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XXXVII. Description of the immature state of a Ceylonese 
insect apparently belonging to an undescribed genus. 
By J. O. Wesrwoop, M.A., F.L.S., &e. 
[Read October 5th, 1881.] 
PuaTE XXII., Fic. 1, AND DETAILS. 
Tue accompanying figure and details represent an imma- 
ture insect, of which several specimens were taken in the 
spring of the present year, running about on the surface 
of the earth in a garden flower-pot covered with very 
short moss, by G. H. K. Thwaites, Esq., of Fairieland, 
Kandy, Ceylon, who, remembering the attention which 
I had formerly bestowed on the species of Emlia, and 
thinking this insect was allied to that group, kindly sent 
me the specimens for examination and description. The 
specimens were very active, and not easily caught un- 
injured, and were placed in spirits of wine. 
They are narrow, linear, and depressed in form, like a 
Staphylinus, a quarter of an inch long, the body being 
terminated by two very long slender anal filaments, like 
those of an Ephemera, which are formed of numerous 
(more than fifty) minute articulations. These filaments 
are 8 lines long, and are consequently nearly three times 
the length of the entire insect. The head is depressed 
and rather larger than the prothorax, with prominent 
lateral eyes. ‘The clypeus is very short and narrowed, 
the labrum shortly semicircular and furnished with a 
frontal row of fine sete2. The mandibles are short, 
triangular, strong, and armed at the tips with two teeth, 
the apical one being the larger ; the outer edge is rounded 
and armed with three strong sete. The maxille are 
regularly galeated, the internal lobe slender, curved, 
acutely pointed at the tip, below which, on the inner 
margin, it is rather dilated, and furnished with two sete ; 
the outer lobe is shorter than the inner, curved and 
obtuse at its tip. The blade of the maxille is oblong, 
with a series of strong muscles inserted transversely on 
its inner side; the maxillary palpi are about half the 
length of the head, five-jointed, the two basal joints very 
TRANS. ENT. soc. 1881.—paRT iv. (DEC.) ° 41 
