Bioacoustics of Hoplopholcus suluin

Description . Male ( holotype ). MEASUREMENTS. Total length 6.9, carapace width 2.4. Distance PME-PME 190 µm ; diameter PME 150 µm ; distance PME-ALE 50 µm ; diameter AME 80 µm ; distance AME-AME 40 µm . Leg 1: 57.8 (16.3 + 1.2 + 15.7 + 21.7 + 2.9), tibia 2: 10.7, tibia 3: 8.1, tibia 4: 9.2; tibia 1 L/d: 60. COLOR (in ethanol). Carapace ochre-yellow to light brown, with darker brown pattern medially including ocular area; sternum dark brown to black; legs ochre-yellow to light brown, with darker rings subdistally on femora and tibiae and in patella area; abdomen pale gray, with dark marks dorsally in posterior half; ventrally with large brown mark in front of gonopore, smaller black marks at spinnerets and between gonopore and spinnerets. BODY. Habitus as in Fig. 8 . Ocular area slightly elevated. Deep thoracic pit and pair of furrows diverging from pit toward posterior margin. Clypeus unmodified. Sternum wider than long (1.8/1.2), unmodified. Abdomen oval, dorso-posteriorly rounded. CHELICERAE. As in Figs 84–85 , with pair of latero-distal apophyses provided with three modified coneshaped hairs each (illustrated chelicerae are not from holotype ); stridulatory ridges fine but clearly visible in dissecting microscope. PALPS. As in Figs 76–78 ; coxa with low retrolateral bulge, trochanter barely protruding ventrally, femur retrolateral line barely visible, distinct prolateral stridulatory pick; procursus ( Figs 82–83 ) with indistinct ventral ‘knee’, with distinct prolateral hump, ventral spine very short, prolateral process with obtuse tip; genital bulb ( Figs 86–89 ) with putative ‘ventral sclerite’ almost entirely reduced and moved to prolateral position, embolar sclerite large, with hair-like processes (arrow in Fig. 89 ). LEGS. Femur 1 with single row of ~35 ventral spines, femur 2 with only 2–3 spines; femur 1 spines alternating more or less regularly between short and long spines (~ 80–160 µm versus ~ 280–350 µm long); with few weakly curved hairs on tibiae and metatarsi 1 and 2; few vertical hairs; retrolateral trichobothrium of tibia 1 at 4%; prolateral trichobothrium absent on tibia 1, present on all other leg tibiae; tarsi without distinct pseudosegments but with many small platelets. Male (variation). Tibia 1 in two other males: 11.9, 14.8. Modified hairs on cheliceral apophyses in other males 2+2 and 3+3, respectively. Smallest males with much fewer spines on femur 1 (~18). Female. In general similar to male ( Fig. 9 ) but without spines on legs; females also with few barely curved hairs. Tibia 1 in three females: 10.7, 13.2, 13.7. FEMALE GENITALIA. Epigynum as in Fig. 79 , internal sclerotized arcs visible in uncleared specimens; with pair of weakly bulging areas in front of epigynum; posterior plate short but wide. Internal genitalia with large oval pore plates converging anteriorly ( Figs 81 , 91 ), uterus externus with large median pouch rounded anteriorly, with parallel lateral margins, and pair of smaller lateral pouches with sclerotized posterior margins ( Figs 80 , 90 ).