IIEMIPTERA IlETEROPTERA. 
45 
much longer than the first; first and second 
joints almost equal in length. - . 21. Gracchus. 
** Hind libijE long, slender, not foliaceous. Fourth 
joint of the antennjB slender, as long as the 
second and third together, 
t No acute point between the antennae. 
X Prothorax unarmed. 
§ Antennae somewhat shorter than the body ; 
second and third joints almost equal, or the 
second very slightly shorter than the third. 
Apical angle of the corium distinctly and 
narrowly extended beyond the middle of the 
membrane. 
X Prothorax not dilated. . _ . 
23. Quintius. 24. Myrsilus. 
X X Hind angles of the prothorax much dilated. 
§§ Antennae two-thirds of the length of the body ; 
second joint very slightly longer than the 
third; fourth joint as long as the second 
and third together. Hind angle of the 
prothorax on each side forming a somewhat 
acute tooth, which is inclined hiudward. 
Apical angles of the abdominal segments 
from the first to the fifth acute, slightly 
prominent. Apical angle of the corium 
hardly extending beyond the middle of the 
membrane, more shortly and less narrowly 
elongated than in Nematopus. 
Prothorax spinous. - 
An acute point between the antennae. 
X Third joint of the rostrum longer than the 
fourth. Hind angles of the prothorax 
prominent. - 
30. JuNiA. 31. Lucullia. 
H; Third joint of the rostrum shorter than the 
fourth. Hind angles of the prothorax not 
prominent. _ _ . - 
22. Saguntos. 
25. Nematopus. 
26. Acocopos. 
27. Merardus. 
28. Himella. 
29. Salapia. 
32. Petalops. 
33. Plaxiscelis. 
Genus 1. KHOMBOGASTER, C. H. 415. 
1. Rhombogaster luteus, C. H. 415. 
a, b. Honduras. From Mr. Dyson’s collection, 
c. Honduras. 
Genus 2. ACROGLYTRUM. 
Acroclytrum, Mayr, Verh. Zool. Sot, Gesell. Wien. xv. 432. Hem. Hel. 83. 
1. Acroclytrum muricatum. 
muricatum, Mayr^ Verh, Zool. Sot. Gesell. Wien. xv. 432. 
Australia. 
