The Chimarra minima group in West Africa and Madagascar (Trichoptera, Philopotamidae)
Gibon, François-Marie
Zoosystema
2015
2015-06-30
37
2
333
350
Gibon, 2015
Gibon
2015
[334,508,215,242]
Insecta
Philopotamidae
Chimarra
Animalia
Trichoptera
11
344
Arthropoda
species
loffae
sp. nov.
( Fig. 6A-E)
TYPE MATERIAL. — Holotype: Guinea, Loffa River, near Macenta, 8°30’2.62”N, 9°27’27.82”W, 524 m.a.s.l., 20.II.1987, J.-F. Agnèse, 1 ♂(2 slides: phallic apparatus / abdominal segments VII-X, head and thorax in alcohol) ( MNHN). Paratypes: Same data, 1 ♂(1 slide), 1 ♂(1 slide: abdomen, head and thorax in alcohol); Guinea, small tributary of the Saint-Paul River, 22 kmNorth/ North-Westfrom Nzérékoré, 7°55’55.18”N, 8°56’32.80”W, 420 m.a.s.l., 30.I.1988, F.-M. Gibon, 1♂(ethanol); Guinea, Makona Riverat Bofossou, 8°39’23.29”N, 9°40’39.55”W, 21.I.1987, F.-M. Gibon, 2 ♂(ethanol), 1 ♂(2 slides: abdomen / head and thorax) ( CBGP).
ADDITIONAL MATERIAL. — Cameroon. Noun River( Sanaga Riverbassin), a few kilometres upstream from Bafia, 4°47’52”N, 11°16’20”E, 440 m.a.s.l., 21.XII.1989, F.-M. Gibon, 1 ♂(1 slide), 1 ♂(2 slides: abdomen / head and thorax), 1 ♂(2 slides: abdomen / head and thorax), 1 ♂(alcohol); Sanagaat Nachtigal Falls, 4°20’50.01”N, 11°38’13.26”E, 20.XII.1988. F.-M. Gibon, 1 ♂(2 slides: wings and genitalia / head and thorax) ( CBGP).
TYPE LOCALITY. — Guinea, Loffa River, near Macenta, 8°30’2.62”N, 9°27’27.82”W, 524 m.a.s.l.
DISTRIBUTION. — Guinea, Cameroon.
ETYMOLOGY. — Named after the Loffa river ( Guineaand Liberia).
DIAGNOSIS. — Chimarra loffae n. sp.belongs to the subgroup 1, with a latero-ventral lobe sheet or leaf-shaped. When viewed dorsally, the latero-dorsal lobe of the tergum X are hook-shaped, with strongly curved hooks. This character is shared with C. prodhoni, C. callasaeand C. cereris. Chimarra prodhonibelongs to the subgroup 2 (lateroventral lobe rod-shaped). Chimarra callasaeis distinguished by the absence of an endothecal spine, an unusually large phallotremal sclerite and a shorter latero-ventral lobe of tergum X. In C. cereris,the hooks are more massive and less curved.
DESCRIPTION Size:forewing 4.0 mm, hindwing 3.2 mm. Preanal appendages short, setose, fin-shaped. Inferior appendages massive in lateral view, dorsal branch strong, with a line of stout setae; internal process protruding, small, ventrally inserted. Latero-dorsal lobes of tergum X short, hook-shaped, strongly curved lateroventrad. Latero-ventral lobes of tergum X lightly sclerotized, rounded, almost as long as the latero-dorsal lobes. Lateral rods of phallotheca, long, stout, strongly curved ventrad along the distal third of their length. Terminal endothecal spine short, curved dorsad, with a wide base. Phallotremal sclerite small, trident-shaped when dorsally viewed.
1987-02-20
MNHN
J. - F. Agnese
Guinea-Bissau
524
8.500728
Loffa River
1
-9.457727
Macenta
11
344
525
1
holotype
1988-01-30
F. - M. Gibon
Guinea-Bissau
Nzerekore
420
7.9319944
Saint-Paul River
1
-8.942445
North-West
11
344
421
1
paratype
1987-01-21
CBGP
F. - M. Gibon
Guinea-Bissau
8.656469
Makona River
1
-9.677653
Bofossou
11
344
3
3
paratype
1989-12-21
F. - M. Gibon
Cameroon
Bafia
440
4.7977777
Noun River
21
11.272222
Sanaga River
11
344
444
4
1988-12-20
CBGP
F. - M. Gibon
Cameroon
4.347225
Sanaga
1
11.637016
Nachtigal Falls
11
344
1
1