Chimarra makiorum, Ird & Inra, 2017

Gibon, François-Marie, 2017, The Chimarra lehibemavo species-group, new and endemic to Madagascar (Trichoptera, Philopotamidae), European Journal of Taxonomy 319, pp. 1-31 : 20-22

Chimarra makiorum sp. nov.

urn:lsid:zoobank.org:act:0874DFCB-4167-488F-8CD8-8F668E4EAE0F

Figs 11 , 18

Diagnosis

Chimarra makiorum sp. nov. differs from C. hamatra sp. nov. by the apical insertion of the median branch of the inferior appendage (at mid-height in C. makiorum sp. nov.).

Etymology

The name is designed from that of the river where the type was collected (Rivière des makis). It is used according to the Latin rules.

Type material

Holotype

MADAGASCAR: ♂, mounted on 3 slides, Montagne d’Ambre , camp I of the WWF expedition to the Park, Makis River, 12°31′40″ S, 49°10′09″ E, 1075 m, 31 Mar. 1995, leg. J.-M. Elouard.

Paratypes

MADAGASCAR: 1 ♂, Montagne d’Ambre, Makis River, 12°29′17″ S, 49°10′14″ E, 675 m, 2 Apr. 1994, leg. J.-M. Elouard; 2 ♂♂, Montagne d’Ambre, Makis River, 12°31′38″ S, 49°10′21″ E, 1050 m, leg. J.-M. Elouard.

Description

SIZE. Forewing 7.0 mm, hind wing 5.5 mm.

TERGUM X. Lateral lobe with reduced ventral branch and short dorsal branch; dorsal branch straight (lateral and dorsal view), with a lateral bump bearing two sensillae.

INFERIOR APPENDAGES. Wide, roughly rectangular in lateral view; ventral branch weakly developed; median branch protruding, inserted near the apex of distal edge (lateral view), making the apex clawshaped on dorsal view ( Fig. 11C ).

PHALLIC APPARATUS. Long, distal half of the phallotheca poorly sclerotized with the exception of the dorsal part, whose left edge is laterally extended; internal sclerite long, with a basal triangular extension and curved apex; phallotremal sclerite relatively long (as long as half of the phallotheca).

Distribution

Madagascar (endemic), Montagne d’Ambre.

Figures

Fig. 11. Chimarra makiorum sp. nov. A–B. Abdominal segments IX and X. A. Lateral view with ventral margin of sternite VIII. B. Dorsal view (partim). C. Inferior appendage, dorsal view. D–E. Phallic apparatus. D. Dorsal view. E. Lateral view. Scale bar = 0.5 mm.

Fig. 18. Chimarra makiorum sp. nov., Chimarra gensonae sp. nov. and Chimarra jejyorum sp. nov., schematic distribution map and ecological profile of the capture sites in Madagascar.