On the ‘Challenger’ Neuroptera. 453 
The specimen now described, whilst it agrees in family 
characteristics with the genera mentioned above, differs consi- 
derably in those less important peculiarities which constitute 
their generic features. In each instance the size and orna- 
mentation of the scales is distinct from this one, and the speci- 
men now described is also more especially divergent from 
Thrissonotus and Cosmolepis in the non-extension of the anal 
fins. There are no intermediate small teeth, as in Centrolepis 
and others; and the deeply forked caudal fin, with its long 
upper lobe invested to its extremity with scales, is a cha- 
racter which readily distinguishes Oxygnathus, and separates 
this specimen from that genus. Hence there appears to be 
no alternative but to form a new genus under the title Ldsso- 
lepis, with the specific designation serratus. 
Locality. Lias, Lyme Regis. 
EXPLANATION OF PLATE XVI. 
Fig. 1. Lissolepis serratus, Davis. Natural size. 
Fig. 1 a. Scales, enlarged. 
L.—On the Neuroptera collected during the recent Expe- 
dition of H.M.S. ‘Challenger.’ By W. F. Kirpy, Assis- 
tant in Zoological Department, British Museum. 
TuE Neuroptera collected during the voyage of the ‘Chal- 
lenger’ were not very numerous, but included several inter- 
esting species. | With the exception, however, of a small 
series from the Philippines, which were sent home in papers, 
the greater number were destroyed by having been placed in 
_ spirit—a means of preserving insects which is just as ill 
adapted for large-winged insects, like dragonflies, as it is for 
soft-bodied or hairy insects, which should always be preserved 
dry. 
I have only ventured to describe one new species from 
Tongatabu. 
NEUROPTERA. 
ISOPTERA. 
Termitide. 
1. Termes fatalis (?). 
Termes ae Kon, Schrift. Berl. nat. Freunde, iv. p. 1, pl. i. figs. 1-9 
ANE 
oe fatalis, Hag. Linn, Ent. xii. p, 143 (1858), 
Philippines. 
