IOWA ACADEMY OP SCIENCE 
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a. Legs annulate; pronotum with lateral margins ochraceous; second an 
tennal joint divided into eight jointlets l.varius Perty 
aa. Legs black; second antennal joint divided into 13 to 18 jointlets. 
b. Corium flavous or ochraceous with a median large oblong black spot; 
membrane pale at apex 2. macuUcolUs Stal 
bb. Corium and membrane black, corium with a small spot at base; 
pronotum with two small ochreous spots on posterior lobe in front. . . . 
3. guttatus Walk. 
l. H. VARius Perty ether a annulipes Stal) Mexico and South America. 
2. H. MACuLicoLLis Stal, Western United States, Mexico, Costa Rica. 
3. H. GUTTATUS Walk. Mexico. 
Subfamily AFIOMERINAE 
33. APIOMERUS Hahn 
Stal (f)95; Champion, 230; Am. et S., 354 {Herega) ; Stal (e)116 {Dichro- 
rhahdallus) ; Stal (e)117 (CalWbdallus) . 
This is a genus including many species with a broad range of territory. 
Fifteen are recorded from North America but two of them cannot be included 
in a key. Champion lists all except Nos. 1, 2, 4, 5, ,and is the authority for 
most of the characters and the plan of separation used below. Other sources 
of information I have noted with the discussion of the species, 
a. Female with orbicular foliaceous genital appendages; male with two 
divergent, upwardly curving spines at apex of last genital segment. 
{Apiomerus Hahn). Male claspers slender; sixth dorsal segment of male 
narrowly dilated posteriorly, truncate or rounded at apex; moderately 
large species. 
b. Pronotum and legs black; corium with a very large ochreous patch.. 
3. elatus Stal 
bb. Pronotum with an ochreous transverse band; tip of femora and base 
of tibiae ochreous i.repletus Uhl. 
aa. Female without foliaceous genital appendages. 
b. Female with sides of first genital (terminal dorsal) segment forming 
a. continuous outline with the connexival margin, 
c. Male with a single truncate process at apex of last genital segment; 
body sparsely pubescent b.ventralis Say 
cc. Male 'with two upwardly curved, more or less divergent spines at 
apex of last genital segment, 
d. Membrane infuscate. 
e. Male with the two spines at the apex of the last genital 
segment strongly divergent, arising from a short broad 
process, the apical margin of this segment not toothed nor 
angulate at the sides above the insertion of the claspers and 
the process not truncate; corium usually piceous 
6. suhpiceus Stal 
ee. Male with the two spines at the apex of the last genital 
segment not arising from a short process, 
f. Apical margin of terminal genital segment appearing 
emarginate on each side above the insertion of the 
claspers. 
