Revision of the New Caledonian endemic genus Gracilipsodes (Trichoptera: Leptoceridae: Grumichellini) Author Malm, Tobias Author Johanson, Kjell A. text Zoological Journal of the Linnean Society 2008 2008-07-31 153 3 425 452 https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2008.00403.x journal article 10.1111/j.1096-3642.2008.00403.x 0024-4082 5446337 GRACILIPSODES LANCEOLATUS SP. NOV. ( FIGS 7 , 13 ) Diagnosis: This species is separated from the other Gracilipsodes species by having the tibial spur formula 2, 2, 1, and by having only fork 5 present in the hindwings. The genitalia are unique in having a complete tergum X lacking pre-apical lateral processes. Description, male: Body medium brown. Wings greyish brown with blackish hairs. Tibial spur formula 2, 2, 1. Hind tibiae each with 20–26 small blackish spines ( N = 10). Forewing ( Fig. 7A ): length 5.7–6.1 mm ( N = 10); narrow, apically rounded; forks 1 and 5 present; crossvein m–cu nearly as long as crossvein r–m, forms a wide angle with M 3+4 ; crossvein r–m at sharp angle to M. Hindwing ( Fig. 7B ): length 3.9– 4.2 mm ( N = 10); slender, apex nearly acute; fork 5 present; crossvein r–m straight; costa with 22 hamuli. Genitalia: Segment IX annular, laterally setose, widest at mid height; lateral part of tergite IX as wide as sternite IX ( Fig. 7C ); posterior margins of sternum IX and tergum IX produced posteriorly ( Fig. 7C, D ), lateral margins of sternum IX produced anteriad ( Fig. 7E ). Superior appendages setose, flattened dorsoventrally, slightly longer than tergum X ( Fig. 7C ), apices rounded in dorsal view ( Fig. 7D ). Tergum X entire, membranous, tubular; basally and apically wide, apex rounded, dorsal margin straight in lateral view ( Fig. 7C ), narrowing apically, apex with notch in dorsal and ventral views ( Fig. 7D, E ); pre-apical lateral processes absent. Inferior appendages each bipartite, setose; basal part slender at base in lateral view ( Fig. 7C ), mesally concave, produced posteromesally into slender, tapering, and apically rounded lip, bearing small dorsal spines ( Fig. 7C, E ); apical part of each inferior appendage digitate, slender, curving mesally; in lateral view, curving slightly dorsally, widening slowly towards rounded apex, with 25 mesal spines ( Fig. 7C ); mesal process with four spines ( Fig. 7D ). Harpago reduced. Phallic apparatus simple ( Fig. 7F, G ); phallicata basally tubular, fused with phallobase, apex truncate; curving slightly ventrally along its length; apex with pair of pre-apical, sclerotized, ventrally produced broad processes, being directed posterolaterally, and with rounded apices ( Fig. 7F ); phallotremal sclerite U-shaped ( Fig. 7G ). Figure 7. Gracilipsodes lanceolatus sp. nov. A, forewing. B, hindwing. C, genitalia, lateral. D, genitalia, dorsal. E, genitalia, ventral. F, phallus, lateral. G, phallus, ventral. Holotype (male): New Caledonia , Province Sud , western slope of Mt Ningua , Kwé Néco Stream , at Camp Jacob , 3.7 km west-northwest of the summit of Mt Ningua , on Bouloparis-Thio Road , about 50 m upstream of road, 21°43.613′S , 166°06.567′E , 150 m a.s.l. , 29 November–12 December 2003 , Malaise trap , loc#054 (Johanson). Paratypes : Four males, same data as holotype ; one male , ditto, except 12 December 2003 – 5 January 2004 ; 30 males , New Caledonia , Province Sud , western part of Mt Ningua , Kwé Néco Stream , 3.9 km west of summit of Mt Ningua , on Bouloparis-Thio Road , about 50 m upstream of road, 21°44.359′S , 166°06.009′E , 117 m a.s.l. , 20 November 2003 – 12 December 2003 , Malaise trap , loc#035 ( Johanson ) ; one male , New Caledonia , Province Sud , western slope of Mt Ningua , Kwé Néco Stream , at Camp Jacob , 3.9 km west of summit of Mt Ningua , on Bouloparis-Thio Road , about 50 m upstream of road, 21°44.083′S , 166°06.298′E , 117 m a.s.l. , 29 November 2003 – 12 December 2003 , Malaise trap , loc#053 ( Johanson ) . Distribution: Province Sud . Etymology: lanceolatus , from Latin, lancea , spearlike; named after the slender and apically acute hindwings.