IOWA ACADEMY OP SCIENCE 
225 
K. Sides of the posterior lobe of the pronotum armed 
with a tooth or knob near the produced lateral 
angles; joint 2 of rostrum distinctly longer than 
joint 1 48. PLOEOGASTER 
KK. Sides of posterior lobe of pronotum without a 
tooth or knob near the lateral angles; posterior 
lobe with four spines 49. HEZA 
SYNOPSIS OP THE SPECIES. 
Subfamily BACTRODINAE. 
BACTRODES Stal. 
Stab (a) 80, (f) 124; Champion, 175. 
Individuals of this genus are not found north of central Mexico. They are 
as closely related to Emesidae as to Reduviidae, differing from the former in the 
less elongate anterior coxae and the cephalic prolongation of the ventral part 
of the prothorax. The two species occurring in central Mexico are separated 
by Champion as follows: 
a. Head and pronotum not spinose except feebly at the sides of the anterior 
lobe of the pronotum; scutellum with a short spine; abdomen not foli- 
aceous at sides 'biannulatus. 
aa. Head and pronotum with spines bearing hairs; scutellum and post 
scutellum each with a long spine; fifth abdominal segment strongly 
foliaceous spinulosus 
B. BIANNULATUS Stal. Mexico. 
B. SPINULOSUS stal. Mexico. 
Subfamily SAICINAE. 
SAICA Am. et S. 
Amyot et Serville, 371; Stal, (e) 129; Champion, 176. 
Anterior femora are setose; middle and hind legs are long; scutellar and 
pronotal spines are long. 
a. Femoral setae regularly arranged; legs, antennae and elytra nigro- 
fuscous; base of femora and costa of elytra vermillion red fuscipes. 
aa. Femoral setae irregularly arranged; femora and base of tibiae vermil- 
lion red; rest of legs and antennae brownish tibialis. 
aaa. Femoral setae regular; legs and antennae fuscous to nigro-fuscous; 
elytra ochraceous recurvata. 
1. S. FUSCIPES Stal. Mexico. 
2. S. TIBIALIS Stal. Mexico. 
3. S. KECURVATA Fabv. {Zelus recurvata Fabr.=;8aica rubella Am. et S.) 
Mexico. 
3. ORTHOMETROPS Uhler 
Uhler (Proc. Ent. Soc. Wash., iv, p. 508, 1901.) 
This is a monotypic genus easily distinguished from the other Saicina by the 
long head and the unarmed pronotum. 
O. DEcoRATA Uhler is a greenish yellow form found in Pennsylvania. 
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