Lohmannella stammeri Viets, 1939

Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, Zootaxa 4980 (2), pp. 201-255 : 220

Lohmannella stammeri Viets, 1939

Diagnosis. Corneae absent. Glp-1 same level as Ds-1. Ds-2 on OC. Ds-3 on membranous cuticle. Female with 11 Pgs. Male with 35 Pgs. Tr I–IV with 0-?-0-0 setae; Tf I–IV with (4,5)-5-5-5 setae; Gn I–IV with (5,6)-4-4-4 setae, 3-2-1-1 Bp setae; Tb I–IV with (7,8)-7-5-6 setae, 4-2-2-(2,3) Bp setae; Ta I–IV with 3-3-4-3 dorsal setae, 2-2-(1,2)- 1 Bp setae. Lc I almost smooth, without accessory process. Idiosoma length 297–310 in female, 297 in male. Idiosoma width 206 ( idiosoma length 297) in adult. Gnathosoma length 204–207 in female, 194 in male. Gnathosoma width 100 in adult. Ratio of gnathosoma to idiosoma 0.63–0.67 in female, 0.67 in male. Ratio of P-2 to P-1 4.80.

Remarks. Characteristics of this species are: corneae lacking, Ds-2 on OC, P-2 with 2 setae more distally to the middle part, Tb I with 4 Bp setae, and smooth Lc. This species is simiar to L. curvimandibulata and L. cvetkovi . Female, male, DN, and PN are known. Type specimen is deposited in the Viets Collection (No.5710) in ZIZMH.

Habitat. Inland brackishwater and freshwater: Brackishwater ponds in caves near coast and freshwater stream flowing to mountain lake.

Distribution. Palearctic Realm: La Zinzulusa Cave (Santa Cesarea), Concita Cave [ Italy]. Mlinski Potok stream (Durmitor Mountains) [ Montenegro].

References. Angelier (1951, 1953c), Bartsch (1977b, 1986b, 1996a, 2007b), Pesce (1985), Pešić (2004a), Petrova (1974, 1979, 1984), Viets (1939a, b, 1940, 1950a, 1950b, 1956), Viets, K.O. (1967).

Depository. ZIZMH.