320 HEMIPTERA-HETEROPTERA. 
joints 1 and 2 stout, 3 and 4 much more slender, 2 more than twice as long as 1 and longer than 3, 3 a 
little longer than 4. Rostrum reaching to a little beyond the apex of the prosternum. Pronotum hollowed 
and sharply margined at the sides, the lateral angles nodose and somewhat prominent, Scutellum strongly 
depressed beyond the middle. Orifice of the metastethium long and curved,extending round to the anterior 
border of the metastethium. 
Length 43-42 millim. (¢ 9.) 
Hab. Panama, Volcan de Chiriqui 8000 feet (Champion). 
Four examples. 
2. Macrotrachelia albovittata, n.sp. (Tab. XIX. fig. 15, 2.) 
Elongate, narrow, very sparsely pilose, almost smooth, shining; black, each elytron with a broad whitish 
vitta extending down the clavus and corium from the base and continued along the outer portion of the 
membrane to near the tip; the third and fourth antennal joints, as well as the tip of the second, and all 
the tibiz at the apex, ochreous, the tarsi obscure testaceous. Head and pronotum as in M. elongata ; 
antenne elongate, joints 1 and 2 a little stouter than the others, 2 more than twice as long as 1 and a 
little longer than 3, 3 longer than 4. Rostrum reaching to the apex of the prosternum, Orifice of the 
metastethium long and sinuously curved. 
Length 4 millim. (@.) 
Hab. Guatemata, Cerro Zunil 4000 feet (Champion). 
One specimen. Very like Jf. elongata, but with the first and second antennal joints 
much more slender and the fourth and fifth joints entirely ochreous, the membrane 
more broadly hyaline externally, the orifice of the metastethium sinuously curved. 
3. Macrotrachelia nitida, n. sp. (Tab. XIX. fig. 16, ¢.) 
Moderately elongate, narrow, very sparsely pilose, almost smooth, shining; black, each elytron with a broad 
whitish vitta extending down the clavus and corium from the base and continued along the outer 
portion of the membrane to near the tip, the tarsi obscure testaceous. Eyes moderately large. Antenne 
rather short and stout, joints 3 and 4 more slender than 2 and subequal in length, 2 more than twice as 
long as 1,3 much shorter than 2. Rostrum reaching to a little beyond the apex of the prosternum. 
Pronotum rapidly and obliquely narrowing from the base forwards, the two lobes separated by a very 
deep transverse groove, Orifice of the metastethium short and transverse. 
Length 34 millim. (¢.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. Very like M. elongata and M. albovittata, but with the antenne 
shorter, stouter, and entirely black, the eyes larger, the tibia uniformly black, the 
orifice of the metastethium differently shaped. 
4, Macrotrachelia thripiformis, n. sp. (lab. XIX. fig. 17, ¢.) 
Moderately elongate, narrow, subfusiform, clothed with a few scattered hairs, shining, the elytra opaque, the 
vittes excepted; black, the elytra with a streak or space along the inner edge of the clavus and a vitta on 
the outer portion of the corium extending from the base downwards flavo-testaceous, the membrane 
broadly hyaline externally, the third antennal joint entirely ochreous or flavous, the tarsi flavo-testaceous 
at the base; the pronotum and scutellum with very fine scattered silvery pubescence, the elytra with fine 
lines of glistening golden pubescence on the clavus and outer portion of the corium, the two lines on the 
corium uniting posteriorly and forming a broad stripe down the cuneus. Head smooth ; the eyes large, 
round, and coarsely faceted in the male, small and finely faceted in the female ; antenna moderately long, 
joints 1 and 2 rather stout, 2 becoming much thicker towards the apex, 3 and 4 more slender, 2 more 
