Bioacoustics of Calapnita dinagat

Description. Male ( holotype ) MEASUREMENTS. Total body length 5.5, carapace width 0.75. Leg 1: 31.5 (8.0 + 0.3 + 7.1 + 13.6 + 2.5), tibia 2: 5.5, tibia 3: 3.4, tibia 4: 6.1; tibia 1 L/d: 118. Distance PME-PME 200 µm, diameter PME 90 µm, distance PME- ALE ~30 µm; no trace of AME. COLOR. Entire animal mostly pale gray to whitish, sternum darker, legs slightly yellowish with brown patellae and tibia-metatarsus joints. BODY. Habitus as in Fig. 131 ; ocular area barely elevated, each triad on very low hump; carapace without median furrow; clypeus unmodified; sternum as wide as long (0.48), unmodified. CHELICERAE. As in Figs 241–242 , with pair of bipartite apophyses near lamellae, pair of lateral processes; without modified hairs; without stridulatory ridges. PALPS. In general similar to C. vermiformis (cf. figs 139 and 140 in Huber 2011 ) but much smaller; trochanter apophysis as in Fig. 239 ; femur as in Fig. 240 , distal process at 24% of femur length; tibia length/diameter 0.43/ 0.27; procursus as in Figs 236–238 , with conical semitransparent prolateral process, with flat bifid ventro-distal sclerite; bulb length 0.29; embolus length 0.35. LEGS. Without spines and curved hairs; few vertical hairs; retrolateral trichobothrium on tibia 1 at 2%; prolateral trichobothrium absent on tibia 1, present on other tibiae; tarsus 1 pseudosegments not seen in dissecting microscope. Male (variation). Tibiae 1 missing in other males. Female . In general similar to male but sternum whitish; eye triads slightly closer together (distance PME-PME 190 µm). Tibia 1 in 4 females : 5.2, 5.2, 5.6, 5.7. Epigynum as in Fig. 243 , weakly sclerotized with wide anterior ‘knob’; internal genitalia as in Fig. 244 , with oval pore plates far apart. Natural history . One male had an ectoparasitic mite on its prosoma ( Fig. 131 ; cf. C. bankirai above). Such mites are not rare in spiders (e.g., Welbourn & Young 1988 ) but have rarely been reported for Pholcidae .