Sicilitrombium albanesianum, Aitlinger, 2013

Aitlinger, 2013, A new larval trombidiid, Sicilitrombium albanesianum nov. gen., nov. sp. (Acari: Prostigmata: Trombidiidae) from Sicily, Italy, with notes on Arknotrombium HAITLINGER 2007 and Javatrombium HAITLINGER 2009, Linzer biologische Beiträge 45 (2), pp. 1997-2004: 1998-2002

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Sicilitrombium albanesianum


Sicilitrombium albanesianum   nov.sp.

D e s c r i p t i o n. Idiosoma ornamented dorsally with 20 very fine barbed setae. Posterior setae h2 very long, barbed (in holotype broken). fD formula 6-4-4-4-2. One pair of eyes on each side. Scutellum oval, its width less than width of scutum ( Fig. 1). Scutum with rounded anterior margin and almost straight posterior margin. Posterior part of lateral sides slightly convex. Setae AM, AL and PL very weakly barbed, PL are the longest. Sensillary setae (S) covered with setulae distributed in the distal part of stem; located medially between AL and PL (visible in paratype), AP> MA ( Fig. 3).

Ventral side of idiosoma with two setae 3a and 10 very fine barbed setae behind coxae III, arranged 2-2-4-2. Coxala 1a and other coxalae, all barbed ( Fig. 2).

Gnathosoma with barbed hypostomalae and nude galealae. Posterior margin of gnathosoma rounded ( Fig. 2). Palpfemur with one thin and nude seta, palpgenu without setae. Palptibia with 3 nude setae; one of them distinctly longer than the remaining ones. Palp tibial claw divergent ( Fig. 4). Palptarsus with 2, 2 and 2 nude setae. fPp = N-O-NNN- NN ( Fig. 4, 5).

Leg lengths. I 296 holotype, 306 paratype, II 276, 282, III 291, 317. IP = 863 holotype, 905 paratype.

Leg setal formula. Leg I: Ta 1, 1, 2, 14 (3N, 11B), Ti 2, 1#, 5 (3N, 2B), Ge 1$, 1#, 4N, Fe 5 (3N, 2B), Tr 1B, Cx 2B ( Fig. 6).

Leg II: Ta 1, 1, 11 (1N, 10B), Ti 2, 5 (1N, 4B), Ge 1$, 1#, 3 (2N, 1B), Fe 4 (2N, 2B), Tr 1B, Cx 2B ( Fig. 7).

Leg III: Ta 10 (3N, 7B), Ti 5 (2N, 3B), Ge 1$, 3B, Fe 4 (2N, 2B), Tr 1B, Cx 1B ( Fig. 8). Metric data are given in Table 1.

E t y m o l o g y. The specific epithet is derived from the type locality.

T y p e. Holotype larva, Sicily, Piana degli Albanesi n. Palermo (38º00’N, 13º17’E), 6.06.2010, Italy, from herbaceous plants ( MNHWU) GoogleMaps   ; leg. R. Haitlinger. Paratype: one larva, Sicily, Castronuovo di Sicilia (Palermo prov.) (37º40’N, 13º36’E), 30.05.2010, Italy, from herbaceous plants, in MNHWU GoogleMaps   .


Tavera, Department of Geology and Geophysics