NEEDHAM—NEUROPTERA, MYRMELEONIDA FROM THE INDIAN OCEAN 245 
and the tip of the fifth segment, fuscous : spurs and claws brown: spurs gently curved, as 
long as the three basal joints of the tarsus. 
Wings grayish with a yellowish stigma, veins alternately fuscous and yellow, as are 
also some of the terminal forks. Im the basal part of the subcostal cell are numerous 
clustered dots, with three groups of such dots farther out beyond the base of the radial 
sector. There is a brown spot, usually conspicuous (in one specimen apparently absent) 
on the apex of the cubito-anal loop, sometimes double and very variable. There are some 
indistinct brownish touches along the middle of the median vein and on the nexus near 
the tip of that vein, on a few cross-veins immediately before this nexus and about the 
middle of the hind border. The hind wing is unmarked behind the radial vein save for 
faint touches of brown at the median nexus. The two cross-veins in the space beyond 
the stigma, behind the vein #,, are tinged with brown. The veins in the costal area are 
forked from the level of the base of the radial sector to the stigma, and connected 
together by a rather irregular series of gradates. The radial planate is well detined 
(although forming a broken line) in both wings, but the cubital planate is little developed, 
its course being hardly traceable. The wings are elongate, obtuse at the tips and parallel- 
sided from the middle to the level of the stigma. 
Abdomen slender, inconspicuously clothed with a very short smooth brown pubescence. 
Colour yellowish, with large subapical dorsal spots on all the segments, overspreading 
segments 2, 7, and 8, transversely divided on segment 3, and divided lengthwise by a 
narrow yellow median line on segment 6. Male appendages yellow, thick and appressed- 
parallel at base, forcipate beyond, slender and held horizontally, and thickly clothed with 
fuscous recurved hairs. | 
Of the four specimens two are males and two are females. One of the males is 
almost destitute of the larger brownish wing markings, but is in all other respects 
apparently identical with the other specimens. 
Loc. Aldabra. This fine species is represented by four specimens collected by 
Mr J. C. F. Fryer (1908). 
3. Hormicaleo ornatus, sp. noy. (Fig. 3). 
A slender pale fulvous species, closely allied to F. bistrigatus (Rambur) from Tahiti 
and Australia. 
Length about 27 mm. Expanse of wings 78 mm. Antennze long (9 mm. of one are 
present, with the clubbed end entirely lacking), yellowish-brown, slightly darker at the 
ends, and with black half rings about the basal segments on the dorsal side. Face yellow 
below. A broad fuscous band between the eyes surrounds the bases of the antennze 
posteriorly, and there is another paler brownish band extending transversely between the 
eyes across the rear of the head above. Wings long and narrow with delicate venation 
and elegant markings and iridescence. Fore and hind wings of equal length, both are 
widest just before the stigma, which is indistinct. The veins are brownish. There is a 
quadrate brown spot on the first cross-vein beyond the stigma, behind vem #,, and there 
is more or less of brown on the cross-vein next following. There is a similar brown spot 
in the fore wing on the median nexus and there are paler spots on three or four of the 
