100 CATALOGUE OF 
tibie and tarsi tawny, the former with spines on each side. Wings 
extending to the tip of the abdomen. Corium of the fore wings with the 
veins mostly testaceous, a few points of the same hue near the tip; 
membrane brownish cinereous, with a transverse vein and with seven 
areolets. Hind wings pellucid. Length of the body 33 lines. 
In form it has a resemblance to R. Rolandri, but the veins of the 
membrane have a peculiar structure. 
a. Siam. Presented by W. W. Saunders, Esq. 
158. RuypaRrocHROMUS INCISUS. “% 2 
Mas. Niger, fere linearis; caput antice rotundatum; rostrum coxas 
intermedias fere attingens ; antenne corpore breviores, articulo 1o 
luteo ; prothorax convexus, sulco transverso medio valde determinato ; 
pedes longi, tibiis intermediis tarsisque fulvis, femoribus anticis apice 
fulvis ; corii costa albo bimaculata. 
Male. Black, convex, shining, nearly linear, very finely punctured. 
Head rounded in front, broader than the fore border of the prothorax. Eyes 
rather prominent. Rostrum extending nearly to the middle coxe. Antenne 
slender, rather shorter than the body; first joint luteous, much shorter than 
the head; second very much longer than the first; third shorter than the 
second; fourth a little longer than the second. Prothorax binodose, or 
with a very deeply-marked transverse furrow which is behind the middle. 
Legs long, slender; tarsi and middle tibiw tawny; fore femora incrassated, 
armed with spines beneath, tawny at the tips. Wings not extending to the 
lip of the abdomen. Corium of the fore wings with two large triangular 
costal white spots, one near the base, the other near the tip. Length of the 
body 3 lines. 
This and the three following species belong to the group Beosus. 
a. Ceylon. Presented by Dr. Thwaites. 
159. RuypAROCHROMUS ANTICUS. 
Fem. Fuscus; caput elongatum; prothorax longiusculus, sulco 
medio transverso indeterminato, lateribus albis subreflexis postice 
fuscis; pedes pallide flavi, longi, graciles, femoribus nigris basi 
albis, femoribus anticis subinerassatis subtus denticulatis ; corium 
bast cervinum, macula costali apicali alba. Var. B.—Antennarum 
articult 2us et 3us basi albi apice nigri, 4us niger dimidio basali 
albo. Var. y.—Antennarum articuli 2us et 3us nigri basi albi. 
Female. Brown, in structure like R. armipes. Head elongate, 
triangular. Eyes slightly prominent. Rostrum extending to the middle 
coxe. Antenne testaceous; first joint rather shorter than the head; 
second about twice the length of the first; third rather shorter than the 
second; fourth as long as the third. Prothorax elongate, widening from 
the fore border to the hind border; a slight transverse middle furrow; sides 
slightly reflexed, white except towards the hind border. Legs pale yellow, 
long, slender; femora black, white towards the base; fore femora slightly 
incrassated, denticulate beneath. Wings extending to the tip of the abdo- 
men. Corium of the fore wings fawn-colour towards the base ; a somewhat 
