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IOWA ACADEMY OF SCIENCE 
7. C. DiMiDiATUs Latr. Mexico. 
8. C. MACULIPENNIS Btal is called a variety of C. dimidiatus Latr. by Cham- 
pion. Mexico. 
9. C. GERSTAECKERi Stal. Tcxas. 
22. MECCUS Stal 
Stal, (f)109; Champion, 209. 
This is a genus of very large insects resembling Conorhinus but distinguished 
from the latter by the longer post-ocular portion of the head and the more 
prominent pronotal tubercles. Champion separates the species as follows: 
a. Hind angles of the pronotum obtuse. 
bb. Corium with the base broadly and an ante-apical fascia ochreous, the 
membrane and the apical half of the clavus fuscous 
1. phyllosoma Burm. 
bb. Corium except at apex and at base of outer margin, apical half of 
clavus and basal margin of the membrane, dirty white 
2. pallidipennis Stal, 
aa. Hind angles of pronotum acute; corium with base, an ante-apical fascia] 
and the outer margin beyond the middle, ochreous.. 3. mexicanus H.-Sch. 
l. M. PHYLLOSOMA Bttrm. (246) California and Mexico. 
2. M. PALLiDiPENNis Stal (f, 110). Mexico. 
3. M. MEXICANUS H.-Sch. (viii, 71). Mexico. 
23. RHODNIUS Stal 
Stal, (f) 108, no, (e) 123. 
No species are found on the continent. 
R.prolixus Stal (Umosus Walk.) occurs in the West Indies. Its description 
may be found Berlin Entom. Zeitschrift, iii, 104. (1859). 
Subfamily PIRATINAE 
24. THYMBREUS Stal 
Stal. (b)113, (f)105, 109. (Opinus Walk.) 
A little known genus of which one species occurs in Mexico. 
T. CROCiNOPTERus Stal i=Pirates semirufus Walk.) Mexico. Length about 
11 mm. Clavus and corium white, membrane dark colored. Legs stout, setose. 
Pronotum piceous or fuscous. 
25. TYDIDES Stal 
Stal, (b)113, (f)105, 108; Champion, 213. 
A monotypic tropical American genus. 
T. RUFUS Serv. i=l)rachiatus Pertj=sulcicolUs Uhler). Pound in consider- 
able numbers in southern Mexico. Pronotum and clavus flavescent, latter with 
a dark spot, corium fuscous. Length about 18 mm. 
26. MELANOLESTES Stal 
Stal, (f)105, 107; Champion, 213. 
The first two species of this genus are common under stones and rubbish in 
the Atlantic coast and Gulf regions of the United States. They are active and 
bloodthirsty insects and infiict a severe wound (Uhler, Howard). 
