Lauroppia (Lauroppia) brevisimile, Mahunka & Mahunka-Papp, 2010

Mahunka, S & Mahunka-Papp, L, 2010, New And Little Known Oribatid Mites From The Carpathian Basin And The Balkan Peninsula (Acari: Oribatida), Acta Zoologica Academiae Scientiarum Hungaricae 56 (3), pp. 211-234 : 218-220

Lauroppia (Lauroppia) brevisimile sp. n.

( Figs 6–12 )

Material examined. Holotype: E-2564: Greece, Arkadia county , Tetrazi Mts. Ag. Theodora, oak forest the spring, 610 m, N37°20.96’ E21°59.342’, 05.04.2009. Leg.: L. DÁNYI , J. KONTSCHÁN, D. MURÁNYI, 2009/44 and 3 paratypes from the same sample. Holotype (1780-HO-10) and 2 paratypes (1780-PO-10): HNHM , 1 paratype: MHNG .

Diagnosis. Rostrum tripartite. Costula short, S-shaped. Lamellar seta arising on its distal end, shorter than the interlamellar seta. Sensillus unilaterally pectinate, its head slightly dilated medially. Crista present, median part of notogaster wide, straight anteriorly. Ten pairs of heterotrichous notogastral setae. Epimeral setae varying in length, seta 1a the longest of all. Some setae bifurcate or irregularly barbed. Genitoanal setal formula: 6–1–2–3.

Measurements. Length of body: 400–472 µm, width of body: 242–249 µm.

Prodorsum. Rostrum tridentate ( Fig. 7 ), median apex sharply pointed, longer and narrower than lateral ones ( Fig. 12 ). Rostral setae arising near to median apex. A pair of short, S-shaped interbothridial costulae present bearing short lamellar setae ( Fig. 10 ). Interlamellar setae longer and thicker than preceding ones, well barbed. Exobothridial setae bifurcate. All prodorsal setae short, length ratio: in> ro> ex> le ( Fig. 11 ). Bothridium with short, posterior lateral expansion. Sensillus ( Fig. 9 ) small, its head wide medially, bearing unilaterally 5–6 short and thick bristles. An additional costula with 2–3 maculae present laterally.

Notogaster. Anterior margin of notogaster with a straight ridge. Crista short and weak. Notogastral setae short and heterotrichous, setae c 2, la and lm almost twice as long as the other setae.

Lateral part of podosoma. Pedotectum I minute. Exobothridial surface well granulated, its posterior part covered with larger granules than in anterior part ( Fig. 11 ). Some longitudinal crests present, upper bearing exobothridial setae.

Ventral parts ( Fig. 8 ). Apodemes and epimeral borders composing a rather well closed network, all epimeres nearly equally wide. Apex of discidium sharply pointed. Epimeral surface mainly smooth, only some weak polygonate pattern visible. Epimeral setae strongly differing in length, setae 1c much longer than 1b, setae 3c bifurcate, setae 4b and 4c also long, with some short bristles basally. All genitoanal setae short and simple, lyrifissures iad in adanal position.

eral view, 12 = rostral part in lateral view

Remarks. The new species is well characterised by the tripartite rostrum, the S-shaped interbothridial costulae, the ratio of the prodorsal setae and the ratio and form of the epimeral setae. The new species is close to Lauroppia breviseta VASILIU et IVAN, 1999 . It may be distinguished from breviseta by the distance and shape of prodorsal apices (equal length in breviseta ), by the shape of interbothridial costulae (straight in breviseta ) and the form of medially dilated sensillus (setiform in breviseta ) (see VASILIU & CALUGAR 1999).

Etymology. The name refers to its relation ( L. breviseta VASILIU et IVAN, 1999 ).

Figures

Figs 6–12. Lauroppia (Lauroppia) brevisimile sp. n.: 6 = body in dorsal view, 7 = rostral part in dorsal view, 8 = body in ventral view, 9 = sensillus, 10 = basal part of prodorsum, 11 = podosoma in lat-