84 HEMIPTERA-HETEROPTERA. 
6. Pictinus parviceps, n. sp. (Tab. VI. fig. 7, ¢, head and part of the 
pronotum.) 
¢. Subparallel, rather narrow, nigro-piceous, the base of the femora, the connexivum, and under surface 
obscure ferruginous. Head transversely suborbicular, small, granulate ; the post-ocular portions rounded, 
unarmed; the spiniform antenniferous processes slightly divergent; the apical process short, subconical, 
‘unemarginate at the tip; antenne short, joint 1 extending to about two-thirds beyond the apical process 
of the head, 2 a little shorter than 1, 3 nearly one-half longer than 2, 4 slightly shorter than 3, piriform, 
pilose at the tip. Pronotum transverse, subtruncate at the base and apex, granulate, sinuate at the sides 
before the middle, and narrowed in front; the anterior portion short and depressed, with rather prominent 
rounded anterior angles, the disc hollowed in the middle; the posterior portion parallel behind and 
rounded at the sides in front. Scutellum obsoletely carinate down the middle. Corium parallel at the 
base and of the same width as the pronotum, extending to a little beyond the first segment, the nervures 
granulate. Abdomen subparallel, gradually rounded at the sides posteriorly, the sixth segment truncate 
at the apex, the outer apical angles of the fifth and sixth segments slightly projecting; the genital lobes 
rather narrow ; the spiracles very small, the apical ones only visible from above. 
Length 3%, breadth 1; millim. 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. Differs from P. breviceps in the small head, dark legs and antennae, 
obsoletely carinate scutellum, and narrow, subparallel general shape. 
NANNIUM. 
Nannium, Bergroth, Ent. Monthly Mag. xxxiv. p. (1898) (part.). 
Head transverse, with spiniform antenniferous processes and an apical feebly emarginate process about reaching 
the middle of the basal joint of the antenne, the post-ocular portions rounded or terminating laterally in 
a very short spine; antennee with joints 1 and 2 stout or moderately stout, granulate, 3 longer and more 
slender, 4 piriform and pilose at the tip; rostrum short, reaching the base of the head. Pronotum 
transverse, subtruncate at the base and apex, the base slightly emarginate in the middle; the antericr 
portion short, very much narrower than the posterior portion, depressed, with two tubercles on the disc 
and outwardly directed, projecting, lobiform anterior angles, the anterior margin with an oblique tooth 
on each side below; the posterior portion rounded at the sides anteriorly, and with an undulate transverse 
ridge on the disc. Scutellum triangular, carinate down the middle. Abdomen moderately long, 
subparallel or feebly rounded at the sides, the apical margins of the connexival segments somewhat 
prominent. Corium reaching as far as the middle or apex of the second segment, raised above the 
membrane, more or less arcuate-emarginate within, the apex obtuse, the median nervure prominent. 
Membrane with a few distinct nervures. Intermediate coxee more widely separated than the hind 
coxee ; intercoxal portion of the meso- and metasternum broadly flattened. Venter convex, the fifth 
segment unisinuate at the apex in the female, the spiracles placed near the lateral margin. Mesosternal 
orifice prominent, surrounded by a raised carina. Legs short, slender, the femora moderately stout 
and finely granulate. 
Two very small species are referred to this genus, which has the genera! facies of 
Pictinus ; but differs from it in having the corium more raised, longer, and emarginate 
within, the membrane with some regular raised nervures, the pronotum distinctly 
toothed on each side at the apex below, and with two prominent tubercles on the 
anterior portion, and a transverse undulate ridge on the posterior portion. The 
position of the spiracles, the more feeble neuration of the membrane, and the form 
of the pronotum separate it from Brachyrrhynchus. 
Dr. Bergroth bases this genus chiefly upon the position of the spiracles, and includes 
