MORGAN HEBARD 
409 
NOTES ON MEXICAN DERMAPTERA 
BY MORGAN HEBARD 
The study of a large collection of Dermaptera from Panama* 
has recently necessitated comparison with a number of species 
represented in the unstudied material of the order from IVIexico. 
As many interesting features are to be found in the Mexican 
material at hand, we take the present opportunity to record the 
series. The material is all in the Hebard Collection, with the 
exception of the few specimens otherwise credited. In addition 
to the types examined, four hundred and fifty-two specimens are 
here recorded, representing eighteen genera and twenty-seven 
species, of which two species are described as new. 
It is evident that, in this country, which shows such diversity in 
both topography and climate, the Dermaptera in many sections 
are numerous and rich in species. A great number of species 
undoubtedly still remain to be recorded, while many, already 
reported as the same as Central and South American species, 
will probably be found to represent distinct but closely related 
forms, when sufficient collections have been made. 
The preparation of a list of the Dermaptera of Mexico at 
present would be premature. 
Pygidicranidae 
PYGIDICRANINAE 
Pyragra fuscata Serville (Plate XXVIII, figures 1 and 2.) 
1831. Pyragra fuscata Serville, Ann. Sci, Nat., xxii, p. 34. [Cayenne.] 
San Rafael, Vera Cruz, Mexico, (C. H. T. Townsend), 1 
Cordoba, Vera Cruz, Mex., XI, 1887, (L. Bruner), 1 d'. 
Fortin, Vera Cruz, Mex., XI, 1887, (L. Bruner), 1 9 • 
Motzorongo, Vera Cruz., Mex., II, 1892, (L. Bruner), 9 juv. 
Minatitlan, Vera Cruz, Mex., II, 1892, (L. Bruner), 11 juv. 
The adults here recorded all have the tegniina dark and uni- 
colorous. The male from San Rafael is exceptionally heavy for 
the species, with abdomen expanding slightly distad, disto-dorsal 
* Trans. Am. Ent. Soc., xliii, pp. .301 to 334, (1917). 
TRANS. AM. ENT. SOC., XLIII. 
