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

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

thicker than in M. yangi (its shape may be slightly different from that one on our figure, the process being half a cone, i.e. may be depressed at a different extent), but microtrichia are more sparse, particularly so on apex. Sternite 8 similar to that of M. yangi. Tergite 9 (Figs 8-9) similar to that of M. yangi but its macrosetae seem slightly shorter. The most anterior ring and its stalk are normally inside the T8+S8 space. Both cerci+proctiger and inner genitalia are hidden deep (rather anteriorly) under T9. Gonocoxites fused on a short section ventrobasally (as in Fig. 21); gonocoxites without any conspicuous armature, but with a narrow, twice angularly bent medial process (Fig. 7, only medial edge of gonocoxites depicted). Gonostylus (Fig. 5) not shorter than medial edge of gonocoxite, at its apical third ca. 1.5 times broader than basally, with widely rounded apex and with an apico-medial tooth as in M. yangi. Inner genitalia (Fig. 6) structurally similar to those of M. yangi (cf. Fig. 21 ), possibly lateral sclerites of aedeagus somewhat stronger. Female unknown. Remarks - Matileola similis sp. n. is a close relative of M. yangi L. PAPP. However, it is easily distinguishable from the latter species by its dark halter (that is yellow in M. yangi). The differentiating features the in male genitalia are small but definite. Microtrichia on abdominal tergite 8 are sparse, and even the shape of T8 is slightly different (Figs 15-16). The shape of gonostylus is different: the gonostylus of M. similis (Fig. 5) is longer than that of M. yangi (Fig. 20). Matileola thaii sp. n. (Figs 11-15) Type material - "Holotype male (HNHM, damaged, fore legs and left hind leg lost): Thailand, Doi Phuka NP. No. 18, 26-27. 11. 2003 - UV light, leg. Peregovits, Földvári, Körösi, Szappanos & Maklári-Kis". Paratype male (HNHM, left mid leg lost, thorax damaged, left wing prepared on a slide, right wing glued under the minuten pin; abdomen and genitalia in a plastic microvial): same dala. Fig. 11. Matileola thaii. sp. n., paratype male, left wing dorsally