MORGAN HEBARD 
111 
the cliscoidal and median veins parallel and alone distinct, with 
branches of the latter (discoidal sectors) ol)lique. This agrees 
with one of the more usual types of tegminal venation in the 
Ectobiinae, but where tegniinal reduction has occurred in cei-tain 
Pseudomopids (such as is found in certain species of the genus 
Latiblattella) the results are practical!}^ the same as here shown. 
The male supra-anal plate is well i)roduced, this of little signifi- 
cance except that a large number of Ectobiid species have this 
plate strongly transverse. The short fourth joint of the tarsi is 
alone supplied with a pulvillus, which occupies its entire ventral 
surface. The tarsal claws are asymmetrical and unspecialized, 
a condition frequent in Ectol)iids, l)ut also of a type developed 
in those Pseudomopids to which this insect might be supix)scd to 
show nearest affinity. 
C'areful consideration of the evidence convinces us that, though 
aberrant in some features, the insect is a meml)er of the Ectobiinae. 
\ye consider the genus nearest Lissoblaita, differing in the broader 
head with much broader interocular space, distinctive pronotum, 
which is proportionately much larger with caudal margin trans- 
verse, vestigial wings, much shorter and heavier cerci and more 
Plectopterine male genitalia. 
The genus is monotypic. Genotijpe. — Asemoblntta nnna new 
species. 
(reneric Description. Size moderately lai’ge for this group of 
very small roaches; form very stout, elliptical, surface smooth and 
shining. Head triangular, very slightly longer than liroad, 
interocular space ver}^ wide, ocellar areas very poorly tlefined, 
ocellar spots very weak. Pronotum relatively large, shovving a 
weak transverse depressed area meso-ce})halad, broad caudal 
margin transverse, truncate, disk distinctly octagonal in out- 
line. Tegmina in form and general type of venation much re- 
sembling the type developed in Lissoblatta, broad, costal margin 
convex to the well rounded apex, discoidal sectors ol)liciue. Wings 
represented by atrophied pads. Dorsal surface of male abtlomen 
conspicuously specialized. Male cerci very short and heavy, 
much shorter and heavier than in Lissoblatta and Anaplecta. Male 
supra-anal plate produced, even more so than in Lissoblatta. 
^Male subgenital plate and appeiulages specialized, of a Plectop- 
teroid type. Cephalic femora, as in Lissoblatta, with ventro- 
TRAXS. AM. ENT. SOC., XLVII. 
