72 Psyche [August 
Belg., p. 153, 1913) has more recently advocated the union of the 
Lethzini and Rhyparochromini in the following words: “After 
examination of many specimens of Microcoris and other exotic 
Myodochine I believe, however, that the number and position of 
the glandular spots have been overrated as a systematic character 
by Stal. One or other of these spots is sometimes lacking, at 
least on one side of the body. I therefore unite the Lethzaria 
with the Rhyparochromaria. Ang 
After a careful study of all the United States genera, in prepara- 
tion for my revision of this subfamily, I am convinced that, so- 
far at least as our fauna is concerned, Stal’s divisional diagnosis. 
will apply in separating the genera off into well defined groups. 
However my knowledge of paleearctic and exotic genera of Rhy- 
parochromine is too limited, at the present time, to permit me to. 
determine how well this scheme applies beyond our limits. Hence 
without more evidence than we have at the present time I am 
reluctant to abandon Stal’s scheme of divisions. 
As it is obviously impossible, in a paper of this character, to. 
enter into explanations, I have found it necessary to publish else- 
where such modifications of or additions to the present scheme, 
which I have here proposed. It will be noted that although I have 
adopted Stal’s divisions I have modified the wording somewhat, in 
order to bring out the relative importance or the greater signifi- 
cance of certain characters. Attention must also be called to the 
fact that the species mentioned in connection with certain genera 
is not necessarily the type unless so indicated. 
Key TO THE TRIBES OF SUBFAMILY RHYPAROCHROMIN. 
A. The two basal segments of the rostrum together not at all or 
scarcely longer than the head, third segment longest of all. 
Posterior glandular opaque spot of the fourth ventral seg- 
ment remote from the apical margin. Ocelli very widely 
SEP ATHICE «Sule aes LR ee PER OROI ee Cleradini Stal. 
AA. The two basal segments of the rostrum much longer than the: 
_ head, the first segment as long or nearly as long as the head. 
Ocelli not so widely separated. 
B. With the two glandular opaque spots laterally on the fourth 
ventral segment, widely separated, the posterior one placed 
closer to the posterior margin than to the anterior spot. 
