Article beginning on page 57.
Psyche 14:57, 1907.
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19071
GZRAULT AND ROSENFELD - LEPTZNOTARSA DEUEMUWATA times, and twice on the day following.
Then again on May 23rd, and then once
daily from May 26th to May 30th, inclusive. The act is normal for the Coleoptera.
Length of life cycle. The lengths of the different stages have already been tabu- lated. Taking the averages from these and combining them we get the average length of the life cycle, as follows: -
Length of the egg stage -
4 days, 23 hours
Length combined larval instars -
11 days, 6 hours.
Length time in soil -
11 days, 7 hours.
Average length of life cycle,
28 days.
Number of Generations in Georgia.
Unfortunately we were unable to gather
any definite data bearing on this, but our observations lead us to believe that there are at least three full generations of this insect in this locality of Georgia. This statement is made with qualification.
Natural enemies.
During late May, an adult of Sinea diadema Fabricius was captured with a larva of instar 111 impaled on its beak. The body of the larva was
partly collapsed.
In confinement, this same individual Sinea destroyed several other larvae in different instars. We are indebted to Mr. Otto Heidemann, United States National Museum, for the determination of this insect. No true insect parasites were met with.
LITERATURE REFERRED TO.
1903.
Tower, W. L. The development of the colors and color patterns of Cole- optera, etc.
Decennial publications, University of Chicago, X, 40 pp., 3 pis. These notes are published through the kindness of Dr. L. 0. Howard, chief of the Bureau of Entomology, U. S. Department of Agriculture. PODISMA AUSTRALIS NOM. NOV.
Strict rules of nomenclature seem to require a different name for the species described (Psyche, xiii, p. 120, 1906) as Podisma acudderi, in consequence of the fact that Melanoplus scudderi was once referred to this genus (Walker, Cat. Derm. Salt. Brit. Mus., iv, 718).
A. P. MORSE.
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