Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 70. (Budapest 1978)

Papp, L.: Contribution to the revision of the Palaearctic Lauxaniidae (Diptera)

comparatively long pile, indicating identity with opaca, shape and setal formula of sternite 8 definitely prove that this specimen is conspecific with opaca BECK. S. pellucida BECKER, 1895: 234, 191, is a new synonym of Sapromyza sexpunctata MEIGEN, 1830. — Material studied: 2 syntype 9 (no more type-specimens were found in the collection of the Zoological Museum, Berlin): "Görtz, 2/VI." "pellucida BECK." (on one of them) "SCHNABL'S S. 36554" ( on the other) "Polen". Frons as dull as in sexpunctata, also orbitalia quite the same, the structure of the head, the length of acrosticals, wing venation and postabdominal sclerites are likewise identical with sexpunctata females. The specimens, which Mrs. E. REMM collected in the Baltic republics of the USSR, belong to a new species (see REMM 1978, cf. REMM 1972). S. quadricincta BECKER, 1895: 234, 191, is a new synonym of Sapromyza bipunctata MEIGEN, 1830. — Material studied: holotype •? : "Herculesbad, 8. 6. 871", 11612, "Coll. H. LOEW", "quadricincta BECKER" (latter label with BECKER'S hand-writing). Synonymy is established by studying the ? genitalia. S. rabdota BECKER, 1895: 212, 185, is a new synonym of Sapromyza bisigillata RONDANI, 1866. — Material studied: holotype $ : "Triest, 5/6. 40740" — Typus — "Rabdota BECK." (BEKKER'S hand-writing). The used features in distinguishing (BECKER 1895:185) it from bisigillata are all variable: holotype possessing only cne pair cf st seta. Though I have found a specimen (Poros, Krüper) determined by KERTÉSZ as bisigillata ROND, which had on the right side one strong and one thin st, on the left side only one st seta; the other specimen collected alongside with it had 2 pairs of strong st seta. The feature that the apex of the third antennái joint of bisigillata is brownish, while the same of rabdota entirely yellow, again are unstable. Finally, the two parallel brown bands on the thorax are difficult to perceive both on the holotype of rabdota and also on other specimens examined by me; further, BECKER described bisigillata without bands, while rabdota with bands, on the other hand, CZERNY (1932: 47) said the exact opposite. As far as the vein portion t

u-t

p of bisigillata ROND, is concerned (m

x = 2.0), I believe RONDANI was, as he was in several other instances too, somewhat doing it on the large scale, almost superficial when giving comparative characteristics. Thus, although I had not the opportunity to examine the holotype of bisigillata (it is not included in RONDANI'S collection, thus, its whereabouts is unknown) still I consider rabdota BECKER, 1895 to be a new synonym of bisigillata RONDANI, 1868. S. setiventris ZETTERSTEDT, 1847, sensu BECKER, and CZERNY is conspecific with Sapromyza apicalis LOEW, 1847. — Material studied: several specimens identified by BECKER and CZERNY. By genitalia preparation it was proved not only the above statement but also the fact that the specimens of apicalis Lw. may have completely yellow palpi. BECKER did not know the type of ZETTERSTEDT, he identified the specimens (mainly 9 9 ) on the basis of the original description, which had very long bristles on the abdomen, partly black third antennái joint and not black palpi, as setiventris ZETT. CZERNY accepted BECKER'S opinion without changes. Lauxania LATREILLE, 1804 Callixania subg. n. (Figs. 33, 40) Head 1.35 times higher than long, anterior part of frons strongly concave, base of antennae strongly protruding (Fig. 33). Upper 3/5 of facial plate convex. Anterior ors proclinate and inclinate, posterior ors reclinate and exclinate. First antennái joint not longer than second. Third antennái joint less than twice longer than two basal joint combined. 0 + 2 dc pairs. No dorsal preapicals on mid and hind tibiae. Wings yellow, alar base black. Male genitalia (Fig. 40) very characteristic and differing completely from tohse of the species of Calliopum STRAND and of Lauxania cylindricornis (FABR.) (cf. Figs. 35, 39). Surstylus coalescent with hypopygium, a second (posterior) pair of hypopygial processes also present (these latter meet in the sagittal line; dotted part on Fig. 40. Phallus is of a very complicated form (it has 2 median and 7 pairs of lateral appendages). No thick thorns on the ventral base of the genitalia present. Type-species: Lauxania minor MARTINÉK, 1974. Callixania (Calli[opum] + [Laujxania, feminine) subg. n. differs from the nominate subgenus by the structure of face, the short first antenna! joint, the inclinate anterior ors