32 MECOPTERA AND PLANIPENNIA 
cubiti and another oblique one in the apical field. The two 
latter are larger and more distinct in the hindwings. 
Body 23 mm., forewing 31 mm, hindw. 30 mm., ant. 8 mm. 
Abd. 16 mm., gr. br. 8 mm, gr. br. 6'/, mm. 
Habitat: Ceram. 
I only saw the type, a Q, collected in Ceram by Ribbe. 
Genus Myrmeleon Linné (1767). 
Linné, Syst. Nat. Ed. XIIyp. 918 (1767). 
The species of this cosmopolitan genus are characterised 
by the short clubbed antennae, which are mostly shorter 
than the head and thorax together. The legs are short 
and strong, with the basal tarsal joint or metatarsus but 
little longer than the following and the spurs straight 
and as long as it. 
The wings are equal in length, with acute tips and 
hyaline membrane. 
From Insulinde three species are known, two of them 
are divided in many subspecies. 
Myrmeleon sagax Walker. 
(Plate 3, fig. 12). 
Myrmeleon sagax Walker, Cat. Brit. Mus. Neur. p. 382, n°. 142 
(1853). Silhet. 
This species is distinguished from frontalis and acer by 
its larger size, paler colour of the legs and of the under- 
side of the body and by the slender antennae, which are 
only scarcely or not at all clubbed. 
Antennae black, about as long as the head and thorax 
together; the basal joint yellow at the tip and base. Under- 
side of the head and the mouthparts yellow, tip of mandibles 
black. Labrum yellow with two round darks spots. Frons 
yellow, with a semicircular black spot that is connected with 
the surrounding black streak of the antennae. Vertex arched, 
Notes from the Leyden Museum, Vol. XX XT. 
