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IOWA ACADEMY OF SCIENCE 
bb. (See also bbb.) Lateral and anterior angles of the pronotum eacb 
with a short tooth; the base feebly bisinnate or subtruncate in the 
middle; scutellum broadly foliaceous at the apex. 
c. Male with apex of last genital segment produced in the middle 
and armed with a long sulcate spine; the genital lobes narrow; 
head with a pale spot between ocelli. 
d. Pronotum with the posterior lobe reddish or stramineous or 
with spots of that color ; the tooth at the lateral angles black . . 
5. zehra Stal 
dd. Pronotum rufous, the tooth at the lateral angles included, the 
basal margin pale Q. rufofascAatus Ch. 
cc. Male without a sulcate spine at the apex of the last genital segment 
7. cinctus Pabr. 
ccc. Male with apex of last genital segment not produced in the mid- 
dle, armed with a short, slender, sulcate spine, 
d. Head with a pale spot between the ocelli; male with the genital 
lobes strongly clubbed at the tip S.mexicanus Ch. 
dd. Head with a pale spot between the ocelli and a pale medium 
line extending from it to the base; male with the genital lobes 
very slender ^.Uneaticeps Ch. 
bbb. Lateral angles of pronotum with a rather long, outwardly directed 
spine, anterior angles with a long tooth, base subtruncate in middle; 
scutellum narrowly foliaceous 10. nigropictus Ch. 
1. PsELLiopus PUNCTiPES Am. et S. California. 
2. P. spiNicoLLis Champion. Mexico, California. 
3. P. TUBERCULATus Champion. Mexico. 
4. P. iNERMis Champion. Mexico. 
5. P. ZEBRA stal. California and Mexico. {=Harpactor cinctus Walk.) 
6. P. RUFOFASciATTJS Champion. Mexico. 
7. P. CINCTUS Fahr. {=^praecinctus Guer.) Massachusetts to Texas. 
8. P. MExicANUs Champion. Mexico. 
9. P. LiNEATicEPs Champion. Mexico. 
10. P. NIGROPICTUS Champion. Mexico. 
35. ZELUS Pabr. 
Fabricus (b)281; Stal (f)70, 88; Am. et S. 368, 370; Champion, 251. 
This is an American genus occurring throughout the hemisphere. It in- 
cludes Euagoras Burm. {=Evagoras Am. et S.), Diplodus Am. et S., and Pindus, 
Stal. Many of the species are very variable in color and in other characters 
usually used for identification. The subgenera are distinguished in t];ie Key to 
Genera, pp. 7 and 8. In the following key to the species. Champion is re- 
sponsible for the method of identification of about half of the species, Stal 
for about one-third, and specimens at Iowa State College for several entirely 
and many others in part. 
Subgenus zelus Pabr., Stal. 
Lateral angles and disc of the pronotum unarmed. 
a. Body wholly or partially black; antennae and legs black. 
b. Femora with two stramineous rings; those on the anterior pair some- 
times obsolete; pronotum with a single black patch on stramineous 
disc; body robust... 2. ruHdus Lep. et Serv. 
