102 
William Morton Wheeler 
the latter collection. The specimen in the Brussels Museum is some- 
what doubtfully referred to this species, and the same is true of 
B 19982, which lacks the antennal funiculi. 
Plagiolepis squamifeva Mayr. 
Plagiolepis squmifera Mayr, Beitr. Naturk. Preuss. I, 1868, p. 40, Taf. I, Fig. 24, 
Dalla Torre, Catalog. Hymen. VII, 1893; p. 173; Ery. Andre, Bull. 
Soc. Zool. France, XX, 1895, p. 82; Handlirsch, Foss. Insekt. 1908, p. 859. 
The worher of this form differs from that of klinsmanni in the 
shape of the thorax and petiole, the mesoepinotal constriction being 
deeper and the epinotum more cuboidal and less rounded and the 
petiolar node much compressed anteroposteriorly so that it is high, thin 
and transverse, with a sharp border, which is feebly emarginate in the 
the middle. Joints 2 — 5 of the funiculi are about as long as broad. 
The pilosity is much as in klinsmanni, but the hairs seem to be a little 
finer and sparser. 
Four specimens are referable to this species, 3 in the Geolog. Inst. 
Koenigsberg Coli. (B 5199, and 2 without numbers) and one in the 
Klebs Coli. (K 905). The last is very defective as it lacks large portions 
of the legs and antennse. Mayr’s type (7521/235) in the Geolog. Inst. 
Koenigsberg Coli, is still in a fine state of preservation and in excellent 
position. 
Plagiolepis singularis Mayr. 
Plagiolepis singularis Mayr, Beitr. Naturk. Preuss. I, 1868, p. 38, Taf. I, Fig. 21, 9; 
Dalla Torre, Catalog. Hymen. VII, 1893, p. 173; Ern, Andre, Bull. 
Soc. Zool. France, XX, 1895, p. 82; Handlirsch, Foss. Insekt. 1908, p. 859. 
Mayr based this species on a single female specimen in the Menge 
Coli. It might be regarded as the female of P. klinsmanni notwithstand- 
ing its length of about 5,7 mm, since the females of the recent species of 
Plagiolepis are often considerably 1 arger than their workers, were it not 
that the pilosity is much less abundant and joints 3 — 5 of the antennal 
funiculi are much broader than long. I have not been able to find any 
specimens of this species in the collections I have studied. It is also 
possible that it is a species of Drymomyrmex (vide infra). 
- f“ 0 . f ■ , ;oi ‘ - f , gl 
Plagiolepis solitaria Mayr. 
Plagiolepis solitaria Mayr. Beitr. Naturk. Preuss. I, 1868, p. 40, cf; Dalla Torre, 
Catalog. Hymen. VII, 1893, p. 173; Ern. Andre, Bull. Soc. Zool. 
France, XX, 1895, p. 82; Handlirsch, Foss. Insekt., 1908, p. 859. 
This species was based by Mayr on a single male in the Coli. 
Menge. He admits that it may belong to one of The preceding species 
