270 THE ENTOMOLOGIST. 
The development of the imagos followed pretty speedily. 
On the morning of the 6th of July I found two males had 
come out; another appeared on the 7th, two on the 9th, and 
so on up to seven,—these were all males: they were all much 
smaller than the female I had taken on the lime-tree just 
after she had deposited her eggs, or, to speak more precisely, 
just before I saw the freshly-produced larve; as to colour 
and other characteristics they completely resembled the 
females. 
The female in question is represented at fig. 7. Head and 
thorax shining black, clad with a fine brown pubescence; 
mandibles ferruginous, with black tips. The antenne are 
black, somewhat hairy ; the first two joints cup-shaped, not 
very small; the third nearly half as long again as the first 
two joints together, ending obliquely at the apex; the fourth 
not more than two-thirds of the preceding joint, the remainder 
diminishing regularly in length and breadth; the last joint 
conical. ‘I‘he abdomen rather broad, shining black, without 
hair. As regards the legs, the coxe and trochanters are 
black ; the femora of the first pair black, with a rather broad 
pale red spot on the knees ; those of the second pair have the 
spot smaller; the femora of the last pair are entirely black. 
The anterior tibia are brownish yellow, white at the base; 
those of the second pair somewhat darker at the apex ; the 
tibiew of the last pair are black, with the base obscure white ; : 
the tarsi are respectively of the colour of the tibia to which 
they belong. In the living insect the wings are purplish 
black; in the dead insect brown, with the exception of the 
apex, which is white and transparent. In the second and 
third submarginal cells are some black horny dots; the 
anterior portion of the anal cell (area lanceolata) has an 
oblique transverse nervure. The insect was only six mille- 
metres long, expanding to eleven millemetres. 
The males only differed in being much smaller (four 
millemetres), having proportionately longer antenne, and in 
having merely narrow white rings on the tibiae and tarsi of 
the posterior legs. 
Ratzeburg considers that in favourable years this species 
may produce three generations ; and I am quite of his 
opinion. Supposing the first imagos to appear, in warm 
seasons, in the beginning of May, then the second brood 
ew ea, eo ee ee 
ar abepont 2S: 
