Chimarra vulgaris, Gibon, 2015

Gibon, François-Marie, 2015, The Chimarra minima group in West Africa and Madagascar (Trichoptera, Philopotamidae), Zoosystema 37 (2), pp. 333-350 : 344-345

Chimarra vulgaris n. sp.

( Fig. 8 A-D)

TYPE MATERIAL. — Holotype: Madagascar, Marokoto River near Mananara (Mandrare River basin), 46°38’50”E, 24°44’02”S, 275 m. a.s.l., 03.VI.1994, F.-M. Gibon, 1 ♂ ( MNHN).

Paratypes: Same data, 10 ♂ ( CBGP). – Ankazomanga, tributary of the Sohitay (Mandrare River basin), 46°37’23”E, 24°02’37”S, 430 m. a.s.l., 26.IV.1995, 1 ♂ (4 slides: wings / phallic apparatus and inferior appendages / abdominal segments I-VI / abdominal segments VII-X, head and thorax) ( CBGP).

TYPE LOCALITY. — Madagascar, Marokoto River near Mananara 46°38’50”E, 24°44’02”S, 275 m. a.s.l.

DISTRIBUTION. — Madagascar.

ETYMOLOGY. — Named after the Latin word vulgaris = common. DIAGNOSIS. — Chimarra vulgaris n. sp. is a close relative of C. antsymeloka n. sp. The two lateral rods of the phallotheca are smaller than in the continental species; they are thick with a wrinkled appearance in C. antsymeloka n. sp., thinner and spine-shaped in C. vulgaris n. sp. The latero-dorsal lobes of the tergum X are similar, with an acute extremity in C. antsymeloka n. sp., a truncate one in C. vulgaris n. sp.

DESCRIPTION

Size: forewing 4.8 mm, hindwing 3.9 mm. Preanal appendages small, setose, wineskin-shaped. Inferior appendages almost quadrangular in lateral view; dorsal branch strong, wide, with an acute apex, when dorsally viewed, as long as the width of the appendage; internal process fold-shaped,

inserted just below the dorsal branch. Latero-dorsal lobe of tergum X strong, curved outward, with truncate apex; boomerang-shaped when viewed dorsally. Latero-ventral lobe of tergum X sheet like, long, wide with rounded extremity. Lateral rods of phallotheca short, slightly curved ventrad. Endothecal spine present small, straight. Phallotremal sclerite large; trident-shaped when viewed dorsally, with two symmetric latero-dorsal branches and one, slightly shorter centro-ventral branch.

Figures

FIG. 8. — A-D, Chimarra vulgaris n. sp.; A, B, segments IX and X, dorsal view (A), lateral view (B); C, inferior appendage, dorsal view; D, phallic apparatus, lateral view. Scale bar: 0.1 mm.