulei env. / 30km S of Xam Neua // Phou Pan mts. 1500m / 6.- 17.5.2004 / 103°59′33″E / 20°13′39″N, P. Kresl leg. [p] ’. NEPAL: 1 J ( JHCP), ‘W-Nepal, Buri Gandaki, / Sudi-Labubesi , 1300- / 1650m, 27. Mai 1990 / leg. Probst [p] ’. PHILIPPINES: NEGROS: 1 ♀ ( ZMHB), ‘ Philippinen: Isl. Negros / Prov. Negros Oriental / Mt. Talinis – Valencia / N of Dumaguet, 1986/87 / leg. J. Settele & R. Vendiola [p, yellow label] ’. VIETNAM: 1 ♀ ( JBCP), ‘ Vietnam North / Sa Pa / 6.- 25.5.1990 / O. Šauša lgt. [p] ’.

Remarks. Macrosiagon medana was provisionally regarded as a valid species closely related to M. bifasciata by BATELKA (2007a). Additional material from Java, Sumatra and Vietnam shows that the color variability of the pronotum and the more robust female specimens have no taxonomic value. The typical M. bifasciata occurs (probably syntopically) with M. medana in Sumatra and some intermediate forms occur there as well. Unusual color variability associated with the pronotum (only females are known from Sumatra) seems to represent just a local divergence of the southernmost population. Such regional color variability is also exhibited by M. bimaculata ( Fabricius, 1787) , wherein some specimens of the westernmost population in Spain and the easternmost population in Iran have an entirely black pronotum. They occur sympatrically or even syntopically with typically colored specimens with an orange pronotum ( BATELKA 2008b) while throughout the remainder of the distribution specimens with a black pronotum are missing.

Distribution. Palaearctic and Oriental species. China (Beijing, Fujian, Sichuan, Yunnan), Indonesia (Sumatra), Japan, Nepal, North and South Korea ( BATELKA 2008a). It is recorded here from West Bengal (Darjeeling district), Himachal Pradesh and Uttar Pradesh (all India), Java ( Indonesia), Laos, Philippines, and Vietnam for the first time.