Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 97. (Budapest 2005)

Papp, L.: New species of Lygistorrhinidae (Diptera) from the Oriental Region

0.53 mm long, fore metatarsus 0.515 mm. Fore and mid tarsi are thin. No tibial spur on fore tibia, but I do not see a spur either on mid tibia. Hind tibia baseball-bat shaped, length 1.12 mm, hind metatarsus 0.61 mm long, breath 0.11 mm. Hind tibia with a 0.19 mm long medial and a 0.09 mm long lateral spur. Wing (Fig. 11 ) uniformly brown, not spotted. Costal and radial veins light brown, other veins lighter brown. Vein R, reaches 0.99 mm from wing base, i.e. ends at 0.42 of wing length. Costal vein thick from its conjointment with R, to its apex. Costa ends at 13/19 of distance of R

5 and M,. R

5 widely S-shaped. M-Cu fork complete, Cu, joins base of R close to wing base. M

2 complete, i.e. well pigmented to the base of fork, M, nearly so; stalk of M fork is as faint as in the other two species. Cu, curved arched; Cu, straight, parallel to Cu,, and continued slightly distally to base of M-Cu, fork. A, faint and close to and parallel with hind wing margin. Halter black, base of stalk lighter, length 0.53 mm (holotype). Abdomen very thin and about as long as wing, tergites all dark. Tergite 9 (Figs 13-14) broad and slightly longer than gonocoxites; its basal part (Fig. 14) seems slightly shorter than that of the other two species. Tergite 8 (Fig. 12) with rather few microchaetae. Gonocoxites without any conspicuous armature. Gonostylus (Fig. 15) much shorter than gonocoxite, and conspicuously shorter that that of M. similis and M. yangi. Contrarily, its medial sub-basal megaseta stronger, and macrosetae less dense apically. Female unknown. Remarks - Matileola thaii sp. n. is an easily recognisable species. As for its wing venation (Fig. 11), it seems to be the most primitive species of the known lygistorrhinids. That is, wing venation is less reduced than in any other species. Contrarily to the other two species, also its fore coxae are dark. Its male genitalia are of the same structure as of the other two species, but there are distinct and well-discernible differences. Its gonostylus (Fig. 15) is definitely shorter and the sub-basal megaseta on gonostylus is stronger than in the other two species. There are much less microchaetae on tergite 8 (Fig. 12), than on that of the other two species (Figs 16-17). We may note, that by discovery of this species, Matileola L. PAPP has lost its status as being a genus "endemic for Taiwan". Matileola yangi L. PAPP, 2002 (Figs 17-21) Material examined - 6 males (HNHM, 2 males in TFRI):: TAIWAN: Taipei Hsien, Pinling, 319 m, No. 27, over/along Jinggua-liao river, April 17,2003, leg. L. PAPP; 1 male: ibid., Han-Lo-Dé, 450 m, No. 12, forest undergrowth, March 29-30, 2003; 1 male: ibid., Han-Lo-Dé, 450 m, No. 26, in forest of a gorge, April 13, 2003. Additional characters - This species was described on the basis of a single male, whose genitalia were not prepared while described. Now abdomen of two males were prepared and genital parts depicted.