Forficulide and Chelisochidex, families of Dermatoptera. 97 
1.1. Segmentum ultimum abdominale 
inerme. 
2, Forceps prope medium dentatus . 2. oannes, Burr. 
2.2. Forceps prope apicem armatus . 3. komarowi, Semenov. 
Sub-family 3—HUDOHRNIIN 44. 
Genus EUDOHRNIA, nov. gen. 
Corpus cylindricum, elongatum ; antennze sat robusta; segmentum 
primum validum, robustum, quadratum, carinatum, inter carinulas 
sulculatum ; segmento 2 minimo, globoso ; 3 elongato, apice clavato ; 
4 elongato, valido ; 5 longiori ; ceteris gradatim elongatis et conicis ; 
caput globosum, leve, suturis obsoletis: pronotum quadratum, mar- 
gine antico recto, postico rotundato: elytra sat rugulosa, carinula 
humerali sat acuta, brevissima : alee longe ; pedes longi ; abdomen 
eylindricum, punctulatum ; segmentum ultimum dorsale ¢ levius, 
minus dense punctulatum, breve, latum, medio impressum, vix 
tuberculatum ; pygidium ? declive, angustum: pygidium ¢ breve, 
latum, bi-acuminatum: @ parvum, angustum, globosum : forcipis 
bracchia ¢ valde elongata, horizontalia, subrecta, gracilia, basi 
triquetra, dente uno parvo medio armata; @ recta, subcontigua, 
simplicia, inermia. 
The body is so differently shaped in the insect known 
as Anechura metallica, the forceps and the general colour 
so different, that I consider it generically quite distinct 
from true Anechura: this opinion is confirmed by the 
peculiar carinated first segment of the antennz, which is 
quite distinctive. 
Type.—Forjicula metallica, Dohrn, Stett. ent Zeit., 
vol. xxvi, p. 9. (1865.) (Himalayas, Burmah.) 
Sub-family 4—DIAPEHRASTICIN 4. 
The species which I range in this family are rightly 
separated from Apterygida by Verhoeff, but that author 
wrongly revived the name of Sphingolabis, Borm., which 
must be reserved for those species which are related to the 
type of Sphingolabis, namely, Sph. furcifera, Borm., which 
is the male of Sph. semifulva, Borm., which latter must 
stand, as I have shown elsewhere (1905, Ann. Mag. N.H., 
ser. 7, vol. xvi, p. 495). 
At present it only includes certain African earwigs 
which fall into the genus Diaperasticus, 
TRANS. ENT. SOC. LOND. 1907.—PARTI. (JUNE) 7 
