336 Dr. T. A. Chapman’s notes on Micro-Lepidoptera 
family ; and the following might be a brief outline of the 
characters, distinguishing them from each other and from 
other forms. 
Micropterygidx. Ovum: Ovoid in shape, delicate, trans- 
parent, and nearly colourless; laid in the parenchyma of 
a leaf. 
Larva: Leaf-mining, without legs. 
Pupa: In a dense subterranean cocoon, escaping there- 
from for emergence; segments of abdomen all “ free; ” 
has large jaws, used for assisting the pupa out of cocoon, 
like those of Trichoptera, but larger and more elaborate. 
Imago: Large six-jointed maxillary palpi, no trace of 
jaws, 9th and 10th abdominal segments of ¢ form a knife 
arrangement for piercing leaves for oviposition; 8th is 
an external ordinary (but terminal) segment. (In Adelidx 
the 8th is absorbed in the piercing apparatus, and the 
7th is the external terminal segment.) 
Hriocephalide. Ovum: Spherical, opaque, covered with 
a snow-like coating, laid externally. 
Larva: Short, square, and angular, with 8 rows of 
globular appendages, and 8 pairs of abdominal legs, an 
anal sucker, long antenne, feeding exposed. 
Pupa: (Probably not unlike a Nepticula, and in a 
cocoon above ground.) I have only seen the head and 
antenna piece, and cannot build up the whole pupa from 
that with any confidence. 
Imago: Six-jomted maxillary palpi, used as feeding 
hands: well-developed, serviceable jaws; ovipositor simple, 
tubular, of three pieces, last abdominal segment the 7th. 
‘There is also the neurational difference noted by Stainton. 
I propose, then, to accept and accentuate this division, 
leaving the name Micropteryx for the “higher” group, 
whose larve have been known for so long, and as to 
whose oviposition and corresponding structure of the 
imago I had the pleasure of assisting my friend, Dr. 
Wood, in his researches, though in view of my observa- 
tions on their pupx, I think it must be very doubtful 
whether they can be called the “higher” group any 
longer. 
The LHriocephalide attracted my renewed attention 
when engaged in working out the oviposition of the 
Micropteryges. In the far-off days, when the life-histories 
