113 
sent Labrador and Massachusetts — the latter Gressou's types of 
notabilis. (Coll. Am. Ent. Soc.) 
XVI. Genus PRISTIPHORA Latreille. 
Pri8tiphora Latreille, Fam. Nat. du Regno Animal, Paris, 1825. 
Pristiphora Konow, Deutsche Ent. Zeits., xxxiv, 1890, p. 238. 
Body short, ovato; clypeus truncate at apex; pentagonal area obsolete; claws 
either with subapical tooth or bifid; first transverse cubital of anterior wings often 
wanting or hyaline; eighth (seventh!) dorsal segment of the male carinate, carina 
not prominent at apex; sheath of female with rather dense scopa at tip. — Konow. 
The species of this genus form a fairly well defined group, but are 
often referable rather from the sum of the characters than from any 
particular feature. The absence of the first cubital nerve is by no means 
constant, even in the same species, although usually a good generic 
character and to be relied upon. The claws are sometimes very evenly 
notched at the tips, but not deeply so. When this is the case, however, 
the smooth vertex, which is a very constant characteristic of the genus, 
taken in connection with the other characters, will usually determine 
the true affinities. Very little is known by actual rearings of the habits 
of the species, but in this particular they probably present no striking 
peculiarities. A number of them teed on willow and l\ idiota Norton is 
an important enemy of the cranberry. 
TABLE of SPECIES. 
Females 
I. Head, thorax and abdomen hlack. 
Wings strongly infhseated 1. nigra n. sp. 
Wings not or very slightly infuscated. 
Tegulae hlack. 
Head small, narrow, not much more than one-half width of thorax. 
Posterior tibiae and tarsi unicolorous, pale.. 2. la bradoHa Norton. 
Posterior tibiae pale, tips black; tarsi hlack.. 3. ttycophanta Walsh. 
Head broad, much more than one-half width of thorax. 
Posterior tibia' strongly infuscated, nearly hlack. 4. lata Cresson. 
Posterior tibia' pale except tips, which with tarsi are brown. 
5. sishiyouensia n. sp. 
Tegulae pale. 
Labrum hlack; extreme tips only of hind tibiae hlack. 
Stigma brown (5. murtfeldtUu n. sp. 
Stigma luteous, pale at base 7. relatwa Norton. 
Labrum, together with tip of clypeus, pale; apical half of hind tibiae 
hlack 8. banksi n. sp. 
II. Head hlack; thorax and abdomen, or abdomen only, distinctly marked or banded 
with yellow. 
1. Pronotum black or only the extreme angle yellow; abdomen, with segments 
2 to 5, yellow, sometimes interrupted centrally above 9. idiota Norton. 
2. Pronotum, with outer one-half, yellow; femora yellow; segments 1 to 4 
reddish yellow, infuscated 10. dyari n. sp. 
13449— No. 3 8 
