436 Scientific Proceedings, Royal Dublin Society. 
three-quarters as long, very broad at base; upper edge, straight ; 
lower edge, evenly rounded to a blunt point (fig. 2). Legs, deep 
brown to blackish; coxee and inside of femora, pruinose. Wings 
(fig. 1), hyaline, slightly touched with brown at base, infuscated 
from inner edge of pterostigma to tip; pterostigma, black; 
forewings, with 14-15 antecubital, and 11 posteubital nervures, 
first four of the latter not continuous; hindwings, with 10-11 
antecubital, and 12-13 postcubital nervures. 
Laloki river, British New Guinea (coll. Col. St. G. Smith). 
This is, I believe, the first Zyxomma recorded from any part of 
the Australian region. Z. petiolatum, Rambur, the type-species 
from India, has but 12 antecubital nervures in the forewing, 
Z. obtusum, Alb.1 from Sumatra, has 13 antecubitals, and only 
7-9 postcubitals. Its anal appendages also differ in form from 
those of the present species. 
Family.—_AGRIONIDAs. 
CoENAGRIONINZ®. 
Genus. —TELEBASIS, Selys’ (Kirby*) (= Erythagrion, Selys'). 
Telebasis macrogaster (Selys). 
(Pl. XVI., figs. 10-15.) 
This dragonfly was described by the Baron de Selys Long- 
champs in 1857°, under the name of Agrion macrogaster, from 
a male which had lost its head, feet, and hinder abdominal 
segments. Later, the Baron, in his Synopsis of the Agrionine’, 
referred it, with doubt, to his genus Leptobasis. There are, in the 
British Museum collection, several specimens from Jamaica 
referred, doubtless correctly, to this species, and with these agree 
a male and two females in the Dublin collection. Fortunately 
some of the feet are preserved, and as they show small but distinct 
1 Veth’s Midden-Sumatra, 1881 (Neuropt., p. 1). 
2 Bull. Acad. Belg. (2) xx., 1865 (p. 378). 
’ Cat. Neur. Odonata (p. 155). 
4 Bull. Acad. Belg. (2) xlii., 1876 (p. 955). 
5 Selys in Sagra’s ‘‘ Hist. Cuba ’’ (Insectes, p. 465). 
6 Bull. Acad. Belg. (2) xliii. (p. 102). 
—_—S 
