Anacroneuria kayceae Kondratieff & Gill, 2012

Stark, Bill P., Kondratieff, Boris C. & Gill, Brian, 2012, New Species And Records Of Anacroneuria (Plecoptera: Perlidae) From Ecuador And Paraguay, Illiesia 8 (6), pp. 78-93 : 85

Anacroneuria kayceae Kondratieff & Gill sp. n.

( Figs. 14-18 )

Material examined. Holotype ♂, Ecuador, Napo, 6.38 km W Baeza, Hwy E-20, 1,987 m, 0° 27.123’S, 77° 56.468’W, 25 January 2012, B.C. Kondratieff, B. Gill ( USNM).

Adult habitus. General color pale yellow, white in alcohol. Head with slightly darker, but obscure markings over ocelli, lappets and posterolateral areas of occiput ( Fig. 14 ). Pronotum pale along lateral margins and median suture, but with irregular, dark brown, sublateral bands. Ocelli narrowly separated; wings transparent, veins pale. Legs, antennae and palpi pale.

Male. Forewing length 17 mm. Hammer almost cylindrical, but slightly wider at base than apex ( Fig. 15 ). Aedeagal apex truncate, lateral margins slightly expanded and appearing swollen at base ( Figs. 16, 18 ); hooks strongly sclerotized at base with a distinct dark line outlining inner basal margin, and bearing a strong ventral keel from near midlength to near tips. Dorsal keel consists of two close-set, low ridges, extending for about half of apical area length ( Fig. 18 ). In lateral aspect much of aedeagal apex membranous ( Fig. 17 ).

Female. Unknown.

Larva. Unknown.

Etymology. We honor Dr. Kayce Anderson, Colorado State University, for her dedication to ecological studies in Ecuador, and her appreciation of Neotropical aquatic biology.

Diagnosis. The aedeagus of this species is similar to that of the Peruvian-Bolivian species, A. pachacuti Stark & Sivec 1998 , particularly in lateral aspect. However, in that species the apical section of the aedeagus is offset by prominent basolateral notches and the aedeagal apex is nipple-shaped rather than truncate (see Stark & Sivec 1998, Figs. 124-126). In addition, A. pachacuti is a smaller species (FWL ~ 11 mm) with a slightly darker habitus. The aedeagus is also similar to that of A. rawlinsi Stark, 2001 , but in that species the apical aedeagal section lacks swollen basolateral lobes.

Comments. The type locality ( Figs. 32-33 ) is described under A. guambiana .

Figures

Figs. 14-18. Anacroneuria kayceae male structures. 14. Head and pronotum. 15. Abdominal sternum 9. 16. Aedeagus, ventral. 17. Aedeagus, lateral. 18. Aedeagus, dorsal.

Figs. 32-35. Ecuadorian collecting sites. 32. Napo Province, 6.38 km W Baeza, 1,987 m. 33. Same site as previous figure. 34. Napo Province, 8.68 km W Baeza, 2,134 m. 35. Napo Province, 2.78 km W Papallacta, 3,296 m.