HYMENOPTERA. 13z 
unequal joints; the first joint of the antennz is almost conical. 
Such is 
Tipuia, Fab. 
To which we may unite the Teneyra of Latreille(1). 
In the others the maxillary palpi are short and composed of almost 
similar joints; the first of the antenne is elongated and almost cyl- 
indrical. 
Sometimes this joint receives and conceals the following, as in 
Myzine, Lat. 
Where the mandibles are dentated(2). 
Meria, Illig. 
Where they are not dentated(3). 
Sometimes the second joint of the antenne is exposed, as in Sco- 
LIA proper, or 
Scorra, Fab.(4) 
2. Those Fossores in which the first segment of the thorax is form- 
ed as in the preceding ones, where the legs are still short, but slen- 
der, and neither spinous nor strongly ciliated, and where the antenne 
in both sexes are at least as long as the head and thorax. 
Their body is usually smooth, or but very slightly pubescent. 
b. An incomplete cubital cell, closed by the posterior border of the 
wing’. 
TENGYRA. 
B. Second joint of the antennz enclosed in the first. Four cubital cells, 
the last closed by the posterior border of the wing in the males, and 
neither of them petiolate. 
MYZINE. 
M. Leon Dufour—Journ. de Phys., Septemb. 1818—has published some curious 
observations on the anatomy of the Scoliz. 
(1) Lat., Gen. Crust. et Insect., IV, p. 116; Fabricius; Jurine; Van der Linden. 
(2) Lat., Ibid.; Van der Linden. 
(3) Lat., Ibid.; Van der Linden. 
(4) Lat., Ibid.; Fab. See also the Monograph of the Fossores by Van der 
Linden. 
