H EM IPTEBA IlETEROPTERA. 
133 
33. ISCHNODEMUS SULCATUS. 
Mas. Niger , longissimus , hirsutus , fere cylindricus ; rostrum coxas 
anlicas atlingens ; antennae brevissimee, arliculo 1 o fulvo ; prothorax 
sulco longitudinali bene determinate; pedes fulvi, breves, femoribus 
quatuor posterioribus incrassatis, femoribus anticis valde incrassatis 
subtus dentatis, libiis tarsisque anticis brevissimis his clavatis sublus 
dentatis. 
Male. Black, smooth, shining, hirsute, very long and narrow, nearly 
cylindrical. Head small, conical, narrower than the fore border of the 
prothorax; middle lobe prominent. Eyes slightly prominent. Rostrum 
extending to the fore coxae. Antennae rather stout, about one-sixth of the 
length of the body; first joint tawny; second about half the length of the 
first; third as long as the second; fourth elongate-fusiform, longer than 
the first. Prothorax elongated, narrower in front, with a strongly-marked 
longitudinal furrow. Legs tawny; four posterior legs short, with incrassated 
femora; middle legs much shorter than the hind legs; fore femora 
extremely incrassated, dentate beneath ; fore tibiae clavate, dentate beneath, 
very short, as are also the fore tarsi. Wings extending nearly to the tip of 
abdomen. Length of the body 4} lines. 
a. Mount Ophir. Presented by W. W. Saunders, Esq. 
34. ISCHNODEMUS TALPA. 
Mas. Niger, planus, linearis; caput conicum, minimum; rostrum coxas 
intermedins attingens ; antennae brevissimee ; prothorax brevis, 
transverse subsulcatus, lateribus rolundalis ; pedes breviusculi, 
femoribus quatuor posterioribus subincrassatis, femoribus anticis 
valde incrassatis subtus spinulosis et forliter unispinosis, libiis anticis 
subarcuatis apice bicatcaralis, tarsis anticis brevissimis ; corium 
ferrugineum ; membrana apice albida. 
Male. Black, fiat, linear, smooth, shining. Head conical, very 
small, narrower than the fore border of the prothorax. Eyes slightly 
prominent. Rostrum extending to the middle coxae. Antennae rather 
stout, a little less than one- fourth of the length of the body; second joint 
about half the length of the first; third much shorter than the second; 
fourth longer than the second. Prolhorax transverse, thinly punctured, 
rounded on each side and much narrower towards the fore border, with a 
very slight transverse middle furrow. Legs rather short; four posterior 
femora slightly incrassated ; fore femora extremely incrassated, with a stout 
curved spine and with some smaller spines beneath ; fore tibiae stout, 
slightly curved, with two apical spurs; fore tarsi very short. Wings 
extending to the tip of the abdomen. Corium of the fore wings ferru- 
ginous ; membrane whitish at the tip. Length of the body lines. 
The fore legs of this species are fossorial, but less so than those of 
I. sulcatus. 
a. Mount Ophir. Presented by W. W. Saunders, Esq. 
