MORGAN HEBARD 
305 
and femora with dark suffusions occupying nearly their entire 
cephalic and caudal faces. 
Immature examples of this species might easily be mistaken 
for adult, or nearly adult, examples of annulipes. 
LABIDURINAE 
Labidura riparia (Pallas) 
1773. Forficula riparia Pallas, Reise, Russ. Reichs., pt. ii, p. 727. [Shores of 
Irtysch River, western Siberia.] 
Panama City, Canal Zone, Panama, XII, 1913, (J. Zetek), 
2 9 , [U. S. N. M.]. 
BRACHYLABINAE 
Leptisolabis howardi Burr 
1910. [Le-ptisolaUs] howardi Burr, Proc. U. S. Nat. Mus., xxxviii, p. 449. 
[Cacao, Trece Aguas, Guatemala.] 
Boquete, Panama, III, 1914, (J. Zetek), 1 9 . 
This specimen agrees fully with the type in ambisexual features. 
Length of body, 8.5; of forceps, 1.75 mm. 
Labiidae 
SPONGIPHORINAE 
Many difficulties have been encountered in the present group, 
and, in order to correct these as far as the material here treated 
is concerned, we feel obliged to present the following key. The 
Sparattinae are here briefly diagnosed, as one of the genera there 
included until now, is found to be really a member of the Spongi- 
phorinae, showing nearest relationship to Spongovostox s.s. 
A.^ Attenuation at pronotum and base of abdomen not striking. Entire dorsal 
surface not subdeplanate. Coloration not brilliant or strongly contrasting. 
B. Eyes large, their length considerably greater than that of the cheeks. 
(Form weakly depressed. First tarsal joint longer than third. Pronotum 
subquadrate.) 
C. Size large. Tarsal joints heavy, with ventral surfaces heavily supplied 
with long hairs; first joint longer than combined length of second and 
third, second joint nearly as long as third. Spongiphora Serville 
Genotype . — croceipennis Serville 
* We are fortunate in having material of the genotypic species before us, of 
all of the genera here diagnosed, excepting Purex. 
TRANS. AM. ENT. SOC., XLIII. 
