1907] GIRAULT AXD ROSENFELl) — LEPTIXOTARSA DECEMLIXEATA 
55 
impressed, with lori<; scattered setae which are not present on the vertex, except 
laterally. Surface of the eye punctate. 'I'lie larfj(' distal joint of the maxillary 
pal|)i is visible, and also the ti])S of the distal joint of the labial |)alpi. Kaeh mandible 
bears at its extremity an acutely conical process, fleshy like a nipple. The maxil- 
lary ]>al|)i reach the tarsi of the first i)air of h'gs. 
I,e<;s eom})aet, the first and intermediate pairs with their femora contiguous. 
'I'lie tarsi of the first pair are aj)plied to the ba.se of the tarsi of the intermediate pair. 
'I'lie tarsi of the |)osterior pair project from beneath the elytra; the tijis of the tarsi 
of the intermediate |iair, which run parallel to the elytra, are applied to the tarsi of 
the posterior jiair. Setae on legs sjiarse, mo.stly on knees and tarsi. Ventum of 
abdomen mo.stly concealed, a portion of the disk visible. 
E.vtcnuil dcrrlopinnit. There are no marked color changes in the jnipa during 
the period just previous to exclusion to the adult. Following pupation, the colors 
are brighter, and the markings more or less faded, but this is not particularly striking. 
Duration of Instar. 
I. Actual Duration. 'I'he table which follows gives the actual length of the 
pupal instar, obtained by allowing larvae to jmpate in vials without soil; in three 
ca.ses, reconls were obtained by observations on larvae which had pupated at the 
sides of glass jars filled with soil, and these in nowise differed from the other records. 
ran^in^ 
from six to eight days. 
Pile actual ])upal instar and the 
time .spent in the 
soil are 
very different in duration. 
and hence should be considered 
apart. 
Table II 
'. .Irtual Pupal In.stars. 
I.c 
No. 
Pupated 
E.xdiided 
days 
Iirs. 
1 . 
5 P. M., .May 25th. 
0 .V. M., June 1st. 
5 
i:i. 
o 
() P. M., .May 2(lth. 
7 .^. M., June 1st. 
.5 
1 1 . 
;j. 
10 .V. M., .June lOlh. 
4 P. M., June Kith. 
0 
(>. 
4. 
10 .\. .M., June 10th. 
Noon, June 18th. 
8 
2 
5. 
7 P. M., June bSth. 
2 P. M., June 25th. 
0 
19. 
(i. 
11 P. i\I., June Kith. 
Noon, June 2Jnl. 
i:?. 
7. 
11 P. M., .lune 10th. 
11 A. M., June 2.5th. 
5 
12. 
S. 
Noon, July 4th. 
10 A. M., July 9th. 
4 
22. 
Sums. 
46 
5 
Avenige. 
5 
19 
Lnujth of time in Soil. 
Records of this are tabulated, for convenience of 
comparison with the table just i)re.sented. 
