REDUVIUS. INSECTS. 321 



head received posteriorly into a short transverse thorax ; an- 

 tennae inserted before the eyes, a little longer than the head 

 and thorax, setaceous, of four joints, of which the second and 

 third are very large. 



C. lectularius, Lin. The Bug. Body ferruginous,, with short hair. 



Inhabits Europe, in houses. Shaw, vi. 161. 



This insect is too well known in many places, and various means have been pro- 

 posed for its expulsion from furniture and houses. The oil of turpentine is the 

 most efficacious. 



TRIBE III. NUDICOLLES. 



Rostrum free and always arched ; head abruptly narrowed at its 

 base like a neck. 



Gen. HOLOPTILUS, REDUVIUS, PETALOCHEIRUS, NABIS,ZELUS, PLOIARIA. 

 Gen. REDUVIUS, Fab. Lat. Cimex, Lin. 



Rostrum conical, arched, of three joints, of which the second is 

 longest ; tarsi with three joints ; antennae setaceous, with four 

 joints inserted below a line drawn from the eyes to the origin 

 of the labrum ; body oval ; head oval, narrowed posteriorly ; 

 thorax appearing as if bilobed. 



R. personatus, Lat. Blackish brown ; head small, and the rostrum 

 thick and short ; antennae as long as the body ; abdomen concave 

 above, convex below ; elytra crossed over the abdomen. Inha- 

 bits Europe, in houses. Nouv. Diet. xxix. 113. 



TRIBE IV. OCULAT.E. 



Rostrum free and generally straight ; head not narrowed pos- 

 teriorly ; eyes large ; labrum projecting. 



This tribe is similar to the preceding in the small number of joints in the sucker. 

 They frequent marshy places. 



Gen. LEPTOPUS, ACANTHIA, (Salda, Fab.) PELOGONUS. 



Gen. LEPTOPUS, Lat. 



Antennae setaceous ; rostrum short, arched, and spinous below ; 

 anterior thighs large and spinous. 



L. littoralis, Lat. Body oval, obscure cinereous, with some spots on 

 the elytra, and their exterior border whitish ; membranous appen- 

 dages of the elytra pale, with the nerves obscure ; feet yellowish. 

 2 lines long. Inhabits Spain. Nouv. Diet. xvii. 486. 



TRIBE V. PLOTERES. 



Four posterior feet inserted on the sides of the breast, widely 

 separated, long, slender, and proper for walking on the ground 

 or water ; hooks of the tarsi very small, and placed in a la- 

 teral fissure at the end of the tarsi ; body furnished with a 

 very fine and silky down. 

 Gen. HYDROMETRA, (Emesa, Fallen ;) GERRIS, VELIA. 



Gen. HYDROMETRA, Lat. Cimex, Lin. 

 Anterior feet short, and similar to the others ; body filiform, 



VOL. II. X 



