—169— 
represented in England and on the Continent, but it is not unlikely that 
other examples will yet be added from the Pacific Coast region where 
the faunal peculiarities resemble those of Europe much more closely 
than the Atlantic region. As arule our species are a little larger than 
the corresponding European forms, and the pronotal striation is less 
distinct. 
I am placed under renewed obligations to Mr. P. R. Uhler for the 
loan of very valuable material in this genus and in #ythoscopus without 
which the present studies would have been much more imperfect. 
The following synoptic key to our described species I have prepared 
simply as an aid to determination. It is purely artificial and does not 
pretend to exhibit to any extent the natural relationship existing between 
the species. The value of the black dot on the propleura as a specific 
or even a sexual character is perhaps somewhat questionable, but as it is 
practically uniform in all the species before me, and a convenient 
character, I have ventured to make use of it, trusting to future observ- 
ations to prove or disprove its utility. 
SYNOPTIC TABLE. 
I (16) Face unspotted. 
2 (7) Elytra hyaline or more or less obscured, not transversely banded or maculated 
toward the apex. 
3 (6) Propleura without a black spot. 
4 (5) Entire insect green; elytra hyaline, nerves green.............. I. viridis © 
5 (4) Ferruginous ; elytra hyaline or neariy so, with a piceous band on the base of 
MeCN) 6a16 Seen copa eee rponoOs Goole epobonr Has cour 2. basalis 
6 (9) Propleura with a black spot. Color dull green or brown, elytra smoky, at 
leason) the apex and ner MALIN ascii 2s dejciem eee: I. viridis <j’ 
7 (2) Elytra colored, more or less distinctly banded or spotted with hyaline, at least 
toward the apex. 
8 (15) Propleura with a black spot. 
9 (10) Ferruginous ; clypeus short and broad, lore inconspicuous ; size large..... 
3. ferrugineoides 
10 (9) Brown or brownish, at least above, or pale yellow ; clypeus of medium length 
or long, loree conspicuous (except in ¢r¢macudata). 
11 (12) Rugz very prominent ; clypeis long and narrow, ventral plate of O dist- 
inctly convex, elytra brown with a pale point on the disk....4. insignis 
12 (11) Rug not very prominent; clypeus broad, impressed beyond the lore ; 
ventral plate of © flat. 
13 (14) Beneath and legs dark brown or black ; elytra brown trimaculate with pale. . 
5. trimaculata 
14 (13) Beneath and legs pale ; elytra whitish hyaline bifasciate with brown....... 
6. bifasciata 
15 (8) Propleura without a black spot. Yellow, elytra bifasciate with brown...... 
7. flavescens 
16 (1) Face spotted. Insect pale green; elytra hyaline, nerves fuscous or at least 
Minoan WED) ULOWNIGI.). oss. sahiecveviccvdsevesunssssaines 8. punctifrons 
