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37. Diagnosis of a Living Species of the Genus : 
Diplonema (Psychodid Diptera). 
By N. Awnnanpate, D.Sc., Superintendent, Indian Museum. 
nus Diplonema appears to have been known hitherto 
from sive tertiary species, which occur in Baltic amber, and 
ain! ae sve aa form in fossil copal. The surviving form here 
des by deg at Kurseong in the ates 
distit a. 5000 feet) in July. Three specimens ( 2°) 
e obtained. A full sestnn will be published later in the 
ands of the Indian Museum 
Diplonema superstes, sp. nov. 
3, 2 Total length 3 mm.; expanse of wings 8 m 
Colour sooty black with a strong white hviene. ; a broad 
white band on each tarsus 
Antenna with 15 joints ; the basal joint cylindrical, the 
side ; joints of the flagellum spindle-shaped, the distal en 
smooth, evoid of hairs; the last joint bearing hairs nr ro- 
dused at the tip into a minute, cylindrical, blunt process covered 
with exceedingly fine e pubescence. Palpi 4-jointed; the first 
with flattened hairs, which gra — take the form of scales 
towards the base of the second joint. 
the veins vicina with a double row of hairs; os ma mained fiche 
prasten seventh almost as sans as the 
omen covered with bristling hale, which are mixed with 
scales on the thorax; the front bearing a dense tuft of semi-erect 
scale 
nape genitalia pen Sepe a well re i intromittent 
organ present, consisting externally of two elongated, pointed 
valves ; gu appendages borne at the end of a flattened sub- 
