Acta Zoologica Academiae Scientiarum Hungaricae

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A REVISION OF THE ORIENTAL PTECTICUS STRATIO MYIDAE. DIPTER A)

Taxonomic notes: This species is ex te mally Very similar to P. longipenniSthough the abdomen appears to be much darker. However, rarely the abdominalyellow patieria may be considerably reduced in P. longipenni3 as weli and then themate terminalia exhibit a unique complex os distinguishing characters. The characteristic mediat proces s of the synsternite may be eas ity examine d in the males of both species even without any preparation since the genitalia a re frequently part ly

Diagno sis: The lower part of the frontal callus is dari ened and ali dark trans Verse balads on the abdomen reach the margins of tergites. Related to P. australiXSCHINER but usual ly with brownish basal l 2 2I3 of hi nil femur on o uter si de and without any surstyli on the epandrium in males.

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REFERENCES

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A REVISION OF THE ORIENTAL PTECTICUS STRATIO MYIDAE. DIGERA)

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Cata Ioue si

The Catalogue contains the basic taxonomic, nomenclatorialanci distribution data os ali species occurring in the Palaearctic Region with the fundamental morphological features for the ma

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NEW SPECIES AND RECORDS OF THE AXARUS ROGERSI GROUPV FROM SOUTH AND CENTRAL AMERICA DIPTERA. CHIRONOMIDAE)

INTRODUCTION

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MATERIAL AND METHODS

SYSTEMATIC PART

Diagnostic characterso This species groups with A. dorieteri and A. roge mi byhaving a modis ted anal potiat. However the Shape of the anal potni, with two rounded laterat. seto se iobes mediat ly and the large subtriangular setose lobes ontergite IX. lateralty to the base of the anal potiat eas ity separate A. s melilichi Sp. n. frona the two other species. The species can also be separated by iis larger si Ze. and by the wider more rounded gono Stylu S.

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SOUTH AND CENTRAL AMERICAN AXARUS DIPTER A. CHIRONOMIDAE,

Head. AR 3. 90 . 24. 4.ll. Antenna with li segments: ultimate flagellomere l. 68-l. 83 l. J9 nam long. Temporal setae 2J-32, 29. unisci tui. Clypeus with 33-54. 40 setae. Tentorium, stipes and

seti

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Distributioin and habitat: The species is known frona US A. Costa Rica and Nicaragua SPIES & REIS S l 996). The present paper adcis a record from s Outheast

Acknowledgements - Thanks are due to JEFERSON RODRIGO SILVA and PATRICIA A. ROss I sorsetting up the sield trip to Santa Rita de Cassia: to Dr. CLAUDIO G. FROEHLICH sor support through the Biota FAPESP program Bragil). to Dr. ATILANO CONTRERAs-RAMOS sor providing us willi materialfrona Mexico and to Prosessor OLE A. SIETHER sor commenting on the manuscript . GLADYS RAMIREZmade the sit de preparations. The stud y os Solith American Chironomidae was funded through the

REFERENCES