The Plecoptera of Panama. II. Two new species, one new country record, and additional locality records of Anacroneuria (Perlidae) from western Panama Author Stark, Bill P. Author Armitage, Brian J. text Zootaxa 2018 2018-08-15 4459 2 315 326 journal article 29020 10.11646/zootaxa.4459.2.6 b67114df-ddee-49d9-a264-a3c20bded320 1175-5326 1458661 EEE710C1-D8B5-4FFB-87F8-C5D9086C1BA5 Anacroneuria ngabe sp. n. ( Figs. 6–10 , 12 ) http://lsid.speciesfile.org/urn:lsid: Plecoptera .speciesfile.org:TaxonName:503256 urn:lsid:zoobank.org:act:7D889D39-6654-4C3D-89A7-14F52746853B Material examined. Holotype ♂ , 4 ♀ paratypes from Panama , Chiriqui Province , Cuenca 93 ( Río Guabo ), afluente Río Guabo , NNE Fortuna Dam nr. Fortuna Cabins , 8.77806°N , 82.19359°W , 1128 m , UV light, 18 February 2018 , B. and T. Armitage ( Holotype ♂ COZEM ; paratype ♀ COZEM , BPSC ) . FIGURES 6–10. Anacroneuria ngabe male, afluente Río Guabo, Chiriqui Province, Panama. 6. Head and pronotum. 7. Male sternum 8 with hammer. 8. Aedeagus, ventral. 9. Aedeagus, lateral. 10. Aedeagus, dorsal. Adult habitus. General body color yellow with brown patches. Head yellow except for dark brown lappets and antennae; ocellar area with obscure darker yellow brown pigment spot. Median half of pronotal disc yellow, lateral areas brown ( Fig. 6 ). Wings brown, veins darker except pale costa. Femora mostly yellow but with a small, dark brown distal area; tibiae banded, dark brown distally and proximally, and with a yellow median band. Male. Forewing length 11 mm . Hammer absent, or at most a low membranous disc ( Fig. 7 ). Aedeagal apex simple but lateral margins curved outward near tip, and apex with a small notch; ventral keel conspicuous, consisting of a pair of long, curved ridges that form an X-pattern beyond the hooks; a pair of prominent membranous lobes present subapically. Hooks very slender ( Figs. 8–10 ). Female. Forewing length 12–13 mm . Subgenital pate bilobed, lobes separated by a V-shaped notch ( Fig. 12 ). Larva. Unknown. Etymology. The species name is proposed in honor of the Ngäbe people of Chiriqui province and adjacent areas of Panama . Diagnosis. The general body color is yellow patterned with dark brown and the median yellow pronotal band is relatively wide and the dark area near the ocelli is obscure. This general head/pronotal color pattern is shared by at least nine other Anacroneuria species known to occur in Panama and Costa Rica , therefore the color pattern is not considered distinctive. Males of this species will key to A. varilla Stark, 1998 and the aedeagal apices of the two are somewhat similar, but in A. varilla the aedeagal apex is truncate and has parallel lateral margins and the dorsal keel of A. varilla is obscure. Female subgenital plates of the two species are also quite similar.