Clada (Clada) fasciata, Zahradnik, Petr & ryzna, Milos, 2018

Zahradnik, Petr & ryzna, Milos, 2018, Nine new species of Clada from Madagascar (Coleoptera, Ptinidae), ZooKeys 806, pp. 121-140 : 121

Clada (Clada) fasciata sp. n. Figs 3, 12, 21, 30

Type material.

Holotype male: Madagascar, Antananarivo prov., Manankazo env., 15.-17.xii.1996, I. Jeniš lgt. (FGMRI).

Differential diagnosis.

The species is similar to C. (C.) lineatipennis Pic, 1926, which has black coloured elytra, and C. (C.) costipennis Kolbe, 1897, C. (C.) flabellicornis Pic, 1936 and C. (C.) multistriata Pic, 1952 whose males have pectinated antennae. Differs also by shape of the aedeagus. For differences from other Madagascan species, see key.

Description.

Male (holotype). Elongate-elliptical, transversally convex. Body length 6.0 mm, maximum width 2.6 mm (Figure 3). Ratio length:width of elytra 1.7. Body, including antennae, maxillary and labial palpi and legs, brown. Only pronotum piceous brown. Pubescence white.

Head shiny, with double punctation - first coarse, dense, umbilicate, distance between punctures approximately the same as their diameter; other very fine, punctures almost touching. Pubescence more or less recumbent, long, inclined backwards; on vertex inclined backwards. Clypeus with transverse depression. Eyes large, globular with short erect sparse pubescence. Frons 3 times as wide as diameters of the eye, from dorsal view. Antennae probably consisting of eleven antennomeres (they are damaged, only 7 antennomeres remain), from 4th pectinate (Figure 21). 1st antennomere robust, twice as long as wide; 2nd as wide as 1st, 0.3 as long as 1st, 0.8 times as wide as long. 3rd strongly serrate, 1.1 times as wide as long. 4th and 5th 2.5 times as wide as long. 6th 3 times as wide as long; 7th 2.7 times as wide as long. All antennomeres with very short recumbent dense pubescence, 1st also with sparse long semi-erect setae. Apical maxillary palpomere long, slim, spindle shaped.

Pronotum convex, matt-shiny, transverse (ratio length:width of pronotum 0.7); widest in middle. Middle of the pronotum with blunt small swelling. Surface of pronotum with coarse, dense, umbilicate punctuation; punctures almost touching. Pubescence long, dense, semi-erect, inclined more or less from middle of pronotum to all sides.

Scutellum large, triangular, narrow, 1.2 times as long as wide, very densely recumbent pubescence, inclined backwards, surface shining, finely punctated; punctures almost touching.

Elytra oval, transversally convex, shining, humeri almost absent. Each elytron with six fine costae, covered with white recumbent dense pubescence, inclined backwards and from sides of costa to their centre. Surface of elytra with double punctation - one coarse, dense, umbilicate, almost touching; other is very fine, punctures also almost touching. Pubescence between stripes relatively sparse, recumbent or semi-erect, inclined backwards. Posterior margin of each elytron with approximately 20 small teeth, almost invisible.

Legs stout, with long, dense, recumbent pubescence. All tarsi robust, same length as tibia. 1st metatarsomere as long as 2nd and 3rd together, same width, slightly emarginate on top, 4th slightly shorter than previous, more emarginate, almost to 2/3 of their length. 5th the same length as 3rd and 4th together, rectangular, wider on the top, with two large claws, without teeth.

For aedeagus see Figure 30.

Female. Unknown.

Name derivation.

Derived from the rows of dense recumbent hairs on elytra, from Latin word fascia, meaning stripe.

Biology.

Unknown.

Distribution.

This species is found in the central part of Madagascar (Figure 12).