214 " INSECTA. 
their very long and equally flagelliform maxillary palpi. The thick 
or callous point of the superior wings is replaced by a cell. The 
lamine of the ovipositor are smooth and entire. , 
The larve inhabit the interior of plants or old wood *. 
Cepuus, Lat. Fab.—Tracue rvs, Jur., 
Where the antennz are thickest near the end, and inserted near 
the front. According to certain observations published in the Bullet. 
Univers., of Baron Férussac, the larva of the most common species 
pygme@us—lives in the interior of the stems of the wheat +. 
Xipuypria, Lat. Fab.—Urocervs, Jur., 
Where the antenne are inserted near the mouth, and more atte- 
nuated towards the extremity f. 
The second tribe, that of the Urocrrara, Lat., is distinguished 
from the preceding one by the following characters: the mandibles 
are short and thick; the ligula is entire; the ovipositor of the fe- 
males is sometimes very salient and composed of three threads, and 
sometimes capillary and spirally convoluted in the interior of the ab- 
domen, 
This tribe is composed of the genus 
Srrex, Lin. 
The antenne are filiform or setaceous, vibratile, and formed by from 
four to twenty-five joints. The head is rounded and almost globular; 
the labrum very small; the maxillary palpi are filiform. with from 
two to five joints, and the labials with three, the last of which is the 
thickest. The body is almost cylindrical. The anterior or posterior 
tarsi, and in several the colour of the abdomen, differ according to the 
sex. The female deposits her eggs in old trees, most commonly in 
Pines. Her ovipositor is lodged at base between two valves, form- 
ing a groove. 
Oryssus, Lat. Fab. 
Where the antenne are inserted near the mouth, and consist of ten 
or eleven joints. The mandibles are edentated, and the maxillary 
palpi long and formed of five joints; the posterior extremity of the 
abdomen is almost rounded or but slightly prolonged, and the ovi- 
positor capillary and spirally convoluted in the interior of the ab- 
domen. 
* See Dalm., Anal. Entom,, p. 27. The number of joints is the same as in the 
preceding Insects, and in this respect that naturalist is mistaken. See also the Nouv. 
Dict. d’ Hist. Nat., 2d edit., article Pinicole, and the Monograph of the Tenthredinitz 
of M. Lepeletier. 
+ See the work already quoted, and the Monog. of the genus Sirex of Kliig, 
G. Astatus. 
t Ibid. and Jurine. Kliig designates this genus by the name of Hy bonotus. 
