©Slovenian Entomological Society, download unter www.biologiezentrum.at LJUBLJANA, DECEMBER 2001 Vol. 9, No. 2: 105-111 CERATOPHYLLUS (MONOPSYLLUS) CARNIOLICUS, NEW FLEA SPECIES FROM THE FAMILY CERATOPHYLLIDAE (SIPHONAPTERA) Savo BRELIH and Tomi TRILAR Slovenian Museum of Natural History, Presernova 20, P.O.Box 290, SI-1001 Ljubljana, Slovenia, e-mail: ttrilar@pms-lj.si Abstract - We describe a new species of flea from the subgenus Monopsyllus found in the nests of Glis glis in Mt. Snežnik (Slovenia). Ceratophyllus {Monopsyllus) carniolicus sp. n. is a very rare species whose ecology and major host are as yet unknown. Key words: Siphonaptera, new species, Glis glis, Slovenia. Izvleček - CERATOPHYLLUS (MONOPSYLLUS) CARNIOLICUS, NOVA VRSTA BOLHE IZ DRUŽINE CERATOPHYLLIDAE (SIPHONAPTERA) Opisujeva novo vrsto iz podrodu Monopsyllus, ki je bila najdena v gnezdih navadnega polha (Glis glis) na Snežniku. Ceratophyllus (Monopsyllus) carniolicus sp. n. je zelo redka vrsta, katere ekologije in glavnega gostitelja še ne poznamo. Ključne besede: bolhe (Siphonaptera), nova vrsta, navadni polh (Glis glis), Slovenija. Introduction In the catalogue of the family Ceratophyllidae Lewis (1990) lists 10 species (only one of which is polytypic) for the subgenus Monopsyllus. Ceratophyllus (Monopsyllus) vison Baker, 1904 is the only species distributed in North America (USA, Canada). The majority of the species occupy eastern and northern Asia, from 105 ©Slovenian Entomological Society, download unter www.biologiezentrum.at Acta eiltomologica, 106 (2), 2001 Japan and Taiwan through eastern and northern China and Mongolia to the mid-Asian part of Russia. Ceratophyllus (M.) indages Rothschild, 1908 is further distributed in southern Finland. Areas west and southwest of these are occupied by C. (M.) sciurorum (Schrank, 1781), which is polytypic, containing two subspecies. The nominate subspecies is distributed throughout Europe, Asia Minor, Palestine and the Asian part of Russia as far as the Yenisei and the Angara. The subspecies C. (M.) asiaticus Ioff, 1936 is distributed from Afghanistan to Lake Balkhash. In Slovenia the nominate subspecies is one of the most common sylvatic fleas. In the present paper we describe a new species from the subgenus Monopsyllus, found in fat dormouse (Glis glis (Linnaeus, 1766)) nests in Mt. Snežnik and compare it with the nominate subspecies of C. (M.) sciurorum. This is the fifth contribution from the series »Ectoparasitical Entomofauna of Yugoslav (=Western and Central Balkans) Mammals« (Brelih & Petrov, 1978; Brelih, 1986; Brelih & Trilar, 2000a, 2000b). Ceratophyllus (Monopsyllus) carniolicus sp. n. Ceratophyllus {Monopsyllus) sp., Brelih & Trilar (2000b), Acta entomologica slovenica, 8(2): 175. Material: Slovenia: 1$ Snežnik: Sviščaki, 1250 m, utm: VL45, 22. 7. 1997, from 1 nest of Glis glis, leg. T. Trilar 2$ same data, 3. 9. 1999 IS same data, 30. 10. 1999, from 2 nests of Glis glis The holotype male (PMSL-IA-P-9479), a paratype female (PMSL-IA-P-9480) and 3 paratype males (PMSL-IA-P-9476-9478) are all from Sviščaki in Mt. Snežnik (Slovenia). All other data are given above. The type material resides in the Slovenian Museum of Natural History in Ljubljana (PMSL - Prirodoslovni muzej Slovenije v Ljubljani, coll. T. Trilar). Diagnosis: Male Ceratophyllus {Monopsyllus) carniolicus sp. n. differ from C. (M.) sciurorum in possessing a slender, elongate well developed sternum VIII ending with a single long bristle. Females are characterized by the outline cf sternum VII and the smaller number of long bristles on sterna IV VII. Description: Male and female are similar in most characters to C. (M.) sciurorum but differ in the following ways: Male: In C. (M.) carniolicus sternum VIII is long and slender. The plate length approaches or exceeds three times the maximum width of the base and terminates in a single, long bristle (Fig. 3a, b). While the maximum width of sternum VIII in C. (M.) sciurorum is similar to that of the new species the length is much shorter so that 106 S. Brelih, T.Trilar: Cevatophyllus (Monopsyllus) carniolius, new flea species from the family Ceratophyllidae 78901234567890 1234 5678901 2 Fig. 1: Locus typicus of Cevatophyllus (Monopsyllus) carniolicus sp. n.: Sviščaki, Mt. Snežnik, Slovenia (black circle) and the survey site of Cevatophyllus CMonopsyllus) sp.: Litija, Slovenia (white circle). length only approaches twice the maximum width of the base. In the nominate species sternum VIII also varies considerably in shape and in a few specimens a short bristle is developed near the terminus of the elongate portion of the plate (Fig. 4c). Female: The single female specimen of the new species from Mt. Snežnik differs in the outline shape of