Trichobothrial pattern neobothriotaxic major Type C, with one accessory trichobothrium
in V series of chela; femur with 3 trichobothria (d, i, e), one macroseta (M1) associated with d and i, e situated slightly proximal to Ml; patella, with 19 trichobothria (2 d, i, 3 et, est, 2 em, 2 esb, 5 eb, 3 V); chela with 27 trichobothria (Dt, Db, 5 Et, Est, Esb, 3 Eb, dt, dst, dsb, db, et, est, esb, eb, ib, it, 5 V), [V.sub.2] displaced externally with respect to the line of V trichobothria; Esb forming a triangle with [Eb.sub.2] and [Eb.sub.3].
4) with proximal half strongly sclerotized, sensory fields circular, with ten trichobothria on basal rosettes, and a marginal trichobothrium
without basal rosette, distal half also sclerotized, bearing a long mesal prong.
Spiracle and trichobothrium
on the 6th abdominal segment.
(0) Absent; Mesovelia furcata and most of the sensillum nepomorphans (1) Present; Curicta granulosa, Borborophyes mayri, Laccotrephes japonensis, and Nepa cinerea K12.
Paraprocts of two pieces, the proximal one joining the clunium, sensory fields with 14 trichobothria on basal rosettes, and one marginal trichobothrium
without basal rosette; distal piece with a small sclerotized prong, distally truncate (Figs.
The protonymphs of both species have short, narrow chelae with three trichobothria on the fixed finger (et, ist, and eb) and one trichobothrium
(t) on the movable finger (Figures 3(e) and 10(a)).
The following abbreviations are used: asl, attenuate solenidion; bsl, blunt ended solenidion; sts, simple tactile setae; T, trichobothrium
The slender trichobothrium
(Tr) arises vertically from a prominent socket; the stronger tactile hair (T) emerges obliquely from a less-developed socket.
The only other character used to distinguish between these two subfamilies is a difference in the position of the trichobothrium
ist, on the prolateral surface of the fixed finger of the pedipalp chelae.
In our specimen has been imposible to determine the position of the second trichobothrium
because the absence of the chaetae and the similarity of the sockets.
(2) The second group includes mechanosensitive sensilla of different shapes (squamiform, trichobothrium
, paddle-like, clubbed-like, ribbon-like, chaetic with bisected tip, fingerlike, freniale-like, peg, cupola, basiconica, star-like, multi-lobated); they are usually characteristic of individual taxa (species, subfamilies, or families).