April, 1902.] North American Species of Athysanus. 
24 3 
Color : vertex pale yellow with three transverse fuscous bands as in arcto- 
staphyli, the posterior one broken forward on each side until it touches the 
middle one, its median limb forming a crescent, the median line broadly 
fuscous connecting the crescent with the band in front. In dark specimens 
these bands become confluent and the yellow reduced to elongate spots be- 
tween them. Pronotum thickly and irregularly marked with fuscous omit- 
ting an elongate spot on the anterior margin. Scutellum dark, usually the 
margins, a spot on apex, and a pair of elongate tri-lobed ones on disc, pale 
yellow, Elytra light the inner apical cells smoky, nervures milky white, the 
cross nervures very broadly so, nervures broadly, heavily margined with fus- 
cous. In dark specimens often filling up all but a small milk white spot in 
the center of each cell. Face light with the sutures, arcs on front and a spot 
on apex of clypeus, black ; or b’ack with small spots in the middle of the 
facial pieces and narrow arcs light. Below dark, anterior and middle femora 
with two pale yellow bands. 
Genitalia : resembling vaccinii , female segment slightly less arcuate, its 
lateral margins and the pvgofers pale yellow ; male valve rounding, plates tri- 
angular, a spot on each side of the disc and stout hairs on the margin, yellow. 
Habitat : (Europe) X. Y., Mich, and Colo. Doubtless widely 
distributed in a northern range. 
Specimens of striatulus from Europe (Dr. Meliehar) agree with 
our specimens in evert' respect, except that in them the central 
anteapical cell is often divided while in our material this is rarely 
the case. The fact that this is variable in both series, however, 
proves it of no value. 
This and the preceding species, while unquestionably distinct, 
are still closely related and it is little wonder that Van Duzee con- 
fused the two forms. He first found vaccinii and described it as 
striatulus ? at the same time suggesting vaccinii for it if it proved 
to be distinct, then later finding the real striatulus , but as he re- 
garded the other as being striatulus, this he named instabilis. 
Besides the more definite black and white appearance of the 
elytra in this species, the two pale bands on the anterior femora 
will most readily separate it from vaccinii. 
ATHYSANUS ARCTOSTAPHYLI BALL. (Plate 16. fig. 5.) 
Ath ysanus arctostaphyli Ball. Ent. News, p. 173, 1S99. 
Resembling vaccinii and striatulus in form and color pattern. Shorter 
and stouter with a more angular vertex. General color deep, testaceous brown . 
Length, 9 nearly 4mm, <? 3.5mm ; width 1.25mm. 
Vertex slightly obtusely angulate, the apex produced, conical, twice wider 
than long, over half longer on middle than against eye, three-fourths the 
length of the pronotum. Front broad, convex in both diameters, wedge- 
shaped, narrowing directly to the parallel-margined clypeus. Elytra broad 
and short, usually flaring in the female, venation as in the three preceding 
species the apical cells shorter and the central anteapical not as strongly 
constricted. 
