310 



MR. H. D. BADCOCK ON 



be identical ; the grounds on which I keep them apart provision- 

 ally are 



(1) Shape of sternum (text-fig. 9, a, b). — In M. lateralis legs 2 



are as close to one another as legs 1 ; in if. albicrurata 

 they are normal. 



(2) Spine pairs.- — albicrurata, p x no spines, ti x 4 prs., ti 2 2 prs. 



lateralis, p x 1 spine, ti t 5 prs., ti 2 3 prs. 



(3) albicrurata light in colour, lateralis dark. 



Of two specimens, however, which were much damaged and 

 cannot be certainly identified, I found in the first (collector's 

 number 4) agreement with albicrurata in (1) and (3) and with 

 lateralis in (2) ; while the other (collector's number 92 A) agrees 

 with albicrurata in (1) and (2) and with lateralis in (3). 



2 • Myrmarachne lateralis, sp. n. (Text-fig. 9.) 



Prosoma. — Length < opisthosoma = ti 4 + m 4 . Caput = thorax. 

 Caput hardly stepped back at eyes 2, well rounded at rear corners. 

 Bridge rather broad at top and only very slightly constricted 

 below. Thorax spreads out behind to widest at 3, well rounded. 



Groove shallow but broad, with rim thin. Thorax considerably 

 lower than caput. 



Colour dark, almost black on caput, strong wedge of white hairs. 



Eyes. — 1st row procurved, intervals slight but perceptible. 

 1 = 3 times 2. 2.3 = 3.4, 3 very small and rather above inner 

 tangent to 2 . 4. 4 = 2. 4.4 > 4-rim. Eyes 2 and 4 rather 

 prominent. 



Falces. — Length = | caput, nearly horizontal, sides subparallel, 

 slightly convex outside at distal end. On side view straight below, 

 strongly convex above, with angle at ^ to ^. Teeth 7 or 8, largest 

 at centre, falling in size both ways. Lower 8 or 9 close, largest 

 at centre, smaller than upper. Moderate greyish outer scopula. 

 Inner a few dark hairs. 



Maccillce, labium = cornuta. 



Palpi. — Spring from base of maxilla. Tr = width of maxilla 

 at narrowest; femur flattened, < ^ caput, reduced and rounded at 

 ends, greatest width = ^ length, p very slightly larger than tr, 

 -expands distally. Ti and ta form flat plate, hairy especially on 

 inner edge. Ta > f > ti, but differences not great. 



Legs.— 4.1.3.2. 

 1st. c claviform, length < 2 breadth, brawn. 



tr < width of c, light with strong dark side-markings, 

 f long, claviform, light with dark side-marks very broad at 

 base. 



p > ^ ti, light with dark side-marks, 1 spine below at •§. 



ti . < f , light with dark side-marks ; spines 5 pairs, or 5 fore 



and 6 aft, the 3rd considerably strongest, 

 m much < ti and darker, 2 spine pairs of which 1st is very 



strong. 



ta = h m, dark at base, light at tip. 



