310 
PANAMA DERMAPTERA 
Specimens Examined: 10; 3 males, 4 females and 3 immature examples. 
Cabima, Panama, V, 22 to 28, 1911, (Busck), 2 cf , 3 9 , type, allotype, para- 
types, 3 juv. 
Lion Hill, Canal Zone, Pan., VI, 18, 1907, (Busck), 1 cf , paratype. 
Paraiso, C. Z., Pan., II, 8, 1911, (Busck), 1 9, paratype. 
Prosparatta incerta (Borelli) 
1905. Sparatta incerta Borelli, Boll. Mus. Zool. Anat. comp. Torino, xx, no. 
516, p. 11, figs. [Puerto Bertoni, Paraguay.] 
Porto Bello, Panama, II, 25, 1911, (Schwarz), 1 9 . 
The series recently recorded by Rehn from the Madeira River'^ 
is before ns. In addition, we have two males from La Guayra, 
Venezuela, taken July 2 to August 10, 1910, by W. Robinson. 
These latter show' great size variation; length, including forceps, 
11.5 and 15.5 mm.; and are much paler than the others, head, 
pronotum and tegmina auburn, dorsal surface of abdomen San- 
ford’s brown. 
The specimen from Panama shows no difference of diagnostic 
value from this series. Its size is remarkably small; length, 
including forceps, 8 mm. ; while the head and prozona are very 
pale hazel. It is evident from this material that the present is a 
very plastic species. 
All of the females before us have the forceps showing the 
characteristic proximal truncate projection, with shaft 
straight to the incurved apex, its ventro-internal margin roughly 
and weakly irregular, subserrate, distad showing a feeble flange 
which terminates suddenly but roundly at the base of the distal 
curvature. 
MICROVOSTOX new genus 
Difficulty has been experienced in separating from Labia the 
smaller of the species of the Spongiphorinae, which have been 
referred to Spongiphoi^a and more recently to Spongovostox. 
The present genus is difficult to define properly, but we agree with 
Borelli® and Burr® in deciding that certain species must be re- 
moved from Labia, though we feel that they show sufficiently 
great differences irom Spongovostox to prevent their being assigned 
to that genus. 
^ Trans. Am. Ent. Soc., xlii, p. 221, (1916). 
® Boll. Mus. Zool. Anat. comp. Univ. Torino, xx, no. 516, p. 8, (1905). 
® Ann. k.-k. Naturhist. Hofmus. Wien, xxvi, p. 334, (1912). 
