306 
PANAMA DERMAPTERA 
CC. Size medium. Tarsal joints slender, with ventral surfaces moder- 
atelj^ supplied with shorter hairs; first joint about as long as combined 
length of second and third, second joint very much shorter than third. 
Vostox Burr 
Genotype. — brunneipennis (Serville) 
BB. Eyes, small, their length distinctly less or nearly equalling that of the 
cheeks, never, however, less than half that of the cheeks. 
C. Form weakly depressed. First tarsal joint longer than third. Pro- 
notum sub quadrate. 
D. Tarsal joints heavy, with ventral surfaces heavily supplied vdth 
long hairs. Purex Burr 
Genotype. — frontalis (Dohrn) 
DD. Tarsal joints slender, with ventral surfaces moderately supplied 
with shorter hairs. 
E. Size medium. Cephalic sutures distinct. Occiput flattened. 
General facies very similar to the type of S pongiphora. 
Spongovostox Burr 
Genotype. — quadriniaculatn (St&l) 
EE. Size small to minute. Cephalic sutures subobsolete. Occiput 
weakly convex.® (Fourth antennal joint very slightly more than half 
as long as third.) Microvostox new genus 
Genotype.— aZfer (Burr) 
CC. Form rather strongly depressed. First tarsal joint slightly shorter 
than, or equal in length to, third. Pronotum distinctly longer than wide. 
(Size medium. General facies very similar to the type of Spongiphora.) 
Prosparatta Burr 
Genotype. — incerta (Borelh) 
AA. Attenuation at pronotum and base of abdomen striking. Entire dorsal 
surface subdeplanate. Coloration brilliant and strongly contrasting. (Eyes 
very small, their length considerably less than one-half that of the cheeks.) 
Sparattinae 
Spongiphora croceipennis Serville= 
1831. Spongiphora croceipennis Serville, Ann. Sci. Nat., xxii, p. 31. [Brazil.] 
Cabima, Panama, V, 24 and 29, 1911, (Busck), 1 cf , 1 9 • 
La Chorrera, Pan., V, 17, 1912, (A. Busck), 1 cf’. 
® Though the general facies of the species assigned to this genus show unmis- 
takably a Spongiphorine ancestry, the less deplanate head with sutures 
subobsolete has caused much confusion with the genus Labia. From the 
forms properly referable to that genus, those of the present can, indeed, only 
be separated by the different general facies and shorter fourth antennal joint. 
In Microvostox this joint is only slightly more than half as long as the third; in 
Labia it is as long as, or very little shorter than, the third. 
