Hylaeus (Hylaeus) tsingtauensis ( STRAND, 1915 )

Dathe, Holger H., 2015, Studies on the systematics and taxonomy of the genus Hylaeus F. (10) New descriptions and records of Asian Hylaeus species (Hymenoptera: Anthophila, Colletidae), Beiträge Zur Entomologie = Contributions to Entomology 65 (2), pp. 223-238 : 232

Hylaeus (Hylaeus) tsingtauensis ( STRAND, 1915)

Figures 19, 20

Prosopis tsingtauensis STRAND, 1915: 62-63 . 1♀. Holotypus coll. SDEI Müncheberg ( Fig. 20 ). Type locality: China, Tsingtau [Dsingdao, Shandong Prov.]. – IKUDOME 2013: 4.

Hylaeus pallescens COCKERELL, 1924a: 279–280 . 1♀. Holotypus coll. NMNH Washington. Type locality: Russia: “Okeanskaja, Siberia” (Vladivostok, Primorskiy Territory). Synonymised by IKUDOME 2013: 4. – PROSHCHALYKIN & DATHE 2012: 16. PROSHCHALYKIN 2014 a: 484; PROSHCHALYKIN 2015: 7.

Hylaeus (Hylaeus) stentoriscapus DATHE, 1986a: 271–273 . ♀, ♂. Holotypus ♂ coll. MLU Halle (Saale). Type locality: Mongolia: “Charchiraa uul, Ulaangom Umgebung”. Synonymised by PROSHCHALYKIN & DATHE 2012: 16. – KONUSOVA & YANUSHKIN 2000: 284; PROSHCHALYKIN 2003a: 26; 2004: 3; 2007a: 882; 2007b: 89; 2008: 6; 2010: 509; IGNATENKO 2004: 112; IGNATENKO & PROSHCHALYKIN 2005: 244; EREMEEVA et al. 2006: 26; KONUSOVA et al. 2007: 213; QUEST 2009: 123; EBMER 2011: 13.

Prosopis stentoriscapus: OSYTSHNJUK & ROMANKOVA 1995: 486 .

Discussion: This species is also apparently considerably more widely distributed than previously thought ( DATHE 1986a: 273, PROSHCHALYKIN & DATHE 2012: 17, PROSHCHALYKIN 2014 a: 484). It was first described by STRAND (1915) from China (Dsingdao, Shandong Province), as Prosopis tsingtauensis ( IKUDOME 2013) .

A further form is now known from Sichuan Province, which however is slightly different. This is represented by four males, which although slightly smaller than the previously known specimens, are otherwise morphologically very similar, especially with respect to the male terminalia. However, these specimens differ by being clearly darker, having conspicuously large scapi that are completely dark except for a small white fleck at the tip ( Fig. 19 ), and their mandibles and mostly also the pronotum are black. The mesosoma is conspicuously hairy. These characters are presumably a result of the higher altitude (1300 m) at which the specimens were collected.

Distribution: Mongolia; Asian part of Russia (Tomsk Province, Kemerovo Province, Khakasia Republic, Altai Republic, Irkutsk Province, Buryatia, Zabaikalskiy Territory, Amurskaya Province, Jewish Autonomic Province, Primorskiy Territory, Khabarovsk Territory ( PROSHCHALYKIN & DATHE 2012); China (Beijing, Shandong Province, Sichuan Province, Henan Province). The records from Beijing and the Henan Province are new.

New records:

CHINA. Sichuan Province: nr Maoxian , 31°45.111N 104°00.021E, stream, 4265 ft, 25.05.2011, leg. J.S. Ascher, L. Ding, Z. Niu, J.G. Rozen. – Henan Province: Luoyang, Longmen Grottoes , 10.08.2009 1 ♂ 2 ♀, 14.08.2009, 1 ♀ leg. J.S. Ascher, C. Dong ; Mt. Song, San Huang Zhai , 12.08.2009, 1 ♂ 1 ♀ leg. J.S. Ascher, C. Dong ; Pro Shaolin Temple , 12.08.2009, 7 ♂ 2 ♀ leg. J.S. Ascher, C. Dong. – Beijing: Beihai Park , 08.08.2009, 2 ♀ leg. J.S. Ascher, C. Dong ; Beijing Botanical Garden , 39°996'N 116°206'E, 77 m, 19.05.2011, 3♂ 2 ♀ leg. J.S. Ascher, F. Yuan ; Huyu Natural Scenic Area , 40°275'N 116°146'E, 243 m, 19.05.2011. 1 ♀ leg. J.S. Ascher, L. Ding, X. Niu ; Chaoyang Park, West Gate , 18.06.2011, 11 ♂ 11 ♀ leg. J.S. Ascher, C. Dong.

Figures

Figs 19, 20: Hylaeus (Hylaeus) tsingtauensis (STRAND): head in frontal view. – 19 Male from Sichuan, near Maoxian, China. – 20 Holotypus female from Qingdao (“Tsingtau”), China, coll. SDEI. – Scale 0.5 mm.