new Ants from Australia. 429 
Myrmecia LutTpa, sp. n. 
%. Length 15-20 mm. (without mandibles) ; length of 
mandibles in largest specimens 3:9 mm. 
Antenne, thorax, legs, and petiole obscure yellow-ochre in 
colour ; mandibles, except teeth which are tipped with black, 
a brighter yellow. Head dark chocolate-brown, sometimes 
nearly black ; gaster black or, at least, very dark brown. 
Very slender, similar in form to gracilis, Em. Head 
small, narrowing considerably behind eyes, smaller aud with 
more rounded angles than in nigriceps, Mayr (which it 
resembles somewhat in colour). The head is narrower 
behind than in either vindex or nigriceps, even in the largest 
% 8, where in all three forms the head is more massive 
proportionately. 
The first node in largest % % is longer than the stalk, in 
the smaller about equal. Underneath in front is a small 
tooth *. 
Head longitudinally rugose, but beyond the level of eyes 
the ruge have numerous cross-lines, and the sculpture 
becomes almost reticulate-punctate. The sculpture of the 
head is much more superficial than in nigriceps. Sculpture 
of pronotum also much more superficial than in nigriceps ; 
that of the mesonotum variable, in most specimens it is 
transversely striated, but in one or two from the same 
colony the striation is longitudinal, and in others the 
segment is almost smooth. 
Ludlow, W. Australia (Clark, nos. 2 and 5). 
Type W.C.C. coll. 
Intermediate between gracilis and nigriceps. 
The ants of the genus M/yrmecia, sometimes called “ Bull- 
dog ”’ ants, are also known as “Jumpers.” Mr. Clark has 
found that some species can leap a distance of three or four 
inches. 
Myrmecia harderi, For., race SWALEI, st. n. 
%. Length (without mandibles) 9°0 mm.; length of 
mandibles 1°3 mm. 
Deep black; mandibles yellow, tinged with brown along 
their apical half. Thorax and petiole light red, legs dark 
brown, tarsi lighter. Antennz missing, except the nine 
terminal joints of the left funiculus, which are dark brown. 
Postpetiole and gaster with a faint blue metallic sheen. 
Body and legs with a fine pale pilosity, most abundant on 
* In vindex and ngriceps the first node is conspicuously longer than 
the stalk in all sizes of the $. In lutea this node in profile arises rather 
more abruptly, and is less evenly rounded above than in vindex, 
