22 THE ZOOLOGIST. 



'Mareschal Pelissier,' sugar ship, and I now imagine it was the 

 pink variety of the Schistocerca tartarica, of which Dr. Long- 

 staff has kindly presented me with a specimen. Stray locusts or 

 little flocks have come to the coast of Britain in 592, 874, 895, 

 1031, 1693, 1748, 1797, 1809, 1843, between 1846 and 1849, 

 between 1857 and 1864, in 1868 and 1869, 1874 and 1876, and 

 again in 1880. Commonly they have been the " migratory 

 locust," but in 1869 tartarica arrived. These, however, were 

 merely the scouts of great troops which have periodically 

 deployed northward over Europe about the years 183, 475, 558, 

 593, 840, 852, 866, 874, 886, 1031, 1086, 1091, 1336, 1354, 

 1363, 1368, 1374, 1475, 1527, 1536, 1542, 1547, 1648, 1684, 

 1689, 1693, 1712, 1728, 1741, 1748, 1803, 1811, 1828, 1837, 

 1842, 1846, 1860, and 1869. Unless it be their large eyes and 

 tinsel glitter, I do not know the incentive that caused the " four- 

 spotted dragon-flies " {Lihellida quadrwiaculata) to assemble in 

 bands and defile from the polders of Holland, or to set forth on 

 a pilgrimage from the reedy source of the Elbe, Saal, Weser, or 

 Abi in or about 1091, 1143, 1494, 1586, 1623, 1659, 1673, 1681, 

 1740, 1744, 1746, 1761, 1775, 1779, 1816, 1832, 1839, 1855, 

 and 1867. On July 9th, 1908, following the recurring heat- 

 waves that came with May, and, as seemed to me, when the 

 spotted side of the sun rolled towards the earth, a swarm 

 arrived in the island of Alderney from the French coast. On 

 Sept. 4th, 1890, a flight of Msclina eremita was noticed in 

 Wisconsin, in North America. A general spread of moths and 

 butterflies northward over Europe took place in or about 1727, 

 1734, 1748, 1789, and 1790 ; in 1803 and 1804, 1811, 1816 to 

 1819, 1825 and 1826, 1831 to 1833, 1835 to 1837, in 1839, 

 1842, 1846 to 1852, in 1855, 1857 to 1860, in 1865, 1867 and 

 1868, 1870 to 1872, 1875 to 1877, 1880 to 1883, 1888 and 1889, 

 in 1894, 1899 and 1900. When "Bath whites," " Camberwell 

 beauties," " clouded yellows," " queens of Spain," and "tailed 

 blue " butterflies were seen on the cliffs of Sussex and Kent ; 

 when "convolvulus," "madder," or "oleander" hawks came to 

 the garden flowers, two other visitors, celerio and lineata, being 

 blown across on the breathing of the sirocco from Africa to 

 Montpellier in June, 1834 ; then the " humming-bird moth," 

 that swarms where the tepid waves of the Mediterranean dash 



