416 
MEXICAN DERMAPTERA 
and decidedly shorter than in male; shaft straight and weakly tapering to near 
apex, where it is weakly incurved, strongly tapering and slightly flattened in 
cross section, proximal portion subtriquetrous, ventro-intemal margin weakly 
lamellate and roughly and irregularly denticulate, this moderately so in proximal 
portion of mesal third, the dorso-internal margin showing a brief, weak, irreg- 
ularly projecting proximal flange which terminates caudad in an irregular blunt 
tooth, this margin beyond showdng a few blunt denticulations. 
cf, type 
9 , allotype 
Measurements {in millimeters) 
Length of 
Length of 
Width of 
Length of 
Length of 
body 
pronotum 
pronotum 
tegmen 
forceps 
5.4 
.9 
.85 
1.65 
2.3 
6.6 
.95 
.85 
1.7 
1.7 
The allotype is somewhat pressed out, the length measurement being, in 
consequence, greater than if the specimen were in normal position. 
General coloration shining blackish brown, the brown more decided on 
tegmina, distal portion of abdomen and on forceps. Tegmina with an elongate 
streak of buffy on each shoulder, extending one-half the distance to the apex. 
Wings with exposed surface buffy, suffused with dark brown rather broadly 
along sutural margin, very narrowly along costal margin. 
The species is known from the described pair. 
Microvostox schwarzi (Caudell) (Text fig. 2.) 
1907. Labia schwarzi Caudell, Proc. U. S. Nat. Mus., xxxiii, p. 173. [Cacao, 
Trece Aguas, Guatemala.] 
Motzorongo, Vera Cruz, Mexico, II, 1892, (L. Bruner), 5 cf, 
6 9,2 juv. 
These specimens show little variation and agree fully with the 
typical series which is before us, and from which we select a male 
example as single type. 
LABIINAE 
Labia nodifer Hebard 
1917. Labia nodifer Hebard, Proc. Acad. Nat. Sci. Phila., 1917, p. 240, pi. 
XVI, fig. 5. [Cacao, Trece Aguas, Alta Vera Paz, Guatemala.] 
Fortin, Vera Cruz, Mexico, XI, 1887, (L. Bruner), 1 9 . 
Cordoba, Vera Cruz, Mex., Ill, 1908, (F. Knab; in bromeliads), 
1 c?’, [U. S. N. M.]. 
These specimens were measured and listed at the time the 
species was described. 
Labia rotundata Scudder 
1876. Labia rotundata Scudder, Proc. Post. Soc. Nat. Hist, xviii, p. 257. 
[Mexico.] 
1903. Rehn, Proc. Acad. Nat. Sci. Phila., 1903, p. 305. [Ori- 
zaba, Vera Cruz, Mexico.] 
