HYMENOPTERA. 265 
Those species, in which the two lateral divisions of the ligula are 
as long as the labial palpi and setaceous, and where the males haye 
long antennz, form the subgenus Eucera proper. M. Spinola, 
under the generic name of Macrocera, has separated from it certain 
species in which the maxillary palpi have but five distinct joints, and 
the superior wings but two cubital cells. 
The Meuissopxs, Lat., are American Eucere with but four joints 
in their maxillary palpi. They have three cubital cells. 
E. longicornis ; Apis longicornis, L.; ‘Panz., Faun. Insect. 
Germ., fascic., LXIV, 21, the male; LXVIII, 19, and LXIV, 
16, the female. (The male is black ; labrum and anterior extre- 
mity of the head yellow ; its superior portion, thorax, and two 
first abdominal annuli are covered with a russet-down; an- 
tenn black and somewhat longer than the body. The antennze 
of the female are short; the maxillz and labrum project slightly 
at base, the abdomen is marked with grey stripes, and the anus 
isrusset. She appears in the very beginning of spring *. 
In the other Apiariz of this subdivision, the paraglossee are much 
shorter than the ligula; they always exhibit three cubital cells. 
In some, the maxillary palpi evidently consist of six joints, as in 
Meuirrurea, Lat., 
Where the antenne are short and terminated in a club in the males. 
All the joints of the palpi are continuous and in the same direction f. 
Anrtuornora, Lat.—Mecitia, Cenrris, Fab., 
Where the antennz are filiform in both sexes, and the two last joints 
of the labial palpi form a little oblique stem. The 
A. parietine, Ann. du Mus. d’Hist. Nat., III, builds her nest 
in walls, and constructs a perpendicular and slightly curved 
tube at its entrance, of grains of earth. Having deposited her 
eggs, she destroys it, or perhaps employs it in closing up the 
entrance f. 
In others, the maxillary palpi consist of but five joints, and those 
of the labial palpi are continuous. This is what distinguishes the 
Sarapopa, Lat. § 
Finally, others have but four joints in their maxillary palpi. The 
first joint of the posterior tarsi of the males is very large, curved, 
and arched or concave at its internal extremity. A stout, dentated 
spine is observable at the same end of the posterior tibize of the fe- 
males, 
Ancy.Loscets, Lat. || 
In those, the mandibles are pluridentated on the inner side ; the 
maxillary palpi, as in the preceding subgenus, consist of but four joints. 
a 
* Lat., Gen. Crust. et Insect., IV, p. 173. 
+ Lat., Ibid., 173. 
+ Lat., Tbid., 173. 
§ Lat., Ibid., 173. 
\| Insects brought from Brazil by M. de Saint-Hilaire. My genus Meéiitome, 
Fam. Nat. du Régn. Anim., originally formed with female Ancyloscelides, must be 
suppressed. That of the Y'efrapedia, Kg, perhaps re-enters the preceding one. 
VOL, IV, a 
