Hydroptila cuembica, Wells & De Moor, 2020

Wells, Alice & De Moor, Ferdinand C., 2020, Hydroptilidae (Trichoptera) of Angola, a new genus, seven new species, and five new records, Zootaxa 4868 (4), pp. 495-514 : 498-500

Hydroptila cuembica sp. nov.

( Figs 6, 7 )

Material examined. Holotype male, [CAW 757AZ, slide], ANGOLA, Moxico Province, Cuembo River, Site 6— Cuembo campsite bridge, at light, -13.5265, 19.27971, 01/xi/2016, I.S. Ferreira.

Paratypes, ANGOLA: 7 males, data as for holotype ; 1 male [CAW 891F], Moxico Province, Lungue Bungo River Collecting event 3, downstream of bridge, light trap, -12.57898, 18.67073, 21/iv/2018, H.M. Barber-James & F.C. de Moor ; 3 males [CAW 895X], Moxico Province, Lungue Bungo River Collecting event 5, new campsite along river bank downstream of bridge, light trap, -12.58440, 18.66790, 22/iv/2018, H.M. Barber-James & F.C. de Moor .

Diagnosis. Males are distinguished by the stout apicolateral angles of abdominal segment VIII which envelop segment IX ventrally, the slender mid-dorsal process, and elongate, setate lateral lobes on segment IX. In having the elongate apicomesal process on segment IX, this species shows some resemblance to H. mariatheresae Gibon 1987 , described from Mali, but is otherwise distinct from other species of Hydroptila .

Description. Male. Length of each forewing 2.0 mm (n = 11). Head: antennae damaged, remaining flagellomeres subquadrate in profile, sensilla placodea few, clustered distally. Genitalia: Abdominal segment VIII produced ventrally into stout, apically rounded lateral lobes extending about 2/3 length of inferior appendages; segment IX dorsally short, bearing slender elongate process mid apically, and long slender setate lateral lobes; ventral plate elongate, slender, about length of inferior appendages, sharply tapered to acute apex in ventral view; inferior appendages slender, elongate rod-shaped, each bearing single downturned apical spur; phallus extremely long, narrow, needle-like, without titillator.

Etymology. The name ‘ cuembica ’ refers to the type locality on the Cuembo River.

Distribution. Known from the Cuembo River and two sites on the Lungue Bungo River in Moxico Province of Angola.

Figures

FIGURES 1–9. Hydroptilidae, male genitalia. 1, Catoxyethira kunenica Mey & de Moor, 2019 [CAW 820J], ventral. 2, 3, Hydroptila maoae Gibon, 1994 [CAW 764R]: 2, ventral; 3, left lateral. Figures 4, 5, Hydroptila moxica sp. nov. [CAW 764Z]: 4, ventral; 5, left lateral. 6, 7, Hydroptila cuembica sp. nov. [CAW 757AZ]: 6, ventral; 7, left lateral. 8, 9, Hydroptila brigittae Gibon, 1987 [CAW 855J]: 8, ventral; 9, left lateral. Abbreviations: IX, X—abdominal segment IX and tergite X; ap. lb = apicolateral lobe of segment VIII (paired);.inf. app. = inferior appendage (paired); lt. lb. IX = lateral lobe of segment IX (paired); ph. = phallus; v. pl. = ventral plate.