HYMENOPTERA. 153 
cells by horizontal septa formed with agglutinated raspings of 
wood. She then, commencing with the lowest, deposits an egg 
and some paste in each of them. She sometimes bores three 
canals in the same piece of wood. 
They are peculiar to warm climates(1). 
The labial palpi of the other Apiariz are in the form of squamous 
setze; the two first joints, compared with the two last, are very large, 
compressed, scaly, and have a membranous or transparent margin. 
The maxillary palpi are always very short, and frequently consist of 
less than six joints. The labrum, in a great number, is elongated 
and inclined on the mandibles, sometimes forming a long square and 
sometimes an elongated triangle. 
The Apiariz, which in our work on the natural families of the 
animal kingdom we have collectively designated by the name of 
Dasygastre, are remarkable—as intimated by that name—for the 
numerous, short, crowded hairs, forming a silky brush, that almost 
always(2) covers the abdomen of the females. The labrum is as long 
as it is wide or longer, and square. The mandibles of the females 
are strong, incisive, triangular and dentated. The paraglosse are 
always very short, squamous, and pointed at the extremity. 
Of all the subgenera of this little group, that which appears to us 
to approximate most closely to the Xylocopx, and which alone pre- 
sents maxillary palpi consisting of six joints, and wings furnished 
with three complete cubital cells, is the 
Crratinas Lat. Spin. Jur.—Megilla, Prosopis, Fab. 
The body is narrow and oblong; the antenne are inserted in little 
fossulz, and terminated almost in an elongated club; the mandibles 
are sulcated and tridentated at the extremity; the abdomen ap- 
proaches to an oval, and is destitute of a‘silky brush. The labrum 
is proportionally shorter than in the following subgenera, where it 
forms an elongated quadrilateral. According to the curious obser- 
vations of M. Maximilian Spinola—Ann. du Mus. d’Hist. Nat.—the 
habits of the females are the same as those of the Xylocop2x(3). 
(1) Lat., Gener. Crust. et Insect., IV, 158. To this subgenus, until we have 
further examined it, we refer the genus Lestis of Messrs Lepeletier and Serville— 
x, (950 ' 
(2) The Ceratinz, Stelides and Celioxydes, although destitute of a ventral scopa, 
should make part of this group, on account of the form of the labrum and man- 
dibles, and other general characters. 
(3) Lat., Gener. Crust. et Insect., IV, 160. See also the article Cératine of the 
second edition of the Nouy. Dict. d’Hist. Nat. 
VoL. 1V.—U . 
