22 
Annals of the Transvaal Museum 
a 2 . Tarsus of second and third legs with 1-2 segments, of fourth 
leg with 1-4 segments. Stridulatory ridges of chelicerae long and 
well developed. Flagellum of male when present is membranous 
and expanded, at least in its basal portion, the edges incurved to 
form an open capsule: at the base where it is attached to the mesial 
surface of the jaw, there is a ball and socket joint by which it can 
be movably articulated in a vertical plane around its point of 
attachment. Anterior border of head-plate not quite straight but 
more or less curved. S. /. Daesiinae. 
Subfamily DAESIINAE. 
3. Second and third legs with two tarsal segments, fourth leg with four 
tarsal segments, the basal one of which is subequal to the other three in length, 
the one next to it being shortest, and the most distal segment longer than 
the penultimate or the antepenultimate. Tibia of second leg with five dorsal 
spines, of third leg with three dorsal spines. Tarsus of palp slightly movable. 
Tibia of palp without cylinder bristles or scopula interiorly but with short 
spines on each side, three externally and 1—3 internally as well as several 
longer weak spines and bristles. Maxillary process of coxa of palp very short 
and rounded. Dentition of female very like that of Solpuga Venator : of male 
very variable. The surfaces of the body are not spiny but covered with hairs 
and long setae which may be spiniform on the upper surface of the chelicerae 
and on the hind border of the head-plate of adult males. Adult male with a 
rotatable flagellum, and with a group of numerous modified hairs on the second 
sternite. Species of moderate size and plain colouration, strongly contrasting 
colours being unknown in this genus. Daesia Karsch. 
4. Tarsus of second and third legs composed of only one segment, of fourth 
leg comparatively long and slender, composed of two segments the distal one 
of which is much the shorter and is quite freely movable. Tibiae of second 
and third legs without a dorsal row of spines. Head-plate with a very distinct 
mesial groove, and armed usually with short spines, prickles, and forked 
bristles, whilst the upper surfaces of the chelicerae and the tergites, especially 
those of the thorax, are armed with stiff setae and cylinder bristles the longer 
ones of which are forked at the tip, or in the male with spines which are often 
very strong, the first thoracic tergite constituting a narrow spiny collar to 
the head-plate. Ocular tubercle with two stiff bristles projecting horizontally 
forwards. Tibia of palp inferiorly with spines and numerous cylinder bristles: 
short cylinder bristles, or long ones forked at the tip, occur also on the surfaces 
of the body and appendages generally. Maxillary lobe of coxa of palp fairly 
long and prominent. Adult male with a membranous rotatable flagellum, 
and there are several pairs of modified fleshy hairs on the second abdominal 
sternite in the male and sometimes also in the female. Species of small size 
and plain colour (except B. obscura). Blossia Simon, 
5. Similar to Blossia, but flagellum of male is a flexible densely ha ry rod, 
not rotatable but directed forwards and hidden between the chelicerae. 
Patella and tibia of palp without spines inferiorly. Ocular tubercle with a 
semicircle of fine setae on the mesial side of each eye. Anterior margin of 
head-plate almost semicircular. Upper jaw of male strongly compressed 
laterally, forming a vertical lamina except quite at the base. 
Melanoblossia Purcell. 
