Pahamunaya espelandae, Oláh & Johanson, 2010

Oláh, János & Johanson, Kjell Arne, 2010, Generic review of Polycentropodidae with description of 32 new species and 19 new species records from the Oriental, Australian and Afrotropical Biogeographical Regions 2435, Zootaxa 2435 (1), pp. 1-63 : 56-57

Pahamunaya espelandae , new species

Figures 103–105

Diagnosis: This species is morphologically similar to P. nacesiveci Malicky from Sarawak due to the shape of sternite IX forming a characteristic posterior sternal tube. In P. espelandae the dorsal paraproctal processes form double-lamellated, long plates sourrounding and enclosing the phallic apparatus in a tight sheath, not simple and spine-like processes as in P. nacesiveci ; the ventral paraproctal processes are small and spine-like, not large; the cerci are elongated, not broad; and the gonopods each lack a dorsoapical mesal bilobed process that is present in P. nacesiveci .

Description: Male. Body pale brown with lighter antennae and head. Maxillary palp formula (I,II)-IV-III- V. Forewings length 3.0 mm.

Male genitalia. Segment IX forming well-developed, quadrate sternite divided somewhat into basal and apical halves as indicated by constriction at 2/3rds length ( Fig. 103 ); dorsum of posterior part on each side turning mesad and fusing into short tube housing basal part of each gonopod; anterodorsally fused to cercalparaproctal complex. Segment X well-developed, weakly sclerotized, monolobed, forming ligula, as long as dorsal paraproctal plate; narrowing apex shallowly bifid; dorsoapical part with setae. Cerci elongate, foliaceous; setose, except on short, spine-like ventral process. Basal paraproctal plate on each side fused with cercus; produced into dorsal paraproctal process, broadening distally into rounded apex; smaller plate discernible mesad of apical part of dorsal paraproctal plate, these paraproctal plates sourrounding phallic apparatus; ventral paraproctal process forming small, slightly upcurving spine fused to basal plate and cerci. Gonopods ( Fig. 103, 104 ) each originating from tube on sternite IX; forming horizontal, rod-like structure bending dorsad at mid-length before broadening into large, compressed vertically oriented plate; curving slightly mesad from mid-length ( Fig. 104 ). Phallic apparatus ( Fig. 105 ) simple, tube-like, with broad phallobase and arching phallicata; weakly pigmented, horizontally elongated, small sclerite visible on membranes retracted in phallotheca.

Holotype male: BRUNEI: Belait district, small stream crossing road 8.5 km N Kg . Teraja, 50 m upstream bridge, 4 ° 20 ’ 55.3 ’’ N, 114 ° 26 ’ 46 ’’ E, 33 m, 6–12.iv.2006, Malaise trap, loc#02 [M. Espeland]— ( NHMS).

Paratype: BRUNEI: Belait district, 1.5 km on path to Bukit Teraja , small stream, 5 km N of Kg. Teraja, 4 ° 19 ’ 15 ’’ N, 114 ° 26 ’ 24 ’’ E, 285 m, 9–12.iv.2006, Malaise trap, loc#03 [M. Espeland]— 1 male ( OPC) .

Distribution: Brunei.

Etymology: Espelandae, named after Marianne Espeland, the collector of the species.

Figures

FIGURES 103–105. Pahamunaya espelandae, new species, holotype. 103—genitalia, left lateral; 104—left gonopod, ventral; 105—phallic apparatus, left lateral.