a > ian 
SUBFAMILY IV. ISSINZE. 
TABLE OF GENERA, 
Wings much shortened, not reaching the tip of abdomen, or rudimentary ; the 
tivstvel jovdoyehiicesk BAe Noma am Emoctaee pee Oop BAOE anon arAlat stoaeyares Sb aes 4. 
Wings not unusually shortened, complete. 
isleeral proline Oe eo BIAS dos ea dn) BOAADRA rT Chon et Sanne iia Cae b mcs: Bt 
Heaal truncated, before the eyes not or scarcely prominent ; wings strongly de- 
cumbent. 
Posterior tibiae with three spines........ afspabe halen ie eee heir 90 208 Shier eres 2. 
Posterior tibize with two spines. 
Costa before the middle or anteriorly beneath, very distinctly dilated : 
interior ulnar vein simple, exterior ulnar vein and the radial vein near 
the base, forked ; vertex smooth... G. 1. Hysteropterum, A. et S. 
Costa simple beneath towards the base, excepting a very obsolete dilation ; 
wings behind the apex of the clavus oblique, very obtusely rounded, the 
interior ulnar vein nearly simple ; first joint of posterior tarsi short 
G. 2. Falcidius, Stal. 
Thorax at base slightly and broadly sinuated. 
Wings vitreous, regularly reticulated, obtusely rounded at apex ; costa 
dilated, membrane of costa with transverse veins, ulnar vein in the 
inenidkallls: Git qyalloren, stop eral 5 6 Geiss Meni cite oleae G. 3. Nezthus, Stal. 
Wings at apex very slightly deeply angulately emarginated or incised, and 
rarely with transverse veins, not reticulated ; the vein of the anal area 
Hoydkeel?e  iohKaoere Mabey ini ollos Guibeormypyxessclo 58 saee. Seaecoonc 
G. 4. Thionia, S:al. 
Wings at apex entire; frons and clypeus lying nearly in the same plane, the 
frons somewhat reclining and slightly reflexed G. 5. Issus, Fabr. 
2 Vertex very short, sublunate, anterior margin strongly carinated ; froms rounded, 
prominent, the central plate almost circular, flattened and very much raised 
above the surrounding area, exterior margins strongly carinate, curving con- 
formable with the central plate. Pronotum longer than the vertex, lunate, 
bluntly curved on anterior margin, posterior margin deeply sinuated. Hem- 
elytra long and narrow, a little obliquely rounded at tip, costal and sutural 
marvins nearly straight ee eer Coan Aphelonema ns Uihilens 
Vertex subquadrate, deeply scooped out, anterior angles rectangular with bound- 
ing keels high, anterior margin arched in the centre ; frons longer than wide, 
sides convexly curved, middle keel extends 21/, its length downwards. Pron- 
otum acutely triangulay, extending forward almost to front line of eyes, deeply 
emarginated behind. Hemelytra long and narrow, vitreous, hispid, regularly 
parabolic on the costal margin, from the base to the inner apical angle, the 
inner margin straight ; field with a net-work of large rounded areoles ; costal 
area obliterated . ... LB)?! G. 7. Dictyonissus, Uhler. 
Abdomen distinctly compressed ; costa remote from the margin ; anterior tibia 
longer than the femo;a and trochanters together. . G. 8. Tyiana, Stal: 
_3 Costa occupying the same margin, beneath anteriorly or before the middle, dilated; 
po-t rior tibize wih one spine _.. at G. 9. Mycterodus, Spinola, 
4 Wings tailed, apical angle of the commissural produced, slightly curving upwards; 
clavus not attaining the apex of the wing. Costa dilated, remote from the 
margin, dilated part with transverse veins, not inflexed ; posterior tibize with 
EWES DINGS Walia act! ssvsrs 2) OOF cis tg tor ear yaea G. 10. Conosimus, Mulsant. 
