34 ENTOMOLOGICAL NEWS [Jan:, 712 
tana the vitta is reflected upward at its apex, in bieti it is re- 
flected downward. 
Lytta arborea n. sp. 
Color metallic, dark blue, a small red dot on vertex, pubescence 
very short, sparse and mixed light and dark; form small, oblong; head 
subquadrate, strongly rounded angles, sparsely but very coarsely 
punctured, punctuation closest at frons and vertex; Jabrum short, 
strongly emarginate in front, sides rounded, punctured very finely 
and sparsely, labro-clypeal suture not distinct; clypeus short, trans- 
verse oblong, strongly rounded angles, sparsely and finely punctured; 
maxillary palpi long and slender, art. 2 long, very slender, cylindrical, 
3 is % as long as 2, and alittle thicker, last not quite as long as 2 but 
much thicker and truncate; antennae medium, art. I short and swollen, 
2 very small and beadlike, 3 a little longer than 1, cylindrical, 4-10 
subequal, slightly increasing in diameter, last longer than 10, strongly 
pointed; eyes small, flat, far apart, entire. 
Pronotum roughly hexagonal, a slight median impressed line, a large 
fovea on either side of line, on disk, feebly everted at posterior mar- 
gin, more strongly at middle, punctured like head, but very much 
sparser and scattering; scutellum short and squarish, almost impunc- 
tate; elytra 214 times as long as joint width, ora prominent nervures 
slightly visible, uniformly rugose, jointly rounded behind; ventral 
surface very faintly and sparsely punctured; Jegs medium, femora and 
tibiae a little more closely punctured than ventrals; tarsi long and 
slender; claws long and stout;¢ antenne long and delicate, last ven- 
tral deeply notched; 9 antennz very short, stouter, last ventral shal- 
lowly notched. 
Length 8 mm., width 2.5 mm. 
Type in my collection. Type locality, Humboldt County, 
California. 
Distribution Weitchpec, Humboldt Co., V. 20, 11, near Ham- 
burg, Siskyou Co., VI. 2, 11 (F. W. Nunenmacher). 
This rare insect was found by beating trees (? dogwood) 
along the river. It is very scare, but of great interest on ac- 
count of its unusual habits. None of our other indigenous blis- 
ter beetles, except the genus Pomphopoea (and possibly Mac- 
robasis unicolor Kby. which is occasionally taken on small 
bushes) are arboreal in habits. The present species is the first 
of the present genus known to live on trees. Structurally, it 
is not very close to any described form. 
