June, 1907.] 
American Species of Papirius. 
i 73 
11. Papirius Testudineatus Folsom. 
1896. Papirius testudineatus Folsom. 
Prevailing color, dark purple, almost black with conspicuous 
wax yellow patterns. Head large, face with large markings and 
a few short bristles; vertex with a few long bristles, and a stir¬ 
rup shaped marking in the middle; behind this a long, broken, 
transverse band. Antennae, .7 the length of body, purplish; 
basal segment twice as thick as second; second five times as long 
as first, somewhat petiolate with a few hairs; third equalling 
first two, slightly petiolate, gradually forming sub-segments dis- 
tally, the first seven of which are distinct, and the three distal 
ones much swollen, especially the penultimate one; terminal 
segment equal to basal in length; third and fourth segments wfith 
whorls of long hair. Eyes black. Body, abdomen ovate dor- 
sally, with a large pattern composed principally of thick median, 
longitudional and oblique bars; dorsum with a few long bristles 
anteriorly, many short ones posteriorly; sides with large, elongate 
spots; anal tubercle large, with several large spots, and many stiff 
bristles. Legs very long, slender, hairy, with broad, alternate 
bands of purple and yellow, except on the tibia. Superior claw 
long, of rather uniform width, bent only towards the tip, divided 
on the inside nearly into thirds by tw T o prominent teeth; inferior 
claw half as long, conical in shape, apparently prolonged into a 
bristle; a short bristle on inside of inferior claw at its base. 
Furcula long, nearly reaching mouth, purplish; each dentes 
with a row of long spines on either side; mucrones white, cylin¬ 
drical ; apex rounded, one-third the length of dentes, serrated 
beneath. Length 2.2 mm. 
The description was taken from four specimens which were 
deposited by Mr. Folsom in the Cambridge Museum of Com¬ 
parative Zoology. 
12. Papirius vittatus Folsom. 
1896. Papirius vittatus Folsom. 
Prevailing color, young specimens dark purple above with 
pearly markings, lavender or lilac beneath; older ones maroon to 
almost black above, sides mottled with several shades of purple 
and brown. Head free, purple with a broad transverse band 
across the front, oral region whitish, vertex with a distinct white 
sagittal mark from antennae to pro-thorax; black ocelli-like 
effect on the middle of the vertex; a few short bristles upon the 
vertex in front. Antennae longer than the body, except in large 
individuals,; segments variable in relative length, but approxi¬ 
mately in the ratio of 1:6:7:1.5, or 1:7:9:2; basal segment short, 
as long as broad, brownish with short white bristles, the remain¬ 
der of the segments sparsely haired, the third with five to seven 
sub-segments with whorls of hairs. Eyes dark, close behind the 
