Leptolythica vincenti, Vršanský, 2009

Vršanský, Peter, 2009, Albian cockroaches (Insecta, Blattida) from French amber of Archingeay, Geodiversitas 31 (1), pp. 73-98 : 85

publication ID

https://doi.org/ 10.5252/g2009n1a7

persistent identifier

https://treatment.plazi.org/id/754F87A2-9921-7071-FF6C-675FC0D9FE80

treatment provided by

Marcus

scientific name

Leptolythica vincenti
status

sp. nov.

Leptolythica vincenti n. sp. ( Figs 5 View FIG ; 13 View FIG )

TYPE MATERIAL. — Holotype specimen ARC-260.2, a complete immature.

TYPE LOCALITY. — Archingeay-Les Nouillers, Charente- Maritime, SW France.

STRATIGRAPHIC HORIZON. — Lower Cretaceous, uppermost Albian, lithological subunit A1sl2 sensu Néraudeau et al. (2002).

ETYMOLOGY. — After my colleague and friend Vincent Perrichot.

DESCRIPTION Head globular, 1.14 mm wide, eyes globular, comparatively small. Clypeus distinct (0.46/ 0.16 mm). Antenna very short, with only 37 segments, each with 1 (basal)-3 (apical segments) rows of 2-4 comparatively short sensilla chaetica. Scape 0.29 mm, pedicel 0.16 mm long. Third antennal segment the longest (0.31 mm), fourth the shortest (0.05 mm). All segments (except scape 0.15 mm at apex) very wide (0.1 mm). Labial palp slender, long (0.31/ 0.07 mm), with dense sensilla chaetica, very dense at apex (10 apical sensilla chaetica on dorsal side). Maxillary palp transparent, with distinct articulation, first segment short (0.22/ 0.09 mm), second distinct (0.73/ 0.35 mm),

third reduced to some extent (0.55/ 0.35 mm), the apical one very large (1.00/ 0.42 mm), with sparse sensilla chaetica.

Fore femur robust, short (0.85/ 0.29 mm) with two rows of 17 and 9 spurs along longitudinal posterior ridge, with large terminal spine. Tibia very short and robust (0.57/ 0.14 mm), strongly carinated, but with few sensilla chaetica. Tarsus robust, basitarsus (0.25/ 0.09 mm) with at least 5 apical sensilla chaetica and a longitudinal ridge, second (0.11/ 0.07 mm) and third (0.10/ 0.07 mm) segments without sensilla chaetica. Mid coxa comparatively short (0.48 mm), trochanter very distinct (0.33 mm), femur (1.21/ 0.4 mm) with two longitudinal central ridges, posterior margin with 8, anterior with 4 sensilla chaetica of diverse length. Mid tibia very long (1.61/ 0.22 mm), strongly carinated.

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