Plectrocnemia dalat Oláh & Johanson 2010, new species
Creators: name: Oláh, János
name: Johanson, Kjell Arne
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Polycentropodidae
Plectrocnemia
Plectrocnemia dalat

description: Plectrocnemia dalat, new species   
Figures 14–17  
 Diagnosis: This species is most similar to Plectrocnemia thai, new species, from Vietnam. Plecrocnemia dalat, new species, is distinguished from that species by the shape of the gonopods being produced dorsad; by the simple ventral paraproctal processes; and in lateral view by the hook-shaped dorsal paraproctal processes.   
 Description: Male. Body uniformly brown. Maxillary palp formula (I,II)-IV-III-V, 3rd segment of each maxillary palp inserted subapically on subapicolateral surface of 2 nd segment. Forewings brown, with length 5.3 mm. Discoidal cell closed in both forewings and hind wings; forewings each with median cell closed. Forewings each with apical forks 1, 2, 3, 4, and 5; hind wings each with apical forks 1, 2, and 5.   
Male genitalia. Sternite IX subtriangular, elongated ventrally by produced anteroventral corner; dorsoapical corner on posterolateral margin produced, giving small 4th angle to triangle; longer dorsal part connecting sternite to fulcrum formed by sclerotized cerci and large-based paraproctal complex, and meeting points of membranous, vestigial tergite IX and segment X; tergite IX with small membranous flank almost indiscernible, located anterad of fulcrum. Segment X membranous, forming roof above cercus and dorsal paraproctal processes in lateral view (Fig. 14). Setose cerci originating from fulcrum; each large, elongate, parallel-sided, foliaceous, with anterodorsal margin slightly sinuate at midlength. Paraproctal complexes large, each fused to basomesal region of its cercus, forming large body at fulcrum (Fig. 14); turning dorsolaterad into ventral paraproctal processes; heavily sclerotized paraproctal complex produced dorsomesad; dorsal paraproctal processes each forming horizontal plate (Fig. 15) and vertical rounded plate with upturning hook-like spine visible in lateral view, guiding phallic apparatus; apex of ventral and dorsal paraproctal processes turning dorsad, hook-shaped. Gonopods short, triangular, each with elongate dorsodistal angle in lateral view; basal dorsomesal lobe present in middle position, forming inner, elongate, slender process with mesad-directed apex (Figs. 14, 16); anterior margin produced into mesal ridge with stout, long macrosetae decreasing in size ventrally. Phallic apparatus (Fig. 17) broad, horizontal; large sclerotized phallotheca having short phallobase with wide anteroventral foramen; border between phallicata and endophallus distinct; pair of dorsally located, thick parameres with bases embedded in endophallic membranes and with apices free; apical 1/3rd of parameres notched dorsally starting from distinctive, pigmented ring; elongate, weakly pigmented, indistinct phallotremal sclerite present centrally in endotheca, and pair of spines at border of phallicata and aedeagus.  
 Holotype male: VIETNAM: Lamdong, Dalat, Monastery Balcony, 16.x.1988, light [J. Oláh]—(OPC).   
 Paratype: same data as holotype— 1 male (OPC).   
 Distribution: Vietnam.   
 Etymology: Dalat, named after the type locality.
description: Published as part of 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, pp. 1-63 in Zootaxa 2435 (1) on page 16, DOI: 10.11646/zootaxa.2435.1.1, http://zenodo.org/record/5315673