1986] Harrington — New species of Orthea 367 
Variation. Female specimens lack spines on the foretibia and 
mesofemur. They also have the anterior pronotal lobe smaller, less 
rounded, and in a plane lower than that of the posterior pronotal 
lobes. 
Etymology. This species is named O. alveusincola , “river-bed 
dweller”, for the surprising habitat in which the type series was 
collected. 
Diagnosis. O. alveusincola, consuta, and procincta can be dis- 
tinguished from each other on the basis of their hemelytral color 
patterns. In alveusincola the lateral corial margin is narrowly pale 
complete to the subapical macula, which continues the pale area 
inward along the membranal margin in a characteristic V-shape. In 
both consuta and procincta the narrow pale area along the lateral 
corial margin extends posteriorly only about one-half to two-thirds 
the corial length stopping short of the pale subapical corial macula 
and that macula is broad and transverse, extending medially to the 
membranal margin instead of running at an angle as a stripe along 
the membranal margin. O. consuta lacks pale markings on the cla- 
vus, while both alveusincola and procincta have them, and O. con- 
suta also lacks the distinctive pair of orange maculae on either side 
of midline on the anterior one-half of the posterior pronotal lobe 
that are present in the other two species. O. consuta and procincta 
have the lateral margins of the posterior pronotal lobe broadly 
marked with orange, contrasting with the dark background; in 
alveusincola these margins are not so distinctly marked and only 
vaguely, if at all, lighter than the background. O. procincta lacks 
foretibial and mesofemoral spines in the males as well as females, 
while alveusincola and consuta males have rows of spines in both 
areas. 
Habitat. The type series of O. alveusincola was collected among 
rocks in the partially dry bed of a mountain or highland stream 
(approximate elevation 750 m.) in Panama. The insects were most 
abundant in hollows and around rocks where seeds of an overhang- 
ing tree were concentrated. They ran rapidly, often entering the 
edges of trapped pools of water, and flew readily when pursued, 
indicating full macroptery consistent with the temporary nature of 
the habitat. Two series of O. procincta from Peru that were exam- 
ined in this study each also have labels reporting collection in asso- 
ciation with a rapid stream at high elevations (500 m. and 1600 m.). 
