Chimarra jejyorum, 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 : 17

Chimarra jejyorum sp. nov.

urn:lsid:zoobank.org:act:714C3E34-8FCB-451E-8A19-10F61A1DF016

Figs 1 , 9 , 18

Diagnosis

Chimarra jejyorum sp. nov. is closely related to C. gattolliati sp. nov. The two species can be distinguished by the shape of the inferior appendages, as discussed in the diagnosis of C. gattolliati sp. nov. or, due to the size of the phallic apparatus, by the phallotheca, split shortly after the base in C. jejyorum sp. nov. ( Fig. 9D ), after mid-length in C. gattolliati sp. nov. ( Fig. 7D ).

Etymology

From the Malagasy ‘jejy’ (a traditional musical instrument). It is a reference to the name of the Mountain Marojejy, in translation: where there are many guitars.

Type material

Holotype

MADAGASCAR: ♂, mounted on 3 slides, remaining parts in alcohol, camp II of the WWF expedition to the Marojejy National Park , 14°26′10″ S, 49°45′37″ E, 750 m, 14 Oct. 1996, leg. D. Randriamasimanana and J. Legrand.

Paratypes

MADAGASCAR: 7 ♂♂, in alcohol, same data as holotpye; 1 ♂, camp I of the WWF expedition to the Marojejy National Park, 14°26′02″ S, 49°46′20″ E, 450 m, 13 Oct. 1996, leg. D. Randriamasimanana and J. Legrand.

Other specimens

MADAGASCAR: 1 ♂, mounted on 2 slides, remaining parts in alcohol, Andranomifitatra River, camp III of the WWF expedition to the Marojejy National Park, 14°26′02″ S, 49°44′05″ E, 1225 m, 25 Oct. 1996, leg. D. Randriamasimanana and J. Legrand.

Description

SIZE. Forewing 7.3 mm, hind wing 5.8 mm.

TERGUM X. Ventral branch of lateral lobe short, dorsal branch thumb-shaped, slightly curved ventrad (lateral view), apex contorted with two sensillae ( Fig. 9B ).

INFERIOR APPENDAGES. Ventral branch reduced, dorsal apex with small denticles.

PHALLIC APPARATUS. Phallotheca split according to a sagittal plane, right lamina large with a big dorsolateral bump, left lamina nearly as long but thinner (dorsal view); internal sclerite sickle-shaped (lateral view); phallotremal sclerite present, sclerotized but indistinctly shaped.

Distribution

Madagascar (endemic), Marojejy National Park.

Figures

Fig. 1. Chimarra jejyorum sp. nov., right wings. Scale bar = 2 mm.

Fig. 9. Chimarra jejyorum sp. nov. A–B. Abdominal segments IX and X. A. Lateral view with ventral margin of sternite VIII. B. Dorsal view. 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.

Fig. 7. Chimarra gattolliati sp. nov. A–B. Abdominal segments IX and X. A. Lateral view. B. Dorsal view (partim). C. Inferior appendage, dorsal view. D–E. Phallic apparatus. D. Dorsal view. E. Lateral view. Scale bar = 0.5 mm.