34 MECOPTERA AND PLANIPENNIA 
so dense at the borders of the tips, that these appear to 
be margined with pale brown. Costalveins simple in both 
wings, in the forewings they form two rows at about one 
sixth before the pterostigma and in the hindwings there are 
some bifurcated ones before it. Pterostigma small, white, oval, 
not touching the foreborder, in the hindwings very small. 
The pelotte is only developed as an acute lobe at the 
base of the hindwings. 
Habitat: Silhet, Malacca, Sumatra, Celebes, Ceram 
and New Guinea. 
The dimensions of a {' from Tenasserim, Dawnat hills, 
2000 ft, 22. IV. 1897, Col. Bingham (coll. v. d. Weele) are: 
Body 29 mm., forew. 35 mm., hindw. 37 mm, ant. 8 mm. 
Abd. 22 mm., gr. br. 8} mm., gr. br. 7} mm. 
In this species we distinguish several subspecies, in which 
the wings increase in breadth going from the West to 
the East. 
Myrmeleon sagax sagax Walker. 
The type is from Silhet. No doubt the indication 12 lines 
(25 mm.) for the body is wrong. The above mentioned 
specimen from Tenasserim does not differ from the type. 
Myrmeleon sagax sumatrensis, nov. subsp. 
Much resembling sagax sagaz, but the median markings 
of the head somewhat broader. The dimensions are the 
same as in the typical form. One female collected by Dr. B. 
Hagen in Tandjong Morawa, Serdang, North East Sumatra. 
Myrmeleon sagax celebensis, nov. subsp. 
(Plate 3, fig. 12, ©). 
Distinct from swmatrensis by the broader wings, which are 
shorter and about 1'/, mm. broader. The basal joint of 
the antennae is yellow (fig. 13). The median markings 
Notes from the Leyden Museum Vol. XXXI. 
