78 THE ENTOMOLOGIST. 
kept the larve and cocoons; fig. 6 is taken from one of these. 
Out of the whole number eight imagos were reared; these 
were all females. I should not have known the male, which 
Hartig, loc. cit., has also not described, had it not been that 
Mr. C. Ritsema had taken one (on the 8th of May, 1868) at 
the Bolwerk at Haarlem, and had presented it to the 
collection of our Society. The following is a description of 
the female:—Length about four millemetres, expansion 
eleven millemetres. Body short and compressed, the abdo- 
men rather broad, and the penultimate segments somewhat 
bigh; thereby differing in form from many other Nemati. 
Head and body shining, and of a black tint, more or less 
tending to brown. The head and the back of the thorax are 
thickly clothed with very short dark gray hairs. The antennz 
are slender and filiform, more than half as long as the body; 
in some individuals entirely black; but in most cases ferru- 
ginous on the under side. The clypeus, above the labrum, 
truncate ; labrum, base of mandibles and palpi reddish white. 
On the thorax the tegule are brown, and the cenchri gray. 
The wings are somewhat smoky, yet iridescent; the costal 
nervure and the stigma are of a pale brown tint, which might 
be described as tea-colour (see fig. 6). The legs are pale 
yellowish red, the tint of unripe yellow melon; they are 
darker in some individuals than in others. The bases of the 
coxe and the middle of the femora are usually more or less 
brownish ; in the posterior pair (fig. 7) the extremities of the 
tibial and of the tarsal joints are pale ferruginous. 
The male differs in being much more slender, and, when 
looked at from above, having a longer head; also the abdo- 
men is cylindrical, the anus being provided with two 
horizontal valves; added to this the antennez are longer, 
being four-fifths of the length of the body; they are entirely 
ferruginous, with the exception of the upper surface of the 
first three joints. Further, the course of the nervures at the 
under side of the submarginal cells is somewhat different. 
And, lastly, the legs are a little longer, the femora without 
any brown colour, and the posterior tarsi nearly black. 
I am not acquainted with the egg; I suppose it is concealed 
in wounds made in the veins of the leaf. The emergence of 
the imago in July and the capture of another in May point 
to two or more generations in the year. 
