Acta Zoologica Academiae Scientiarum Hungaricae

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Taxonomic re marks. - l. Since iis description Microchelonus nigritulus

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serious ly clam aged: l. Both antennae ab seni: 2. Middie and hi nil legs represente donly by coxae Φ trochaia ters. 3. Distat part of wings toria, test hind wing absent.

- Hinu femur Fig. 35) 3. 5 times as long as broad mediat ly. Hi nil tibia sonaewhat longer ilian hi nillarsus: pair os spurs of hi nil tibia uiae luat in tenglh. in ner spur jusl as long as hals basi tarsus. hi nil

Fixs 32 3. 32 39. Microcholonii, Pediator DAHI HOM): 32 α head in dorsal vicw. 33 α he ad in laterat view. 34 α anterior part os meson olum in laterat vi e w ssee arrow). 3 hi nil semur. 36 α se- male carapace in dorsal vlew. 3T se male carapace in laterat view. 38 posterior en d os semale ca- rapace in ventral vlew. 39 α posterior end os male carapace in frontal vlew. - 40 3. Microcho nux microohthalmus WESMAEL) 40 m anterior part os me sonotum in laterat vicw ssee arrow). 4l αhead in dorsal vlew. 42 α carapace in dorsal vicw willi an indication os iis sculpture. 43 posteriore nil os male carapace with soramen in si ora lal vlew

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rare species.

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I. PAPP

Palae arctic Region) severat are deviat ing. i. e. transitional to the genus Cheloni XConsidering their features characteristic to the sexes si antenna with more than l6 flagellonae res or 5: carapace apicatly without a foramen). Ne Veriheles s though the number of the deviat ing Microchelonus species is relative ly high. lconsider the taxon Microchelonus as a Valid genus closely relateis to Chelonus. Uil St, ns a ConsequenCe of this taxonomic concept. TOBIAS sl 986ti 3l l and 333)ranged the species Pedalor in the genus Microchelonus. Nine years later TOBIAS i 99 β 39. 42 44) accepted the subgenus Solocheloniis HELLEN and ranged the Microchelonus species in three sub genera: Microchelori HS S. sti . . PG1 GChe HuSTOBIAS. Stylochelon HS HELLEN).

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carapace Or abo ut as long as hi nil semur. 3 nam

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I. PAPP

the senior species, Chelori HS PulicitHS.

REFERUNCUS

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i ille l