105 
INCITA AURANTIACA Edw. (PI. III, Fig. 6). 
Typical specimens from California (we have a @ before us that 
has been compared with type) have dark primaries, and secondaries 
with a moderate black border and prominent discal spot. We agree 
with Smith (Jour. N. Y. Ent. Soc. XV, 141) that Pyrocleptria cali- 
fornica Hamp. is a synonym. We have specimens from Arizona 
which evidently form a distinct race of this species which we charac- 
terize as follows: 
I, AURANTIACA TENUIMARGCO subsp. nov. (PI. III, Fig. 3). 
Primaries paler than in type form, median and terminal areas largely pale 
ochreous; secondaries with the outer border reduced to a mere line between 
vein 2 and anal angle, broadening slightly towards costa, discal spot smaller 
and rather indistinct. 
Hasitat. Redington, Ariz.; S. Ariz. 1¢,29’s. Types, Coll. Barnes. 
We have several more specimens in Coll. Barnes which are too 
poor to make types, but which agree in markings with the above. 
GROTELLA SPALDINGI sp. nov. (PI. IV, Figs. 1, 2). 
Head, thorax, and primaries pale creamy to ochreous; maculation very 
variable, in well marked specimens the t. a. line is represented by a dark spot in 
the cell, another in submedian fold and some scaling on inner margin just before 
middle of same, these may be more or less connected by a line of similar color 
proceeding slightly outwardly oblique from costa to inner margin, or the macula- 
tion may be reduced to the spot in submedian fold; t. p. line, when present, 
slender, brown, outcurved from costa to beyond cell, then inwardly oblique to a 
point on costa close to t. a. line; this line is rarely complete, and in many cases is 
reduced to a spot beyond the cell, one in the submedian fold and slight scaling 
on inner margin. Secondaries smoky with paler fringes. Beneath, primaries 
smoky, with ochreous costa and outer margin, secondaries pale ochreous. Ex- 
panse 20 mm. 
Hasirat. Vineyard, Utah (June-July) (T. Spalding). 104’s, 29’s. 
Types, Coll. Barnes. 
This species differs from typical Grotella species in the shape of 
the central process to frontal prominence; in Grotella this is truncate, 
in our species it forms a very prominent knife-like vertical ridge; the 
mid-tibiae are spined and the anterior tibiae armed with two slender 
claws at extremity. As the general appearance is distinctly like Grotella 
we prefer to keep the species for the present in this genus rather 
than create a new one based on slight differences of the frontal promi- 
