THE ENTOMOLOGISTS 
WEEKLY INTELLIGENCER. 
No. 246.] SATUEDAY, JUNE 22, 1861. [Price Id. 
HINTS FOE OBSERVERS. 
We last week commenced the series 
of sixty-one questions propounded to 
Transatlantic entomologists by the 
Smithsonian Institution, in reference 
to the history of North-American grass- 
hoppers, and we left off at the thirtieth 
question, “ What is the appearance of 
the pupa?” We now proceed with 
the remaining thirty-one questions. 
31. Does it change its skin? 
32. When and how often does it 
moult? 
33. Does it ever feed while moulting ? 
34. Does it change its food after 
moulting ? 
35. What changes take place in its 
habits or manners ? 
36. What remarkable appearance does 
it ever present ? 
37. When does it become full winged? 
38. Does it ever moult after becoming 
full winged ? 
39. What changes in habits or man- 
ners then occur ? 
40. What comparative difference is 
there in the size of the sexes ? 
41. When does the male unite with 
the female?, 
42. What is the length of time re- 
quired for the act? 
43. What peculiarities are observed 
at this time ? 
44. How much time elapses between 
the act and the laying of the eggs? 
45. How long does the male live after 
the act ? * 
46. How long does the female live 
after laying the eggs ? 
47. Does the female ever make a 
noise, and how ? 
48. How does the male produce his 
note? 
49. At what time is he most noisy ? 
50. What variations of instinct have 
been remarked in either sex ? 
51. What condition of the atmosphere 
seems most favourable for their in- 
crease ? 
52. What other physical conditions 
favour them ? 
53. What physical conditions are most 
unfavourable to them? 
54. What physical or other conditions 
cause them to migrate ? 
55. How far has their migratory flight 
been known to extend ? 
56. What times do they prefer for 
migrating ? 
57. What vegetable and other sub- 
stances are repugnant to them ? 
58. Do odours of any kind affect them 
in any particular way ? 
59. Through how extended a district 
have their ravages been noticed ? 
60. What remedies have been used to 
prevent their ravages? 
61. How far has each remedy been 
successful ? 
N 
