1918] 
Barber—Synoptic Keys to the Lygvide (Hemiptera) 87 
F. The lateral edge of the pronotum concolorous, not 
definitely demarked or bordered by an impressed line, 
much compressed or acute and beneath strongly im- 
pressed within the lateral margin of the propleura; 
the lateral margins nearly straight and converging 
anteriorly; anterior and posterior margins straight. 
Width of head across eyes a little narrower than across 
anterior submargin of the pronotum. Basal segment 
of rostrum near 'y equal to basal segment of antenna. 
Dorsal parts pilose. 
G. 
GG. 
HH, 
HH. 
Fore femora provided with a few tubercles and nu- 
merous long sete. Antennze somewhat incrassate. 
Basal segment of posterior tarsus nearly twice as long 
as second and third together. Hind tibia with strong 
bristles. Surface not strongly shining. 
Cistalia Stal. 
Fore femorz provided with several minute preapical 
teeth with or without sete. Antenne not incrassate 
and pilose. Basal segment of posterior tarsus a little 
longer than second and third segments together, but 
never twice as long. Hind tibia with short fine bristles. 
Pronotum very transverse, nearly twice as wide as 
long, posterior lobe sparsely punctate. Clavus 
ceflected to corium and provided with three regular 
rows of punctures. Corium finely punctate. An- 
tenne set close to the eyes, antenniferous tubercles 
less than one-half the length of the eyes. Membrane 
reaching apex of abdomen. Only macropterous 
forms known to me. (Type—Petissius diversus 
1 5 TC) en Reg UCM Rh Ter ne Re Oa Valtissius Barb. 
Pronotum more lightly transverse, almost impunc- 
tate except behind anterior margin. Clavus almost 
flat, with four series of punctures. Corium sparsely 
punctate. Antenne further removed from the eyes, 
antenniferous tubercles only a little shorter than the 
eyes. Membrane abbreviated. Dorsal parts very 
shining. Only brachypterous forrs known to me. 
(Genus Rhaptus Stal?).......... Xestocoris Van D. 
