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Genus Panoplites. 
£. Palpi clothed with scattered white, brown, metallic 
purple and creamy scales, extremities white, penultimate joint 
with a dense tuft of deep brown hairs on one side, last joint also 
with long dark hairs, also a white band on the basal half; 
antennae dark yellowish-brown, with dark brown verticils. 
Abdomen apically banded with white scales, rest of the segments 
covered with brown scales, which are brilliant mauve in some 
lights; basal segment scantily scaled, with a central patch of 
white scales and with long chestnut-brown hairs, basal joints of 
genitalia with yellowish-brown scales, hairy laterally. Ungues 
of fore and mid legs unequal, the larger uniserrated. 
Length .—5 mm. 
Habitat .—Rio de Janeiro (Lutz) (4. 7. 1899, and Senhor 
Carlos Moreira) (9. 12. 1899), New Amsterdam, British Guiana 
(Rowland) (4. 4. 1899). 
Time of capture. —In November in Brazil, according to 
Senhor Carlos Moreira; March in New Amsterdam (March 13). 
Observations. —This is a fairly large and conspicuous mosquito, 
which seems to be common in South America. Dr. Lutz calls it the 
“ River-Side” mosquito. Arribalzaga, in his work on Argentine 
Diptera, places this species in his new genus Taeniorhynchus , 
which I now retain for another of his species in the same genus, 
T. fasciolatus (Arri.). It is subject to considerable minute 
variation. Those sent by Moreira seemed to have the “ border 
scales ” very slightly more rounded at the apex than those sent 
by Dr. Lutz. Specimens received from New Amsterdam, sent 
by Dr. Rowland, have more white abdominal scales than the 
Brazilian specimens, but, on the other hand, they have none on 
the apex of the palpi. One specimen sent me by Dr. Lutz is 
quite black, with white scales. 
This species can easily be told from other members of the 
genus, except P. pseudotitillans, by its larger size and by the 
absence of banding on the femora and tibiae. Some of the 
specimens sent from New Amsterdam were taken in houses. 
Dr. Lutz, however, writes me that “ it seems limited to river 
sides and swamps fed by running water; it is generally abun¬ 
dant where it is found at all, bites also in the daytime, and its 
bite is one of the most painful. Its saliva is distinctly acid.” 
In another letter he tells me it follows the course of the larger 
rivers of the interior, but it is also found in swamps along the 
littoral. 
Arribalzaga says this species “ is very variable in size and 
VOL. II. N 
