Occigamasus sp. 3

Juvara-Balş, Ilinca, 2019, Occigamasus, a new genus of pergamasine mites, with description of two new species from the west coast of North America (Parasitiformes: Gamasina: Parasitidae), Acarologia 59 (4), pp. 551-570 : 566-567

Occigamasus sp. 3

Material examined — Canada, Alberta: 1 female, 1 male, Waterton Lakes National Park, edge

of Rowe Lake, from litter, alpine exposure, 2500 m alt., 2–5 Sept. 1980; 1 female, rocky slopes,

damp moss; 1 female, 1 male, from grass and substrate, subalpine, by Lake Rowe , 1950 m alt .

Morphological characteristics — Female ( Fig. 7F ): endogynium a sack with medial spine, lateral protuberances and four anterolateral denticles on the upper margin; epigynium with spindle-like structure; gv1 located medially on posterior margin of sternal shield. Trochanter

IV, dorso-laterally, with triangular protuberance. Male: armature on leg II with a small rounded protuberance on genu and trapezoidal spur on tibia. Measurements. Female: tarsus I = 240, tarsus IV = 360; seta pd2 = 216. Male: tarsus I = 228, tarsus IV = 288; seta pd2 = 192.

Figures

Figure 7 Occigamasusspp., female endogynia: A –Occigamasussp. 1; C – Occigamasus makarovaen. sp.; E – Occigamasussp. 2; F – Occigamasussp. 3; G – Occigamasussp. 4; I, J – Occigamasussp. 5. Subapical structure of epigynium: B –Occigamasussp. 1; D – O. makarovaen. sp.; H – Occigamasussp. 4; K – Occigamasussp. 5.