Part V.] Beeson : Larvae and Life Histories of Brionine Beetles. 11 
The larva in form and coloring agrees very closely with plagiata. 
Nearly all the characters detailed above are apparently generic, but the 
following slight differences occur in crenata. 
( a ) a small tubercle on the epistoma near the inner termination of 
the postcondylar carina. 
(3) the subfossal process in the form of a prominent sharp tubercle, 
much larger than that of plagiata. 
If) the tentorium shorter than the extreme length of the anterior 
foramen. 
Breadth of head 10 mm.; length 10’5 mm.; length of larva 76 mm.; 
breadth of thorax 16 mm. 
3. The Pupa. 
[ See Plate I, Fig. 7.] 
General shape as in Pig. 7. 
Technical description. Bronotum formed as in adult but the 
margins are entire, not revealing the denticulations within; the posterior 
angles are acute; depressed areas occur on the disc corresponding to the 
imaginal markings. 
Antennae with 3rd joint equal in length to the 4th, 5th, and half 
the 6th united, as in the adult. 
Abdomen. Tergites adorned with numerous minute teeth; 5th 
segment with a median pair of carinate projections on the anterior and 
posterior margins; these processes are deeply concave on the lower surface 
and are formed by a pinching out and chitinisation of the pupal skin ; 
similar paiied processes occur on the posterior margin of the 4th segment 
and the anterior margin of the 6th segment ; rudimentary teeth occur on 
the contiguous borders of the 3rd and 4th segments and the posterior 
border of the 6th segment. The projections on the anterior borders are 
directed anteriorly and those on the posterior borders, posteriorly, and 
apparently articulate with one another. 
Length. 49 mm. one S specimen. Tube No. 13. 
Notes on the Life History. 
Larvae were taken in a dead, tinder-dry tree of Bombax malabaricum 
(S. T. 32) at Pathri Saharanpur Division, U. P., on 12-XII-17. The 
tree also contained numerous larvae of Batocera sp. A log was installed 
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