2. PSYCHE [February 
TasBLE oF NorTH AMERICAN SPECIES. 
(Modified from Champion.) 
a. Discal cell of the elytra closed; posterior lobe of the head transverse; dull, 
pilose. (JTymenocoris). 
b. Antenna much longer than the pronotum, basal joint stoutest, second joint 
longest, a little thicker than the third, third a little shorter; insect minutely 
pubescent; legs unicolored; anterior tarsi with two claws; ocellilarge. (Cali- 
fornia) formicina Uhler. 
bb. Not as above. 
c. Anterior tarsi each with two claws. 
d. Legs unicolored, ocelli very small; first and second antennal joints very 
stout, the others slender. (Guatemala, Panama) concolor Champion. 
dd. Legs annulate; ocelli prominent; first and second antennal joints but 
little stouter than the others; pilosity of head and pronotum long. (Pan- 
ama.) annulipes Champion. 
cc. Anterior tarsi with a single claw. 
d. Intermediate lobe of the pronotum broad, and as long as posterior lobe; 
ocelli very small; antennae elongate, three outer joints slender. Body 
thickly pilose. (Guatemala.) pilosus Champion. 
dd. Intermediate lobe of the pronotum short, and much narrower than the 
posterior lobe; ocelli prominent. 
e. Anterior and intermediate lobes entirely flavous. (St. Vincent Isl.) 
flavicolis Westw. 
ee. Anterior and intermediate lobes not wholly flavous; antennae short, 
second joint shorter than the third. (Guatemala.) 
emarginatus Champion. 
aa. Discal cell of elytra open, posterior lobe of the head subglobose, smooth, shiny; 
anterior tarsi with two long claws. (1 ymenodectes) 
b. Intermediate lobe of pronotum measured along lateral margin longer than 
posterior lobe. (Guatemala.) angustatus Champion. 
bb. Intermediate lobe of pronotum measured along lateral margin not longer 
than posterior lobe. (United States and Mexico.) culicis Uhler. 
