312 MR. H. D. BADCOCK ON 



Opisthosoma — prosoma, fusiform, constricted at \ and with 

 oblique narrow white stripes commencing at sides of constriction. 



Note. — Description based on 2 $ from Bukit Besar and 

 Sungkei. Lengths 6*2, 6 - 3 mm. 



The following measurements are from the specimen 6 2 mm. in 

 total length : — 



1 c + tiO-9, f 1-2, p + til'8, m + ta 1-1 =5-0 



2. „ 0-6, „ 0-9, „ 1-3, „ 1-0 =3-8 



3 „ 0-6, „ 1-0, „ 1-4, „ 1-4 =4-4 



4 „ l'l, „ 1/9, ,y 2-1, „ 2-0 =7-1 



No ants accompanying. 



J . Myrmarachne biseratensis, sp. n. (Text-fig. 10.) 



Prosoma. • — (a) Length slightly > opisthosoma — p 0 + ti 

 + m 2 -f-ta, 2 . Greatest height and greatest breadth each — | length. 

 Caput — thorax. Front wall very slightly recurved and stepped 

 back at eye 2. Side walls strongly convex. Groove narrow and 

 slightly recurved. Thorax well rounded at sides and terminated 

 with almost square end of § full width. Rim strong. 



(6) Top of caput flat. Groove narrow and shallow. Thorax 

 rises slightly behind it and then falls with strongly convex slope 

 to end with strong concave rim. 



Text-figure 10. 



Myrmarachne biseratensis, sp. n., $. 

 a. Profile, b. Palpus, c. Sternum &c. 



Dark, especially on caput, but eye-frame traceable, black. 



Eyes. — 1st row straight by summits, 1 . 1 very close, 1 . 2 close. 

 2 = 11, 3 slightly nearer 2 than 4, and on upper tangent,. 

 4 slightly > 2. Eye square broader than long, 4 . 4 very slightly 

 > 2 2 and about = 4- rim. 



