412 
MEXICAN DERMAPTERA 
cheeks, and shorter caudal metatarsus, not as long as the third 
caudal tarsal joint, readily separates this species. 
The present specimen has the head slightly shorter and the 
pygidium distinctly more broadly truncate at its apex, than in 
the males of the type series. These differences do not, in our 
opinion, warrant racial or other separation. Other species of the 
Spongiphorinae often show much greater individual variation 
than this. 
Prosparatta flaTipennula (Rehn) (Plate XXVIII, figures 3 and 4.) 
1903. Sparatta flavipennula Rehn, Proc. Acad. Nat. Sci. Phila., 1903, p. 306. 
(Motzorongo, Vera Cruz, Mexico.] 
Through a rather unjustifiable error Burr has mistaken a speci- 
men from “Cayenne, Colombia” (!) as Rehn’s type of this species, 
and, having determined that specimen as Spongiphora insignis, 
has wrongly placed flavipennula in the synonjuny under that 
species.® 
The type and a large topotypic series of both sexes now before 
us, shows the species to be a distinct member of the genus Pro- 
sparatta, differing from its nearest relative, P. incerta (Borelli), 
in the marked and extensive flange of the ventro-internal margin 
of the forceps in both sexes, which, in the male, is strikingly 
enlarged distad.« Further comparison with incerta shows the 
present species to be somewhat less slender, with pronotum 
shorter and having its lateral margins scarcely divergent caudad, 
in the male with pygidium much more elongate, distinctly longer 
than twice its greatest width, from which point the lateral mar- 
gins converge to the sharply rounded apex, and with forceps 
lacking a submedian tooth. ^ 
The present species was known only from one*‘immature male 
and one adult female. We here describe an adult male. 
Topotype . — cf ; Motzorongo, Vera Cruz, Mexico. February, 
1892. (L. Bruner.) [Hebard Collection.] 
Agrees with the originally described female, here selected as single type, 
except in the following characters. Disto-dorsal abdominal segment with 
length over half its width, lateral margins very feebly convergent caudad, 
® Proc. U. S. Nat. Mus., xxxviii, p. 457, (1911). 
® This distinctive feature shows no variation whatever in the large series 
before us. 
’’ In males of incerta, the pygidium is scarcely longer than wide, with narrow 
apex abruptly truncate, and the forceps bear a well developed submedian tooth. 
