OF INSECTS. 
315 
many caterpillars, which, if left to multiply unchecked, 
would totally consume many of our most useful plants. 
The genus Joppa is principally distinguished by 
the form of the antennae, which are much thickened 
beyond the middle, and then terminate in a point, 
as is well seen in the handsome species (/. Joppa,) 
figured on PI. XXXI. 
Another example of this genus is given on PI. 
XXVI. fig. 24, J. antennata , (Fabr. Syst. Piez. 122, 
Ent. Syst. 158, Iehneumonia,) from a drawing by 
Mr. Westwood. It is a native of South America. 
The specimen is in Mr. Hope’s collection. 
EPHIALTES MANIFESTATOR. 
Plate XXXII. Fig. 1. 
Qrav. Pimpla manifestator, Fabr. Syst. Piez. Ichneumon mani- 
festator, Linn. Mur sham in Linn. Trans. III. 23, PI. 4, fig. 
1-5. 
The subgenus ephialtes of Gravenhorst is charac- 
terised by a long abdomen, which is generally tuber- 
culated, the anterior segments longer than broad, 
those at tlie apex with a longitudinal groove on the 
underside in the females; ovipositor long. The 
species above named is from eleven to fifteen lines in 
length, the female being largest. Body black, palpi 
and labrum ferruginous, thorax sometimes with a 
ferruginous spot at the base of the wings, the latter 
light smoke colour; legs long and rather slender, 
fulvous or rufous, the posterior tarsi and tibiae, and 
sometimes the knees, fuscous. Ovipositor longer 
than the body, the tube chestnut red. 
