183 
Lahiduridae, a family of the Dermaptera. 
elytra. Length of body 18’5-23 mm,; of forceps S’oOmm. 
^ ^ unknown. 
Brazil, Bahia (Mus. Vienna), 
This species is represented by three females in the 
Brunner von Wattenwyl collection, now in the Hof- 
museiim, Vienna, and will be fully discussed in a forth¬ 
coming work on the material of that Museum. 
Psalis gagatina, Klug. 
I have recently discussed the identity of this species 
(1909®, p. 126). I consider that Carcinophora rohusta, 
Scudder, with its synonymous Psalis columhiana, Borm., is 
the real P. gagatina of Klug. 
Psalis nigra, of Caudell, from Trinidad, is only known 
from the female; the almost square pronotum and short, 
thick antennal segments appear to be characteristic 
features. 
Psalis cinciicollis, Gerst., is discussed elsewhere in a 
recent paper (1909®, p. 113). Psalis picina, Kirby, falls as 
a synonym. 
Psalis thoracica, Serv., I believe to be referable to the 
Pyragrinae (q.v,, ante, p. 167). 
Sub-family l.—LABIDURINAE. 
The group includes Lahidura, and its immediate allies; 
in structure it agrees in many respects with the Psa- 
linae, but the mesonotum is less rounded posteriorly. The 
organs of flight are all well developed; the antennae are 
multisegmentate; the forceps rather slender and usually 
remote at the base. 
TABLE OF GENERA. 
1. Pedes breves ; femora postica pronoto 
baud lougiora; tarsorum posti- 
corum segmentis 1 et 3 subaeque 
longis, pronoto unitis baud longi- 
oribus (pronotum postice ampli- 
atum).1. Paralabidura, n. g. 
1.1. Pedes longi; femora tarsique pos- 
tici pronoto longiores ; tarsorum 
posticorum segmentum primum 
tertio longius. 
