92 HEMIPTERA-HETEROPTERA. 
more or less elongate, and the corium extending to about as far as the middle of the 
second segment, it being sometimes emarginate within (B. handlirschi). The apical 
joint of the antenne is piriform (B. leviventris), ovate (B. maculiventris), or oblong- 
ovate (B. emarginatus), sometimes longer than the second (4. nanus). The rostrum is 
short, but in two of the new species described (B. leviventris and B. sinuatus) it 
reaches the front of the prosternum; the rostral groove is sometimes narrowed and 
closed behind (B. handlirschi). The spiracles vary a little in position according to the 
species, irrespective of the width of the connexivum. 
The Central-American species may be tabulated thus :— 
a. Pronotum rather deeply emarginate at the base, the anterior lobe with 
two yellowish tubercles in the middle behind; scutellum with a 
yellowish tubercle at each basal angle; antennze comparatively 
slender, with a piriform apical joint ; rostrum not extending beyond 
the base of the head . .. . . . abdominalis, Stal. 
6. Pronotum feebly emarginate at the base, the anterior lobe and scutellum 
without yellowish tubercles. 
a’. Antennz moderately long, comparatively slender, usually with a more 
or less piriform apical joint (ovate in B. maculiventris). 
a’, Rostrum reaching the front of the prosternum. 
a’, Corium emarginate within; venter smooth and shining . . . Jeviventris, n. sp. 
b’’, Corium unemarginate within; venter dull and rugulose . . . sinuatus, n. sp. 
6”. Rostrum shorter, not extending beyond the base of the head. 
ce’, Body incrustate above and beneath, subglabrous ; corium 
emarginate within; antenniferous processes abbreviated in 
front. . . . handlirschi, Berg. 
a’, Body incrustate beneath, clothed with very short hairs above ; ; 
corium unemarginate within . . . . - « . . « lobatus, Say. 
e’’. Body not (or at most here and there beneath) inerustate corium 
unemarginate within. 
a’, Body, antennz, and legs clothed with rather long and very 
fine projecting hairs .. . . 278 . - . longipilis, n. sp. 
b*. Body clothed with very short, curled, decumbent hairs (some- 
times very minute or abraded) ; legs and antennz shortly 
or indistinctly pubescent *. 
a’, Pronotum strongly constricted at the sides, the anterior 
lobes projecting in front. 
a’. Posterior portion of the pronotum subangularly dilated at. 
the sides anteriorly ; connexivum spotted. . . . . maculventris, n. sp. 
6°. Posterior portion of the pronotum rounded at the sides 
anteriorly ; connexivum not spotted. . . . . . . constrietus, n. sp. 
* B. punctiventris, Stal, B. granuliger, Stal, B. granulatus (Say), and B. obscurus (Dist.) belong to 
this section. 
