HYMENOPTERA. 125 
divided into three segments by sutures, where the maxillary palpi 
are very short, and the second joint of the antennz is set in the first, 
form the genus 
Myrmecopa, Lat.(1) 
ScLERODERMA, Klug. 
Only differs from Myrmecoda in the elongation of the maxillary 
palpi and antennz, of which the second joint is exposed(2). In 
Meruoca, Lat. 
The top of the thorax is as if knotted or articulated(3). 
FAMILY II. 
FOSSORES(4). 
The second family of this section comprises those Hyme- 
noptera armed with a sting, in which all the individuals of 
both sexes are furnished with wings, and live solitarily ; in 
which the legs are exclusively adapted for walking, and in 
several for digging. ‘The ligula is always more or less wi- 
dened at its extremity and never filiform or setaceous. The 
wings are always extended. 
They compose the genus 
(1) Lat., Ibid., p. 118. 
(2) Lat., Ibid. 
(3) Lat., Ibid. 
(4) M. Van der Linden, already quoted, has lately acquired a new title to our 
esteem, by the publication of the first part of a Monograph of the European In- 
sects of this family. See Obsery. sur les Hymen. d’Eur., de la Fam. des Fouis- 
seurs. 
N.B. The divisions of the family of the Fossores form so many principal genera 
or subgenera. Scoria, Saryea, SpHex, Bempex, Lanna, Nysson, Crapro and 
PHILANTHAUS. 
