Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae) Author Wells, A. Australian Biological Resources Study, PO Box 787, Canberra, ACT 2601 Australia. E-mail: alice. wells @ environment. gov. au Entomology Department, Swedish Museum of Natural History, Box 50007, SE- 104 05 Stockholm, Sweden. Author Johanson, K. A. text Zootaxa 2012 2012-09-11 3478 330 344 journal article 1175-5326 7F7A7C35-7E0F-4264-A053-BF06095F3F08 Paroxyethira hamata , new species Figs 21, 22 Closely resembling P. dzumac , new species , but distinguished by the stout, straplike subapical process on the phallic sheath and its pair of setae at almost equi-distance from base, in contrast to more slender apical process of P. dzumac with widely separated pair of setae. Also, the left gonopod of P . hamata is stouter and bears a lateral brush of black setae. Male antennae each with 18 flagellomeres. Forewing length. Male 2.0 mm (n=2). Male genitalia ( Figs 21, 22 ). Median process on abdominal sternite VIII elongate spatulate; length about 5x width at middle. Abdominal segment IX dorsally with distal margin widely and deeply concave, forming lateral lobes that in ventral view are slender, elongate. Gonopods dissimilar; right gonopod stout, tapered distally to blunt apex; brush of equally long, stout black setae extending along mesal margin; closely joined at base to shorter, more slender left gonopod with brush of setae distolaterally. Phallic apparatus slender, straight, elongate; constricted at about 1/6 length at which constriction short, threadlike titillator arising. Phallic sheath elongate, with tapered, curved straplike process subapically and pair of large setae at about 2/3rds its length. Female unknown. Holotype male: Province Sud , Mt. Dzumac , source stream of Ouinne River , downstream crosspoint to mountain track, 22°01.997'S , 166°28.486'E , 795 m , over about 30 m waterfall, 18.xi–4.xii.2003 , Malaise trap , loc#031, leg. K.A. Johanson ( MNHP ). Paratype : Same data as for holotype— 1 male ( SMNH ) . Etymology: Hamata , from Latin hamatus , meaning hooked, referring to the phallic sheath spine. Remarks: These curious specimens were collected with P. dzumac , and have male genitalia of the same general form, yet significantly different and thus are tentatively assigned to a separate species.