84 SUB-FAMILY PAMPHILINA. 



Sub-family PAMPHILINA. 



Antennae setaceous, 14 37-jointed, the basal joint large. Wings 

 with two radial and four cubital cellules; transverse basal nervure 

 received in the first costal cellule. Abdomen flat, the sides of segments 

 acute. Ovipositor small. Tibias spined. Head large, flattish, or semi- 

 globular. Larvae without abdominal legs. 



Prothorax truncated or semi-truncated behind. 

 Middle lobe of mesonotum short, separated from the 

 scutellum by a deep fovea. Clypeus firmly united to 

 the front; its apex truncated or rounded, never in- 

 cised. Labrum small, inconspicuous. Mandibles large, 

 curved, toothed or not at apex. The third joint of 

 the antennas is often much longer than any of the 

 others, but is never much thicker than them. 



From the preceding sub-families the present is to be 

 known (1) by the larvae never having ventral legs; (2) 

 by the pronotum being truncated or transverse behind ; 

 (3) by the middle lobe of the mesonotum being small, 

 separated widely from the scutellum, which has at its 

 base a large depression ; and (4) by the basal nervure 

 being received in the first cubital cellule, or at least is 

 joined to the cubital nervure. 



In Phyllotoma we find sixteen -jointed antennas, but 

 its other characters are very different from the Pamphi- 

 lina ; in Hylotoma are to be seen spined tibiae, but its 

 antennae have only three joints ; the Cephidae have 

 spined tibiae as well as multiarticulate antennae, but the 

 structure of the latter is different, they being much 

 thicker ; the pro thorax, furthermore, is large, there is 

 only one spur on the anterior tibiae, and the abdomen 

 is compressed laterally. Finally the Siricidx are to 

 be known from them by the long ovipositor, by the 

 single spur on the anterior tibiae, &c. 



Tbe Xyelina agree with the Pamphilina in the struc- 

 ture of the thorax, in the basal nervure being united to 

 the cubital, in the larvae not having ventral legs, and in 

 the spined tibiae ; but differ in the smaller number of 



