AQUATIC INSECTS IN NEW YORK STATE 279 
Eastern Long Island species 
COLLECTED AuG. 18, 1900 
Lestes disjuncta. Bridgehampton 
Enallagma doubledayi. Bridgehampton 
Enallagma aspersum. Bridgehampton 
Enallagma durum. Near Mecox bay (abundant; in cop.) 
Enallagma civile. Near Mecox bay (abundant; in cop.) 
Ischnura verticalis. Near Mecox bay and Bridgehampton 
Anax junius. Near Mecox bay and Bridgehampton 
Plathemis lydia (trimaculata). Bridgehampton 
Libellula pulchella. Bridgehampton 
Tramea carolina. Bridgehampton 
Mesothemis simplicicollis. Bridgehampton 
Near Mecox bay, where I found the two species of Enallagma 
above recorded were many individuals of the spider, Epeira 
stellata Hentz, whose orblike webs, 4 to 6 inches in diam- 
eter, were stretched between the stalks of sedges and of 
grasses. Within a distance of not more than -,j, mile along the 
pond’s edge, I found six individuals of Enallagma in the spiders’ 
webs. The dragon flies were all fully colored, were more or less 
enshrouded in silk, and some of them were partly eaten. In 
one and the same web were two Enallagmas. 
Part 4 
SOME NEW LIFE HISTORIES OF DIPTERA 
BY JAMES G. NEEDHAM 
During the second season of our station the work done on 
Diptera was chiefly done on the families Chironomidae, 
Qulicidae, Simuliidae, and Blepharoceridae, and is reported 
on by Mr Johannsen in part 6. But, in the course of routine 
operations, a few other very interesting new forms were come 
on, and four of these will be described in the following pages. 
Two of these, Tipula flavicans and Epiphragma 
fascipennis, were bred, and two were found only in the 
larval stage. These larvae, however, are so unique and inter- 
esting as to warrant their description at once; one clearly 
