56 
“Larval stages .—The newly hatched larva (fig. 10, c ) is pale yellow, 
with simply an orange stain on the middle of the three larger abdo¬ 
minal joints. The form scarcely differs from that of the mature bug, 
being but slightly more elongate ; but the tarsi have but two joints 
(fig. 10, d)and the head is relatively broader and more rounded, while 
the joints of the body are sub-equal, the prothoracic joint being but 
slightly longer than any of the rest. The red color soon pervades the 
whole body, except the first two abdominal joints, which remain yel¬ 
lowish, and the members, which remain pale. After the first moult 
(fig. 10, e ) the red is quite bright vermilion, contrasting strongly with 
the pale band across the middle of the body, the prothoracic joint [first 
behind the head] is relatively longer, and the metathoracic joint 
[third behind the head] shorter. The head and prothorax are dusky 
and coriaceous and two broad marks on the mesothorax [second joint 
behind the head,] two smaller ones on the metathorax, two on the 
fourth and fifth abdominal sutures, and one at the tip of the abdomen 
are generally visible, but sometimes obsolete ; the third and fourth 
joints of the antennae are dusky, but the legs are still pale. After 
the second moult [fig. 10,/] the head and thorax are quite dusky and 
the abdomen duller red, but the pale transverse band is still distinct; 
the wing pads become apparent, the members are more dusky, there 
is a dark red shade on the fourth and fifth abdominal joints, and ven- 
trally, a distinct circular dusky spot covering the last three joints. 
Papa. —[Fig. 10, g.] In the pupa all the coriaceous parts are brown- 
black, the wing-pads extend almost across the two pale abdominal 
joints, which are now more dingy, while the general color of the ab¬ 
domen is dingy gray; the body above is slightly pubescent, the mem¬ 
bers are colored as in the mature bug, the three-jointed tarsus is fore¬ 
shadowed, and the dark horny spots at the tip of the abdomen, both 
above and below, are larger.” 
The characters of the perfect insect are so fully given in the de¬ 
scriptions by Say and Dr. LeBaron, already quoted, that it is unneces¬ 
sary for me to repeat them here. I may add that the antennae, which 
are not described, are a little less than half the length of the body, 
composed of four joints, the last being the largest. Dr. Fitch has 
also pointed out the following varieties : 
“a, immargmatus. Basal margin of the thorax not edged with yel¬ 
lowish. Common. 
“ b , dimidiatus. Basal half of the thorax deep velvety black, ante¬ 
rior half grayish. Common. 
“ c, fulvivenoms. The stripes on the wing-covers yellow instead of 
black. 
“d, albivenosus. Wing-covers white, without any black marks ex¬ 
cept the marginal spot. A male. 
“ e, (pterus. Under or true wings wanting, wing-covers much short¬ 
er than the abdomen. 
“ /, basalis. Basal joint of the antennae dusky and darker than the 
second. 
“ g, nigricornis. First two joints of the antennae blackish. 
“ h, femoratus. Legs pale, livid yellow, the thighs tawny red. Com¬ 
mon. 
“ i, rufipedes. Legs dark tawny-red or reddish-brown.” 