sternum VII (Fig. 5a) and in bristle number and placement. Specimen posses two long bristles on each side of sternum VII posterior to 2 or 3 short bristles. Sterna VII of C. (M.) sciuvovum posses 4 or 5 (and occasionally 3) long bristles and from 5 to 14 short bristles arranged in 1 or 2 irregular rows (Fig. 5b). In the females from Mt. Snežnik the average number is 9.2. In the paratype female of the new species there are 3 long bristles on sterna IV VI. Specimens of C. (M.) sciuvovum usually possess 4, sometimes 5, and a few specimens have only 3, but in all cases they are restricted to the same region on the sternum. The paratype female spermatheca (Fig. 7a) differs in bulga and hylla from the spermatheca of C. (M.) sciuvovum (Fig. 7c, d). The spermatheca of specimens of C. (M.) sciuvovum show considerable intrapopulation variation. As only one female specimen of the new species is available, we do not presently know how variable this trait may be. Among 38 localities in the territory of the Western and Central Balkans (= former Yugoslavia) we examined over 11.000 flea specimens from the subgenus Monopsyllus (Trilar 1997; Brelih & Trilar, 2000b). Only five specimens from four of different nests from Mt. Snežnik belong to the new species of flea from Slovenia. We are not able to confirm the taxonomic status of a single female specimen from 107 ©Slovenian Entomological Society, download unter www.biologiezentrum.at Acta eiltomologica, 108 (2), 2001 Fig. 3: Ceratophyllus (Monopsyllus) carniolicus sp. n.: sternum VIII of male: a. holotype; b. paratype. 108 S. Brelih, T.Trilar: Cevatophyllus (Monopsyllus) carniolius, new flea species from the family Ceratophyllidae Fig. 4: Ceratophyllus {Monopsyllus) sciurorum sciurorum (Schrank): sternum VIII of male: a, b. Novi Svet, Hotedršica, Slovenia; c, d. Sviščaki, Mt. Snežnik, Slovenia. Fig. 5: Sternum VII of female: a. Ceratophyllus {.Monopsyllus) carniolicus sp. n., paratype; b. Ceratophyllus {Monopsyllus) sp., Litija, Slovenia. 109 ©Slovenian Entomological Society, download unter www.biologiezentrum.at Acta eiltomologica, 9 (2), 2001 b. Sviščaki, Mt. Snežnik, Slovenia. Fig. 7: Spermatheca of female: a. Ceratophyllus (Monopsyllus) carniolicus sp. n., paratype; b. Ceratophyllus {Monopsyllus) sp., Litija, Slovenia; c, d. Ceratophyllus (Monopsyllus) sciurorum sciurorum (Schrank): Sviščaki, Mt. Snežnik, Slovenia. 9 S. Brelih, T.Trilar: Cevatophyllus (Monopsyllus) carniolius, new flea species from the family Ceratophyllidae Litija (central Slovenia) whose sternum VII (Fig. 5b) does not clearly differ from that of the new species C. (M.) carniolicus, but is, with respect to the spermatheca (Fig. 7b) and the number of bristles on sterna IV VI, more like C. (M.) sciurorum. All specimens of the new species were collected from the nests of Glis glis built in the wooden nest boxes in the Sviščaki area (Mt. Snežnik, Slovenia) 1250 m above sea level. They are very rare representing less than 0.1% of the Monopsyllus specimens we examined. The ecology and the major host of Ceraiophyllus (Monopsyllus) carniolicus sp. n. are unknown at this time. Acknowledgements We would like to thank academician Professor Bohumir Rosicky, Praha, Czech Republic, for his advice and comments. We gratefully acknowledge the assistance of Prof. James E. Platz (Creighton University, Omaha, Nebraska) for his suggestions and help with the English version of this manuscript. The research in Slovenia was financially supported by the Ministry of Science and Technology of the Republic of Slovenia (project J1-7409). References Brelih, S., Petrov, B., 1978: Ectoparasitical entomofauna of Yugoslav mammals. I. Insectivora and Siphonaptera stated on them.- Scopolia, 1: 1-67. Brelih, S., 1986: Ectoparasitical entomofauna of Yugoslav mammals. II. Siphonaptera from Dinaromys bogclanovi and Chionomys nivalis (Rodentia: Cricetidae).- Scopolia, 11: 1-47. Brelih, S., Trilar, T., 2000a: New Data on Siphonaptera from Dinaromys bogclanovi (Rodentia: Muridae).- Scopolia, 43: 1-22. Brelih, S., Trilar, T., 2000b: Siphonaptera of squirrels and dormice (Rodentia: Sciuridae, Gliridae) from the Western and Central Balkans.- Acta entomologica slovenica, 8(2): 147-189. Lewis, R.E., 1990: The Ceratophillidae: Currently accepted valid taxa (Insecta: Siphonaptera).- Koeltz Scientific Books, Koenigstein, pp. 267. Traub, R., Rothschild, M., Haddow, J.F., 1983: The Rothschild collection of fleas. The Ceratophyllidae: Key to the genera and host relationships with notes on their evolution, zoogeography and medical importance.- Academic Press Inc. London, pp. 288. Trilar, T., 1997: Ectoparasites from the nests of the fat dormouse (Glis glis).-Natura Croatica, 6 (4): 409-422. Received / Prejeto: 11.4. 2001 7