EDA sp EDA
Family : Gnaphosidae
EDA LOGYARD 18-11-2014 TUE 9:45AM
Family: Gnaphosidae (Ground Spiders)
The head is not sharply set off from the thoracic region. Gnaphosids are fairly easily recognized by their cylindrical and parallel spinners, the anterior pair being slightly longer, and more heavily sclerotized than the posterior pair. The anterior spinners are separated from each other by approximately one spinner diameter with some exceptions, e.g. Micaria in which genus anterior spinners are closer.
The Mouth Parts:
Gnaphosids are also characterized by having 2 tarsal claws, claw tufts, and scopulae.
and in some species there are small brushes of more and less stiff hairs present distally on metatarsus IV.
The abdomen is often provided with dense
coverage of short sleek hairs giving the abdomen a mousy-like
appearance. Sometimes erect, curved setae are present, particularly
at the anterior edge (see for example images of Gnaphosa lucifuga).
Many species are uniformly coloured in greyish-brown or blackish
colours. However, abdomens of some species have striking white
patterns of spots or lines while abdomens of others are iridescent.
Most males have a scutum at the anterior end. The spiracle is
situated close to the spinners. Gnaphosids are entelegyne spiders
often having rather large epigynes with sclerotized structures. They
are somewhat variable and closely related species may be difficult
to identify. Male palps are usually provided with a large tibial
apophysis and the shape of this is important when identifying the
|Legs are NOT stout. This is unusual compared with other species in the same family which usually have stout legs as a ground walking spiders.|
The Mouth Parts:
Labium is triangular shape.
The carapace is ovoid and rather low being smoothly convex and with a distinct fovea 凹 at behind.
8 eyes in 2 rows. The posterior medial eyes are
not round, but oval, triangularly reduced to slits. All eyes are
with a silvery sheen except for the anterior medials, which are