86 
38. 
43. 
49. 
56. 
A REVISION OF THE GENUS PROMYRMECIA EMERY (FORMICIDAE) 
22. Head and thorax finely striate .. , 
3. Mandibles linear, almost as long as “head, as 
long as scapes, furnished with four large 
teeth interspersed with smaller teeth. Scapes 
extend to, or very mae’ Pee eal 
border . cd. pceeec ee 
External borders of mandibles convex .. 
39. Head and thorax striate .. .. 
4. Mandibles slightly longer than head, teeth z as 
in pilosula group. Scapes extend slightly 
beyond occipital border .. . 7 
External borders of mandibles concave. “Head and 
thorax finely striate-rugose .. 
5. Mandibles slender, slightly longer ‘than head, 
teeth small, hook-shaped and directed back- 
wards, Scapes extend to 4% ime border . 
Head and thorax finely striate .. .. . 
6. Mandibles slender, straight or very feebly 
concave, as long as, or slightly longer than 
head, five apical teeth erect, behind these the 
teeth, shorter, broader and directed back- 
ward, sawtooth-shaped. Scapes extend to 
occipital border .. 
External borders of mandibles straight or r feebly 
convex. Head and thorax strongly striate .. . 
7. Mandibles slightly longer than head, slender, 
almost parallel, five apical teeth large and 
erect, behind these the teeth obsolete, very 
short, directed backward, sawtooth-shaped. 
Scapes extend to occipital border . 
Key to SPECIES. 
. External borders of mandibles concave .. 
2. Head and thorax with large more or less obsolete 
striae: .. hs 
3. Black; dorsum. of. pronotum and epinotum 
and whole of node bright red; mandibles, 
clypeus and antennae reddish-yellow. Meso- 
notum smooth in middle, with some large 
shallow punctures, a few obsolete striae at 
sides. Node irregularly rugose. ese 12 
mm. 
*4. Head, thorax and petiole. blood. red, man- 
dibles and antennae reddish-yellow.  Pos- 
terior corners of head very smooth and 
shining. | Mesonotum Susan or 
obliquely rugose. 10-13 mm. : 
*5. Black; a large spot behind each eye, one 
on disc of pronotum and upper surface of 
node blood-red. Mandibles and antennae 
reddish. Mesonotum with feeble and oblique 
rugose. Node smooth. 10-13 mm... .. .. 
*From description only. 
37 
pilosula Smith 
42 
41 
cephalotes Clark 
48 
varians Mayr 
tepperi Emery 
66 
mandibularis Smith 
37 
12 
aberrans Forel 
formosa Wheeler 
haematosticta Wheeler 
