174 THE ENTOMOLOGIST. 
wings have a brown stain below the stigma towards the base, 
and a brown or black border along the apical and posterior 
margins. The following is a description of the three examples 
figured :— 
Figure 7; a male. Head, thorax, and legs, as far as the 
tarsi, purplish black, rather strongly punctured, and covered with 
erect silky black hairs. Jaws black, and palpi white. Antenne 
clavate, six-jointed; the first two joints black, the third also 
black, but having the apex red-yellow; the remaining joints 
red-yellow. The tarsi are sordid yellow, having the first joint 
and the tip of the last, as also the claws, brownish. The 
scutellum is very short and broad; the cenchri brownish white. 
The first segment of the abdomen is deeply emarginate, the 
emargination being of a semicircular form, and consequently the 
space behind it, where the chitine is wanting, is large. The 
dorsal surface of the abdomen is purplish black, with a red- 
brown reflection on the third and fourth segments ; the under-side 
is red, except the anal plate, whichis purplish black. The upper 
side of the seventh segment is deeply indented in the middle. 
The upper wings have a purplish blue reflection in the 
marginal cell, which is also observable at the, base of the 
under wings. 
Fig. 8. A female, smaller and weaker. Head purplish black, 
with bronze cheeks. Thorax of the same black tint, the pro- 
thorax, however, bordered with sordid yellow. The first two 
joints of the antenne brown, all the remainder reddish yellow. 
The coxe and apophyses purplish black; the femora are of 
the same colour, having, however, the knees pale brown; the 
tibie and tarsi yellowish. The two anterior segments of the 
abdomen, the base of the third in the middle of the dorsal 
surface, and the eighth segment are purplish black ; the remaining 
segments are greenish yellow, both above and underneath, having 
black markings between. The broad valves of the saw and the 
ovipositor are shining brown, and covered with short hairs. The 
wings are the same as in the preceding. 
Fig. 9. A male taken by Mr. Ritsema in July near the water- 
works in the downs between Vogelenzang and Berkenrode. It 
was much worn, and had lost almost all its hair and the dark 
borders of the wings. Head and thorax purplish black ; four 
little lines on the vertex and the posterior border of the prothorax 
