Memoirs of the National Academy of Sciences . on \ Pig. 71.—Pupa (»f Sinninerista albi/rous; anl,anal legs; cr, creniastcr .sbarp-tootbed form).. -Pupa of Sitmmirintd tdbifrons. 9. I lieuteiuniiller desvriljes six stai^es. 182 MEMOIRS OF THE NATIONAL A(AI)E:MY OF SCIENCES. wing the IStli of Febiuaiy. Others spun on the 29tli of March, and came out on tlie 2(1 of wliole brood feeds together, especially when small. Mr. -lames Fletcher re])orts that in 188-4 the caterpillars iippeaied in great numbers and weremost uiinrious to botli oaks and nm])les at Ottawa, Canada. (Kep., 32.) It IS co
Memoirs of the National Academy of Sciences . on \ Pig. 71.—Pupa (»f Sinninerista albi/rous; anl,anal legs; cr, creniastcr .sbarp-tootbed form).. -Pupa of Sitmmirintd tdbifrons. 9. I lieuteiuniiller desvriljes six stai^es. 182 MEMOIRS OF THE NATIONAL A(AI)E:MY OF SCIENCES. wing the IStli of Febiuaiy. Others spun on the 29tli of March, and came out on tlie 2(1 of wliole brood feeds together, especially when small. Mr. -lames Fletcher re])orts that in 188-4 the caterpillars iippeaied in great numbers and weremost uiinrious to botli oaks and nm])les at Ottawa, Canada. (Kep., 32.) It IS common on white oaks in Kliode Island and ilaine late in August and through September,those observed at Providence spinning a thin cocoon between the leaves early in October and untilOctober 20-28. October 5 I found some small larva (i)rol)ably next to the last stiige) witli thestripes straw-yellow instead of orange. The moth appears in June in the northern States. Mr. Beutenmiiller publishes the following notes ou its transformations: The eggs from wliiclimy observations were nmde were laid on June 10, and the young larva- emerged 071 .July
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