XX. TRYPOXYLON, 115 
triangular, rounded in front and convex; the mandibles arcuate, 
unidentate, acuminate; the labrum concealed. The THORAX 
ovate; the collar transverse and separated from the dorsolum 
by a deep suture ; the dorsolum narrowing towards the collar ; 
the scutellum large, lunulate ; the metathorax obtuse, and much 
narrower than the mesothorax; the superior mings with one 
marginal cell becoming narrower beyond the submarginal cell 
and terminating acutely, and one submarginal cell which receives 
the recurrent nervure—a second and third submarginal generally 
slightly traced, as also a second recurrent nervure which is re- 
ceived at the middle of the second submarginal cell; the legs 
slight and short, the anterior tarsi and posterior tibiz simple. 
The aBpomeEN very elongate and clavate, the margins of the 
segments very much constricted above—that of the first 
forming a sort of subpyriform node. 
Type, T. figulus, Z. 
++ This genus, the name of which is from tpuraw, I 
pierce—ftaAov, wood, was established by Latreille in his 
* Précis” from the repository Sphex; it was adopted by 
Fabricius, in 1804. Jurine, in 1807, separated and figured 
the same insect by the name of Apiws, from not recognising 
it by the characters laid down by Latreille. The “ His- 
toire” of the latter, in which the type was described, was 
indeed published prior to the publication of Jurine’s book, 
but it was then too late for the latter to alter his plates. 
They are supposed to be parasitic, but the observations 
under the 7. figulus will show this to be incorrect, at least 
in its strict sense. 
Sp. 1. Ficutus. Lin. 
atrum, labio segmentorumque marginibus lucidis. 
length 33—63 lines. 
Latr. Hist. 13.330; Nouy. Dict. 34, 568; Regne Anim. 5, 329; Fab. 
Piez. 181. 2; Spin, 1. 65. 1. 
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