206 



THE ENTOMOLOGIST S EECOED. 



DiPTEBA. 



Myrmecophilous Diptera (18). 

 Termitophilous Diptera (2). 



Oethopteea. 

 Myrmecophilous Orthoptera 



"(7). 

 Termitophilous Orthoptera (?). 



Neueopteea ("?). 



Psetjdo-Neuropteka. 

 Myrmecophilous Pseudo-Neuroptera (1). 

 Terniitophilous Pseudo-Neuroptera (4K 



Khyxchoxa. 

 (Myrmecophilous 72, Termitophilous 3.) 

 Hetep.opteea. 



Myrmecoiihilous Heteroptera 



(39). 

 Termitophilous Heteroptera 

 (1?). 



HOMOPTEEA. 



Myrmecophilous Homoptera 



■(15)- 

 Termitophilous Homoptera(l) . 



Phytopthiees. 



psyllidae (1). 



Aphidae (9). 



COCCIDAE. 



Myrmecophilous Coccides 



(8). 

 Termitophilous Coccides 



Thysant;ea. 

 (Myrmecophilous 20,Termitophilous 1.) 



PODUEIDAE. 



Myrmecophilous Podurides (8,) 

 Termitophilous Podurides (1). 

 Lepismidae (12). 



Myeiapoda (?). 



Aeachnoidea. 

 (Myrmecophilous 60, Termitophilous 4.) 

 Pseudo-Scorpionina and Scorpionina(?). 



Araneina. 

 Myrmecophilous spiders (26). 

 Termitophilous spiders (.8). 



Acakina. 

 Myrmecophilous Acarinids(34) . 

 Termitophilous Acarinids (1?). 



Crustacea. 

 Tsopoda (9), 



Migration and Dispersal of Insects : Lepidoptera. 



By .J. W. TUTT, F.E.S. 



Dr. Hamilton, writing from Brigantine Beach, New Jersey, in 1885, 

 reports : " The multitudes of this butterfly that assembled here the 

 first week in Septemlier is almost past belief. Millions is but feebly 

 expressive. Miles of them is no exaggeration. On the island is a 

 strip of ground from 150 yards to 400 yards wide, and about two and 

 a half miles in length, overgrown with ]i[yrica ccvifcra (bayberry). 

 After three o'clock the butterflies, coming from all directions, began to 

 settle on the bushes, and, by evening, every available twig was 

 occupied. To see such multitudes at rest, all suspended from the 

 lower sides of the limbs, side by side, as is their well known custom, 

 was something well worth seeing. One evening, I travelled more than 

 half the distance of their encampment, and learned that it extended 

 the whole length and breadth of the bushes. In the morning they 

 gradually se]:)arated, and did not appear unusually numerous during 

 the day, but in the afternoon they came again as described. I found 

 them on the 2nd, the day of my arrival, as related above, and this was 

 repeated daily till the 6th, the forenoon of which was rather calm and 

 sultry. A storm of Avind and rain came on about 2 p.m., continuing 

 until midnight. The next afternoon few came to camp, the great 

 army had disappeared. But how ? when ? where ? During the next 

 few days they appeared again in considerable numbers, about as 

 numerous as they had been observed in former Septembers, but 

 insigniflcant when compared with those that preceded. The males 

 and females were about equal in numbers. Not a single stalk of their 

 food-plant {Asdepias) groAVs on the island." 



On September 23rd, 1886, Dr. Ellzey reports {Tii<<eet Life, i., p. 



