S. Mahunka szerk.: Folia Entomologica Hungarica 31/1. (Budapest, 1978)

Material examined: Holotypus: No. 3788: Ecuador; 10 paratypes: from the same locality; 1 paratype: No. 3791: Ecuador. Holotype and 2 paratypes: USNM; 7 paratypes (215-PA77): HNHM; 1 paratype: CR; 1 paratype: MHNG. Remarks: Solenidion | 2 of leg II so different from that of other congeners that the species may readuly by separated from them. Pteranoetus rettenmeyeri sp. n. Measurements. - Length: 158-177 ja, breadth: 118- 132 ja. Habitus: Body ovoid in outline, in front apicate, behind rounded. Surface very finely punctate. Dorsal side (Fig. 134): Sides of propodosoma throughout convexly arching. No peritrema apparent on it. Inner pair of hairs emitted far in front of outer one, set very close to each other. Frontal margin of notogaster in the middle strongly convex. Dorsosejugal region broad with aciculate sculpture. Wing-like process of notogaster rounded in front. Notogastral hairs, excepting spiniform hj, minute similarly to hairs of propodosoma. Ventral side (Fig. 135): Gnathosoma (Fig. 138) very small, infracapitulum narrow, oblong in outline, palpi scarcely distinguishable, solenidia very short, ap. sej. weakly developed, transversal parts narrowing, hardly distinguishable. Apodeme 3, ap. sec. well discernible. Epimeres 1 and 4 with well-developed sucking discs, epimere 3 with a tiny hair. Adhering plate normally developed. Legs: Legs I and II (Fig. 136-137) both with large adhering hairs. Hairs 1* and 1' ' on leg I emitted near proximal end. Solenidion 1 shorter than V 2» while £ quite small. Solenidion W ^ of leg II thick and long, V \ much shorter and thin. End-hairs of legs III and IV (Fig. 139-140) phylliform. Material examined: Holotypus: No. 3785: Ecuador; 6 ex. paratypes: from the same locality; 3 ex. paratypes: No. 3786: Ecuador; 2 ex. paratypes: No. 3789: Ecuador. Holotype and 2 paratypes: USNM; 7 paratypes (216-PA-77): HNHM; 1 paratype: CR; 1 paratype: MHNG. Remarks: So far only the type-species was known from this recently erected genus: Pteranoetus Mahunka, 1977. The new species significantly differs from the type-species by the chaetotaxy of the legs and the shape of the apodemes. REFERENCES 1. MAHUNKA, S. (1977): The Examination of Myrmecophilous Tarsonemid Mites based on the Investigations of Dr. C.W. Rettenmeyer (Acari), I. - Acta Zool. Hung., 23/1-2: 99-132. 2. MAHUNKA, S. (1977): The Examination of Myrmecophilous Tarsonemid Mites based on the Investigations of Dr. C.W. Rettenmeyer (Acari). II. - Acta Zool. Hung., 23/

3-4: 341-370. 3. RETTENMEYER, C.W. (1961): Behavior, abundance and host specificity of mites found on neotropical army ants (Acarina: Formicidae: Dorylinae). XI. - Internat. Kongr. f. Entom., Wien, 1960. Sonderdr. aus den Verh.

, 1: 610-612. Author's address: Dr. S. MAHUNKA Zoological Department Hungarian Natural History Museum H-1088 Budapest Baross u. 13. Hungary