1870.] 3 
birds congregating before their departure, but their actual migration is 
rarely, or never, witnessed by any one. In the same manner, insects 
of migratory habits, may, perhaps, sometimes seek a very elevated 
stratum of air in which to wing their way to “ pastures new,”’ and they 
may thus be carried above intervening clouds to great distances over 
the ocean, until exhaustion brings them down as food for fishes. 
Kirby and Spence mention the destruction of enormous flights of 
locusts by drowning off the coasts of Africa, where the dead bodies 
have been washed up in such quantities as to form banks upon the 
shores several feet in depth. They also state that, on one occasion, a 
flight of locusts surrounded a ship when 200 miles from the Canary 
Isles, and that these insects showed no sign of exhaustion. 
The first occurrence of Acridium peregrinum in this extreme western 
part of Europe appears to me to be a noteworthy fact; and I crave a 
little space in your Magazine to record it, for the benefit of future 
chroniclers. £2. migratoria has frequently been captured in this neigh- 
bourhood, but we have had no means of ascertaining whether it has 
been bred in the country, or has reached us by immigration. There 
ean, however, be no doubt but that A. peregrinum reached us last 
autumn by actual flight, and by a route probably of many hundreds 
of miles in length. 
Burton-on-Trent, May, 1870. 
DESCRIPTIONS OF FIVE NEW SPECIES OF DIURNAL LEPIDOPTERA 
FROM CHONTALES, NICARAGUA, anp or ONE FROM MINAS GERAES. 
BY W. C. HEWITSON, F.L.S. 
Necyria BELTIANA, 7. s. 
Upper-side. Male; blue-black, crossed from the costal margin be- 
yond the middle to the anal angle by a curved band of green-blue, 
divided by the nervures into spots as it approaches the anal angle, 
where it becomes narrow, and intersected between the nervures by lines 
of white; the fringe at the apex (which is pointed) and at the anal 
angle white. Posterior wing with a broad band of green-blue on the 
outer margin, divided by the nervures into pyramidal spots, each of 
which is traversed longitudinally by a line of white; the margin black ; 
the fringe white. 
Under-side as above, except that the anterior wing has the band 
much broader and greener ; that the costal margin from the base to the 
