1964] 
Barr — Duvaliopsis 
59 
itself is not diagnostic, since certain species of P seud anophthalmus , 
e.g. the gracilis section of the hubbardi group, have equally long trans- 
fer apparatuses. Even the single copulatory piece is not peculiar, since 
P. cumberlandus Val. and its allies have but a single copulatory piece. 
In conclusion, there appears to be no reason why Duvaliopsis should 
be maintained as a genus distinct from Pseudanophthalmus. Its dis- 
tinctiveness is on the order of magnitude of the difference between 
various species groups of Pseudanophthalmus , and it is to this status 
which I propose it be relegated. 
The study of the Knirsch material has suggested certain changes in 
the taxonomic arrangement proposed by Jeannel (1928). A revision 
is given below. 
Pseudanophthalmus Jeannel 
Jeannel 1920: p. 154; type species: Anophthalmus menetriesii Motschulsky. 
SYNONYM: Duvaliopsis Jeannel 1928: p. 106; type species: Anophthalmus 
bielzi Miller. 
bielzi group 
(= Duvaliopsis Jeannel) 
Size small (3. 3-4.0 mm.), integument pubescent. Head rounded or 
slightly wider than long; eyes absent, their site indicated in some 
species by a small, oblique cicatrix; antennae about half the body 
length (except in rybinkskii) . Pronotum transverse, 1/5 to 1/3 wider 
than long; margins arcuate in apical 1/2 to 2/3, then sloping evenly 
back to the hind angles with little or a very brief sinuosity; hind angles 
rather small, variable; disc with sparse, long pubescence. Elytra 3/5 
as wide as long, subconvex or depressed; striae regular or irregular, 
deeply or shallowly impressed, finely punctulate (except in bielzi ) ; 
first discal puncture at the level of the 4th marginal puncture, slightly 
anterior to it, or slightly posterior; apical recurrent groove highly 
variable, parallel or oblique to the suture, connecting with either the 
3rd or 5th longitudinal stria, with or without a crochet, but always 
terminating well in advance of the apical puncture. Aedeagus usually 
arcuate and moderately slender, the basal bulb set off from the median 
lobe by a slight constriction, the apex attenuate with the tip reflexed 
(produced into the shape of a boot in meliki) ; transfer apparatus a 
single, elongate, spoon-shaped copulatory piece with its concave side 
facing the left side of the internal sac, its dorsal and ventral edges 
rolled and sclerotized and apically produced to give a bifid appearance ; 
internal sac with moderate armature of small, blunt scales; parameres 
with 3 or 4 setae at their apices. Type species: Anophthalmus bielzi 
Seidlitz. 
