iD) 
The Elis larva is entirely white, including the head, the body shining 
and semitransparent. Aftér completing its growth it commences at 
once to spin its cocoon, within which it remains over winter as such, 
pupating the following spring. The first egg observed was laid between 
2:00 p. m., July 23, and 10:45 a. m., July 25, the date of oviposition 
probably being July 24. The grub bearing this egg was placed in a one- 
ounce tin box, and the egg hatched previaus to 3:00 p. m. July 27, by 
which time the Elis larva was 6.7 mm. in length and 2.5 mm. in width 
(Pl. V, Fig. 14); at 10:00 a. m. July 28 it was 13.1 mm. long and 5.2 
mm. wide (PI. V, Fig. 15); at 6:00 p. m. July 30, 19 mm. long, and at 
10:00 a. m. July 31, 21 mm. long (Pl. V, Fig. 16, 17). By this time 
the larva had nearly consumed the grub, finishing it by 5:30 p. m. July 
31, when it measured 24 mm. in length.” At 6:00 p. m. July 31, it had 
commenced to spin its cocoon, which it completed by 10:00 a. m. August 
2. The larva died within the cocoon. In another case two paralyzed 
grubs were found in the cage at 2:30 p. m. July 23, each bearing an 
Elis larva on the under side of the body, one of which measured 7.6 mm. 
in length and the other 10.5 mm. The dates of egg-laying and hatching 
were not obtained. The larger one finished feeding and started its 
Fic. 12. Elis 5-cincta Fabr., egg on un- 
der side of 6th and 7th abdom- 
inal segments of white-grub. 
cocoon by noon July 26, and completed the cocoon previous to 5:00 p. 
m. July 28. From this an adult male Elis 5-cincta issued July 17, 1915, 
almost a year after the egg was laid. The smaller larva had nearly 
devoured the grub at noon of July 26, and by 10:00 a. m. July 27 it had 
begun the framework of its cocoon, which it completed by 5:00 p. m. 
July 28. An adult male Elis 5-cincta issued from this cocoon a year 
later, July 8, 1915. 
Our field observations corroborate the results obtained in cages, 
and they further indicate the months of July and August as the ones 
during which the adults are actively ovipositing. At Mt. Vernon, Ind., 
on August 28, 1916, recently made cocoons, larvae in act of spinning 
cocoons, and recently hatched larvae were obtained in one field. From 
cocoons collected by R. J. Kewley, D. G. Tower, and the writer, at 
