OF INSULINDE, 25 
There are australian species in the British Museum and in 
my own collection, which are somewhat allied to it. No 
doubt it has an australian origin, so as the general fauna 
of these islands has. 
Pseudoformicaleo, nov. gen. 
Nearly related to Formicaleo but different in the following 
characters: 
Antennae somewhat shorter. Abdomen of the o longer 
than in the 9, longer than the forewings. 
Legs with long tarsi, the basal and apical joint very 
long, equal in length, as long as the 3 intermediate joints, 
the spurs long and straight, as long as the basal joint, 
the apical joint with 4 rows of spines at the underside 
and the claws with an obtuse dent. 
Wings as in Formicaleo, but the tips acutely angulated 
and somewhat curved. 
Habitat: Africa and Asia. 
To this genus belongs the widely spread Myrmeleon gracilis 
Klug that occurs in Asia and Africa. 
In Insulinde the following new species occurs: 
Pseudoformicaleo jacobsoni, nov. spec. 
(Plate 2, fig. 8, 9). 
Antennae scarcely longer than head and thorax together, 
black, narrowly annulated with yellow, the basal joint 
yellow with short white hairs. Head scarcely broader than 
the thorax; underside, mouthparts and labrum yellow, tips 
of mandibles and labialpalpi brown. A brown erossband 
beneath the eyes, above them three black spots which are 
more or less connected by dark colour. Vertex (fig. 11) 
with a grey exudation and two rows of black markings. 
Occiput paler, with brown markings. Eyes black-brown. 
Prothorax very long and narrow, dark plumbeous with a 
Notes from the Leyden Museum, Vol. XX XI. 
