Vou. Il, Pr, II] HEBARD—DERMAPTERA AND ORTHOPTERA 331 
portion, where the margins, particularly the ventral margin, are more 
decidedly convex-convergent to the rather blunt apex. Subgenital plate 
small, sharply concave, emarginate at apex, the two apices thus forming 
two very small, rounded projections. Caudal femora heavy as in female, 
and, similarly, much heavier and proportionately shorter than in robustus, 
but in this sex only reaching the apex of the abdomen. 
5 
Fig. 4—Halmenus eschatus, new species. Lateral outline of female. 
Type. Wenman Island, Galapagos Islands. (X 2) 
Fig. 5—Halmenus eschatus, new species. Dorsal view of male supra- 
anal plate. Allotype. Wenman Island, Galapagos Islands. (Much 
enlarged.) 
Measurements (in millimeters) 
Exposed Q Least width Length of 
3 Length of Lengthof length Width of between caudal 
body pronotum oftegmen tegmen tegmina femur 
Allotype 23. 5.8 4. 2p 1.8 11.3 
Paratype 23.3 See 3.9 1.6 i 7/ 10.4 
Paratype 22. Sad/ 3ad/ 1.8 Dee: 1st2 
Paratype 20.8 5 58) 3.6 1.9 2. 10.9 
Type 32.8 7.9 6.2 3c 2.6 14.5 
Paratype 29. oil 5.8 ine) 2.6 13.2 
Paratype PY « Holl oe 2.4 13.4 
The width of the caudal femur in the type is 3.9 millimeters”. 
In the present series this width varies in the males from 3. to 
3.2 millimeters, in the females from 3.8 to 4. millimeters. 
Coloration of type: Dorsal surface cinnamon-brown. Head with eyes 
buckthorn-brown, with a moderately broad postocular bar of mummy- 
brown, margined dorsad narrowly with tawny, occiput and vertex cinna- 
mon-brown, remaining portions of head ochraceous-tawny, flecked with 
chestnut-brown. Pronotum with dorsum and lateral lobes to impressed area 
cinnamon-brown, small impressed area smooth, shining, blackish chestnut- 
brown, bordered ventrad and particularly ventro-caudad with patches of 
ochraceous-buff, below this the lateral lobes are ochraceous-tawny, flecked 
with chestnut-brown. Tegmina cinnamon-brown, marbled with mummy- 
brown. Abdomen cinnamon-brown. Limbs cinnamon-brown, flecked with 
mummy-brown. Caudal femora with traces of three darker bars on ex- 
ternal face, internal portion of dorsal face and internal face ochraceous- 
tawny, with three distinct dark bands and genicular area mummy-brown. 
Caudal tibiz sayal-brown, tinged with drab internally, spines black in 
distal half. 
In general coloration the series before us agrees closely with 
the type, except that the males have the lateral post-ocular bar 
#2%n an average female of H. robustus cuspidatus Snodgrass, the caudal femur is 
16.6 millimeters in length and 3.4 millimeters in width. 
