172 
able mandibles they can inflict painful bites, and are not 
pleasant to encounter incautiously. Their food consisting 
mainly, if not entirely, of self-caught insects, they must be re- 
garded as being more or less beneficial to man, and not hurtful. 
Owing to the paucity of material, most probably due to the - 
rarity of representatives of the family, I shall content myself 
for the present by offering only a synoptical key, collated princip- 
ally from that of Brunner van Wattenwyl ia his monograph of 
1888, and descriptions of three new species belonging to two new 
genera. 
SYNOPSIS OF AUSTRALIAN AND POLYNESIAN 
| STENOPELMATIDA. 
1. Tarsi with pulvill, metatarsus with two. Angle of inser- 
tion of hind femora visible laterally from outside. SECTION A. 
2. Anterior margin of pronotum straight or rounded, without 
submarginal furrow. Fastigium of vertex separate from frontal, 
more or less produced between the antenne. Anterior coxe 
armed with a spine. Middle tibiz below spinulose. 
3. Fore tibiz with foramina on both sides, or rarely on the 
internal margin. (One Madagascar genus, Hypocophus, only). 
ANASTOSTOMAT 4h. 
4. Hind tibie flattened above, with three to four spines 
(dilated at the base) on each side. Fore tibize smooth above. 
Wingless. Dernacripa, White (Br. Mon., 268, fig. 5). 
a. Pronotum shining. Hind femora always with some apical spines 
on each margin. Middle tibiz above unarmed, excepting the 
apical spines. Hind tibiz with a fixed small spur. 
b. Pronotum lurid, striped with brown. Abdomen chestnut-coloured. 
Cerci of male somewhat terete. Hind tibiz with three spines 
on the external margin besides the apical ones. New Zealand. 
D. thoracica, White. 
bb. Pronotum brown. Abdomen lurid, each segment banded brown at 
base and apex. Cerci of male depressed. Hind tibiz externally 
with four spines besides the apical. New Zealand. 
D. ligata, Brunner. 
aa. Pronotum very rough. Hind femora spined on both sides. 
Middle tibize above with two spines on external margin, besides 
apical. Hind tibiz with large articulately inserted spurs. 
New Zealand. D. heteracantha, White. 
4.4. Hind tibiz above rounded with numerous spines, not 
dilated. 
5. Vertex compressed (seen from above). Fastigium not so 
wide as first antennal joint, sulcate. Occiput rounded, not 
carinate. Pronotum truncate behind. Fore tibie above flat or 
terete. Tarsi without arolia between the claws. Femoral knee- 
lobes all spined. ANnastrooroma, Gray (Sr. Mon., 270, fig. 6). 
