A new species of Tricorythopsis Traver, 1958 (Leptohyphidae) and occurrence of Pannota (Insecta: Ephemeroptera) species in Amapá state, Brazil Author Belmont, Enide Luciana L. Author Cruz, Paulo Vilela Author Hamada, Neusa text Zootaxa 2015 4007 1 104 112 journal article 10.11646/zootaxa.4007.1.7 217802f6-1874-4069-b4bd-17a5cdd0ff0b 1175-5326 233180 AA8F1F18-89B7-4E7E-B746-5F981FE94BF8 Macunahyphes pemonensis Molineri, Grillet, Nieto, Dominguez & Guerrero, 2011 ( Figs. 1–6 ) Known stages. I ♂♀ ( Molineri et al. 2011 ). New records. Brazil , Amapá (Pedra Branca and Amapá municipalities). Material examined. PT3 ( 9I ), PT 11 ( 3I ). Diagnosis. Adapted from Molineri et al. (2011) : eyes similar in both sexes, undivided; 2) forewings with welldeveloped CU-A lobe, especially in males ( Fig. 3 ); 3) longitudinal vein CuP absent in both sexes ( Fig. 3 ); 4) hind wings absent in both sexes; 5) membranous filaments of mesoscutellum absent; 6) styliger plate slightly projected posteriorly as a columnar base; 7) forceps 3-segmented, second segment with a basal swelling ( Fig. 5 ); 8) penis heavily sclerotized, wide basally and narrowing distally, with a smooth (without spines) ventral projection ( Figs. 4–6 ) Discussion. The species M. pemonensis was included in Macunahyphes by the presence of a ventral projection on the penis, longitudinal vein CuP absent and styliger plate projected posteriorly as a columnar base ( Molineri et al. 2011 ). The only important feature missing in its description ( Molineri et al. 2011 ) was the shape of its forceps, since all of the specimens examined by the above-cited authors had lost this structure. In this study we were able to collect two specimens with forceps, which possess a basal swelling in the second segment. The presence of a basal swelling in the forceps does not corroborate the placement of this species in Macunahyphes ; on the other hand, the presence of a ventral projection on the penis and longitudinal vein CuP absent does corroborate this placement in Macunahyphes . Ascertaining the generic allocation of this species will remain difficult until nymph of this species is described and a comprehensive cladistic study is performed. Distribution. VENEZUELA : Bolívar ( Molineri et al. 2011 ).