Taiwanomyrme Tsuneki, 1993

Tu, Bin-Bin, Lelej, Arkady S. & Chen, Xue-Xin, 2015, Review of the genus Taiw ano my rme Tsuneki, 1993 (Hymenoptera, Mutillidae, Mutillinae), with description of two new species from China, Zootaxa 4020 (3), pp. 588-600 : 589-590

Genus Taiwanomyrme Tsuneki, 1993

( Figs 1–7 )

Taiwanomyrme Tsuneki 1993: 44 (as subgenus of Smicromyrme Thomson, 1870 ); Lelej 1995: 2 (as genus), 1996: 6, 2002: 81, 2005: 76.

Type species: Smicromyrme taiwanus Tsuneki, 1993 , ♂, Taiwan, by original designation (junior subjective synonym of Mutilla friekae Zavattari, 1913 , ♂, new synonym).

Gender. Masculine (Article 30.2.4 of the ICZN 1999; Lelej & Brothers 2008). Because the gender of Taiwanomyrme is masculine the endings of adjectival specific names are changed to agree where necessary.

Diagnosis. MALE. Mandible basally beneath neither emarginated nor toothed. Scape beneath with one or two carinae (usually one stronger); flagellomere 1 subequal to flagellomere 2. Mesoscutellum evenly convex, not at all gibbous, without median longitudinal carina. Tegula long, extending beyond posterior margin of mesoscutum. Metasomal tergum 2 with well developed lateral felt line; sternum 2 with short lateral felt line (sometimes reduced to a few microsetae). Volsellar cuspis long, shorter than gonostylus, with small paracuspis; penial valve apically swollen or hook-like. FEMALE. Clypeus anteriorly transversely concave, posteriorly triangularly elevated, punctate. First flagellomere 1.5 × as long as flagellomere 2; antennal tubercle carinate above. Scutellar scale present, narrow or wide. Metasomal sternum 1 with simple longitudinal carina. Pygidial area smooth or microstriate, laterally carinate. Mesosoma black, metasoma black with segments 1–3 and legs ferruginous-red.

Distribution. Palaearctic and Oriental China (Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Hunan, Sichuan, Guizhou, Yunnan, Taiwan).

Species included. Five species: T. friekae ( Zavattari, 1913) , ♂, T. impressus ( Chen, 1957) , ♂, T. impressoides Tu, Lelej et Chen , sp. nov., ♂, T. basirufus ( Chen, 1957) , ♂, ♀ and T. latisquamula Tu, Lelej et Chen , sp. nov., ♀.

Sex association. The female of the type species has not been recognized; the female of another species was associated and identified as Smicromyrme basirufus ( Chen 1957) .

Remarks. This genus is placed in the tribe Petersenidiini and includes males with symmetrical genitalia. The male of Taiwanomyrme is similar to that of Radoszkowskitilla Lelej, 2005 from India and Sri Lanka by having the mandible beneath without a large basal tooth, but differs by having metasomal sternum 2 with a very short lateral felt line (metasomal sternum 2 without any lateral felt line in Radoszkowskitilla ), the scape beneath with two carinae (scape beneath polished in Radoszkowskitilla ), the volsellar cuspis long with a small paracuspis (volsellar cuspis only slightly longer than penial valve, without a paracuspis in Radoszkowskitilla ). The male of Taiwanomyrme is similar to that of the Oriental genus Promecidia Lelej, 1996 in the tribe Trogaspidiini ( Lelej 1996, 2005) by having the mandible not excised beneath basally and by the simple mesoscutellum, but differs in the long symmetrical penial valves (short slightly asymmetrical penial valves in Promecidia). In the tribe Petersenidiini the female of Taiwanomyrme is similar to that of Radoszkowskitilla by having black mesosoma , but easily differs by having not elongated mesosoma (1.4 × as long as its maximum width vs. 1.85 × in Radoszkowskitilla ), disc of metasomal tergum 2 neither flattened nor carinate laterally (disc of metasomal tergum 2 flattened and longitudinally carinate laterally in Radoszkowskitilla ). The differences of female of Taiwanomyrme from other ones of the tribe Petersenidiini with the similar shape of pygidial area are given in the key below.

Females may be added to the key to Oriental genera of the tribes Petersenidiini and Trogaspidiini ( Lelej 2005, p. 151) as follows (additional couplet in bold):

8. Metasomal tergum 2 with wide apical pale fascia (Figs 205, 207)............................. 36. Krombeinidia Lelej - Metasomal tergum 2 without apical pale fascia, at most with pale fringe........................................ 9 9. Mesosoma black. Metasomal segment 2 ferruginous-red, at most with posterior black border .....................

............................................................................. 41. Taiwanomyrme Tsuneki - Mesosoma ferruginous-red. Metasomal segment 2 entirely black ............................................ 9a 9a. Scutellar scale broad, carinate, 0.25–0.3 × as broad as propodeum width. Pygidial area finely rugoso-punctate.............

............................................................................. 42. Zavatilla Tsuneki (p. 77) - Scutellar scale narrow, pointed. Pygidial area almost smooth, at most micropunctate... 39. Petersenidia Lelej (p. 70)

Figures

FIGURE 1. Taiwanomyrme impressoides sp. nov., ♂, holotype. A. Habitus, lateral view. B. Mesosoma, dorsal view. C. Right fore wing. D. Metasoma, dorsal view. E. Head, frontal view. F. Head, dorsal view. G. Head, lateral view. H. Metasomal tergum 7, dorsal view. Scale lines = 0.5 mm.

FIGURE 2. A, C, E. Taiwanomyrme impressoides sp. nov., holotype, ♂. B, D, F. T. impressus (Chen), ♂, Fujian. A, B. Clypeus. C, D. Antenna. E, F. Mandible. Scale lines = 0.5 mm.

FIGURE 3. Genitalia of males. A, B. Taiwanomyrme impressoides sp. nov., holotype. A. Dorsal view. B. Ventral view. C, D. T. impressus (Chen), China, Fujian. C. Dorsal view. D. Ventral view. Scale lines = 0.5 mm.

FIGURE 4. Genitalia of males. A, B. Taiwanomyrme basirufus (Chen), Zhejiang. C, D. T. friekae (Zavattari), Zhejiang. A, C. Dorsal view. B, D. Ventral view. Scale lines = 0.5 mm.

FIGURE 5. Taiwanomyrme latisquamula sp. nov., ♀, holotype. A. Habitus, lateral view. B. Mesosoma, dorsal view. C. Metasoma, dorsal view. D. Head, frontal view. E. Head, dorsal view. F. Head, lateral view. G. Pygidium. Scale lines = 0.5 mm.

FIGURE 6. Taiwanomyrme basirufus (Chen), ♀, Zhejiang. A. Habitus, lateral view. B. Mesosoma, dorsal view. C. Metasoma, dorsal view. D. Head, frontal view. E. Head, dorsal view. F. Head, lateral view. G. Pygidium. Scale lines = 0.5 mm.

FIGURE 7. Distribution map of five species of Taiwanomyrme.