A. C. OUDEMANS, NOTES ON ACABI. 201 



Nympha II. (Fig. 1). Length 408 ^. Colour pale 

 with brownish legs and shields. Shape somewhat elongate 

 inverse lyriform, widest between legs II ard III, narrowest 

 between legs III and IV, again wider behind legs IV ; posteriorly 

 rounded with small median semicircular incision. Texture 

 smooth on the shields ; weak skin widely striated. 



Dorsal side (Fig. 1). Anterior shield smwll, 

 oval, anteriorly truncate, posteriorly rounded, reaching a line 

 which may be drawn through the posterior edges of trochan- 

 teres II. There are two posterior shields, flanking the 

 posterior incision ; they are more or less triangular, inclined 

 towards each other. Hairs: no vertical hairs ; one pair not 

 longer than the narrowest width of the body behind the anterior 

 shield ; two pairs of ditto on the posterior edges of the two 

 posterior shields ; moreover on the dorsum 7 pairs of extre- 

 mely minute hairs as shown in the figure. Nephridial 

 openings on a line with distal end of femora IV. 



Ventral side. (Fig. 2) E p i m e r a I free. Epimera III 

 shorter than trochanter III ; epimera IV with proximal external 

 epiraerite, and distal external ditto, of which th'^ first half is 

 a square. Anus touching posterior incision. Externally of 

 epimera I and II and internally of epimera III and IV a 

 narrow coxal plate. Hairs: lateral hair externally of 

 epimera III short, about as long as epimera IV. A little before 

 and internally of it a shorter smooth hair, as long a"^ epimera 

 III. Posteriorly to the sides of the incision a short hair, not 

 longer than anal split. Moreover .5 pairs of extremely mi'^ute 

 hairs, as shown in the figure. 



M a n d i b u 1 a seen from above, triangular, pointed, narrow. 



Maxillae (Fig. 2) with a median minute tubercle. Palps 

 usual, biarticulate. 



Legs usual, short and thick ; almost equal in length ; 

 shorter than the narrowest width of body. 



Male. (Fig. 5). Length 464 fx. Colour brown witH darker 



