———» 8 Tingidae 
o 
= 2 ro) 3 S 
Rte ss a als iS 
go = 8 = sos 4 
“ey ‘S $e = = om 3 om 
=I = oo = >) =) om Z| Ss 
a= Bee 5 Se) eS alae eet 
= om r2 o 4 oy = o a 
S es o s ° = 
heures os 2 SS 
on 5 = a Ai = ss 3 
a or oO o 8s a A 
Sa a9 we x, _ 
JS) rb) = o ar) AS, 8 
s 3 = = re © = = 
x eo; ° a ore 
bs ‘S 8 i) rt oe 
— zg ut 2 fo Pele 
Ses oh a a 
1o Gu — are A 8's 
; eas bi al Rome oS Oo 
ae Capes) eS 4 caied 
ad CR cams > 
: 14 Nepidae 8 < | SN 
Nepoideae SU ales mR 
a _r @ toe ia 
fee) a» a=, al 
anil ee a i= — 
= o 
Pyrrhocoridae 1 g 3 
—_ 
; : Fa 
16 Clinocoridae «+#——— 8 
. a 
17 Polyctenidae pa [as fie 
aoe 
eu a | 
Cimicidae 
Cimicinae 
A 
Protheteropteron 
It will be seen that this disposition is widely different from the 
26 Notonectidae 
> 25 Corixidae 
[Ls 
order 
of families in Lethierry and Severin’s Catalogue, but it is, I believe, much 
less artificial. 
Superfamily 1. Cimicoideae. 
The articulation of the antennae with the head, is concealed from 
The families may be separated, temporarily as follows: 
above 
by a ridge. Ova deposited externally. Nymphs, in the last instar at least, 
with three orifices (on the 4, 5 and 6th tergites), the first of which is 
sometimes paired. (Scutellum nearly always greatly developed) . 
. Antennae not thus concealed. Scutellum usually mediocre or small . 
(2) 
(3) 
Abdominal segments normal. Tibiae not spiny . . . 1. Cimicidae. 
Tarsi consisting of three segments 
. Tarsi consisting of two segments . 
. Only five tergites seen (exclusive of genital segments). Tibiae spinose 
2. Thyreocoridae (= Cydnidae). 
(4) 
(7) 
Antennae with five segments; general habitus cimicidiform (Motamar! 
phoses unknown) . . - . . . 8. Urolabididae (— Urostylidae), 
- Antennae with four segments; general habitus not cimicidiform . 
(5) 
