162 
Michigan, by Mr. C. M. Weed. Again August 1, all stages were 
found by Mr. Garman at Cobden and larv* and imdgos were also 
collected at Anna on the 10th, and sent me by Mr. Earle. On the 
11 th the larvae and pupae were less common than before, but the 
beetles were more abundant on the leaves. Many of the latter were 
also concealed in the mulching, and several were taken from cave 
ties in the earth. • „ . _ , , 1 , 
Some of the larvae and pupae sent from Cobden August 1st were 
kept in earth at the Laboratory (after a careful study of the living 
specimens for subsequent identification) until they transformed, the 
fost beetle emerging on the 11th. On the 24th the earth was ex. 
amined, and three more adults were found. . 1 
These were the last immature examples seen, scattering adults 
only occurring in our collections during September, October and 
November. , ,, 
December 8, adults were taken at Cobden m abundance on the 
ground under the mulching, and under leaves and rubbish in 
unmulched fields. _ 
Tabulating these data, we get the following exhibit:_ 
Date. 
Imago. 
Larva. 
Pupa. 
Centralia... 
Cobden- 
Villa Ridge. 
April 10. 
“ 13. 
“ 17. 
Hay 18. 
June 15. 
July 20. 
“ 26. 
August 1...Cobden 
• * io .Anna. 
“ ii .Emerging — 
<* 24 .! 4 ‘ - 
September lb.jCobden . 
“ 13. 
Anna (in ground)... 
Cobden. 
Michigan . 
October 1- 
November 11. 
December 8 .. 
Normal .... 
Villa Ridge. 
Cobden .... 
Cobden .. 
Michigan 
Cobden .. 
Anna- 
Cobden . 
Michigan . 
Cobden . 
1 
Evidently, here we get no glimpse of a second brood, either early 
or late, but we find the beetles hibernating as mature insects, lay¬ 
ing their eggs in the ground in June (if we may give this interpre¬ 
tation to Mr. Butler’s observation of June 15), and appearing as 
adult beetles again late in July and m August. That an early 
brood actually occurs is rendered further very doubtful, by the act 
that large collections of root-worms were made for me by an assistan , 
April 18, in the very fields at Cobden m which Pana larvae were 
most abundant in July and August, but that every one o . 6 
April larvae was Scelodonta. If it be said that the possibility 
distinguishing the larvae of these two genera is doubtfu , an 
Ihe supposed Scelodonta larvae just mentioned may rea y 
belonged to a spring brood of Paria, the reply must be th 1 
agreed not only in characters, but also m size and stage of adv 
ment, with other larvae taken at the same time, and afterward, 
to Scelodonta,—a fact totally inconsistent with the supposition tna 
the former were Paria, since the periods of the two genera aie qu 
dissimilar, Scelodonta unquestionably hibernating almost exclusive!) 
as a mature larva, and Paria as a beetle. 
\i 
/ 
