Kempnyia ocellata, Froehlich, 2011

Froehlich, Claudio Gilberto, 2011, Notes On Kempnyia, With The Description Of Three New Species (Plecoptera: Perlidae), Illiesia 7 (13), pp. 133-141 : 138-140

Kempnyia ocellata sp. n.

( Figs. 16-21 )

Material examined. Holotype ♂, BRAZIL, Rio de Janeiro, Teresópolis, 30/09/1887. Purchased of Herr Fruhstorfer ( BMNH).

Male. Forewing length 20 mm. General color light brown. Head ( Fig. 16 ) light rusty brown, somewhat darker along a band at level of M-line, a darker stripe between paired ocelli. Antennae light brown basally, then ochraceous. Pronotum light rusty brown, rather uniform, with an inconspicuous lighter mid stripe. Legs light brown. Wing membrane and veins yellowish.

Tergum 10 basiconic sensilla carrot-shaped ( Fig. 18 ), similar to those of K. auberti ; paraprocts ( Fig. 19 ) with a blunt subapical tooth, several long hair sensilla present. Subgenital plate oval, relatively short, hammer pear-shaped ( Fig. 17 ). On penis tube basal to armature, a pair of rather flat spiny patches ( Fig. 21 ). Penial armature long, hooks thin and twisted apically, gonopore tube broad as seen dorsally ( Figs. 20-21 ).

Remarks. The above male bears the label “ ocellata Klap á lek”, likely in Klapalek’s original handwriting. He did not publish the name. The species belong to the group of Kempnyia that have a pair of rather flat spiny patches on the penis tube basally and ventrally from the armature. When the penis is everted, the patches are on the dorsal side. This group includes K. neotropica , K. auberti Froehlich , and K. petersorum Froehlich. Kempnyia neotropica is a dark species smaller than K. ocellata , K. petersorum has a different color pattern (see above) and is smaller, wing length of males 11.1-12.4 mm. Kempnyia auberti is of similar size to K. ocellata , with wing lengths of the two known males 18.4 and 22 mm, respectively, but the head pattern is different, lacking the dark bridge between the paired ocelli, the subgenital plate is shorter, the paraprocts lack a subapical tooth and the gonopore tube is narrower.

Etymology. I have kept Klap á lek’s name, ocellata, probably given in reference to the species’ conspicuous ocelli.

Figures

Figs. 16-21. Kempnyia ocellata, n. sp. 16. Head and pronotum. 17. Outline of male sternum 9. 18. Basiconic sensilla of tergum 10. 19. Apex of male paraproct. 20-21. Penial armature in lateral and dorsal views. Scale bar: Fig. 23, 2.00 mm; Figs. 27-28, 0.21 mm.