3fi4 MONOGRAPH OF THE GENUS SYNTHEMIS 



twigs or stalks of fera and grass that fringe it. It does not 

 experience quite as much difficulty in climbing as do the larvse 

 of S. eustalacta and S. niacrostigina; this is perhaps due to its 

 being free from slippery mud. One or two have climbed straight 

 up out of a deep aquarium and emerged. 



In appearance and shape, there is great similarity between 

 the nymphs of *S'. eustalacta and 31. guttata. There are, however, 

 the followiug important differences — the abdomen of M. guttata 

 is .slightly longer, and the hindlegs shorter than in S. eustalacta. 

 Tliere is a conspicuous flat semicircular plate projecting in front, 

 between the eyes, in M. guttata (see Plate viii., fig.5). The whole 

 insect is comparatively clean, (from its habit of living) and the 

 abdomen shews a distinct colour-|)attern of light and dark brown; 

 each segment carrying a dorsal stripe and a large irregular spot 

 on each side, of a pale colour. The body is less hairy than in S. 

 eustalacta, the hriirs of the segment d ridges being few and very 

 fine, generally 4-5 on each side and none on dorsum. 



Labium : mentam slightly more triangular than in S. eusta- 

 lacta; the median lobe with a distinctly protruding central angle, 

 as in H. macrostigma; mental setce, 5 primary, and 7-8 secondarj'; 

 lateral lobes with six stiff lateral setae, and a sharp terminal hook; 

 distal margin with 6-7 rather flat rounded teeth, the largest 

 being 02 mm. wide by 1 mm high (Plate ix., fig. 4). Anal 

 appendages: superior 1 3 mm., distinctly cu7-ved doiomvards 

 at tip; two inferior 1'4 mm., also curved downwards slightly; two 

 lateral OS nun , straight. 



Types: Coll. Tillyard(Leur.i, Blue Mountains). 



2. Mktathemis nigra Tillyard. (Plate v., fig.9). 



Tillyard, Proc. Linn. Soc. K S.Wales, 1906, p. 489. 



Since publishing the description of this species, I have received 

 from Mr. F. P. Dodd, of Kuranda, a pair of this species which 

 differ in some respects from the type. These more than ever 

 convince me of the absolute distinctness of this species from M. 

 guttata. The following short description is appended for com- 

 parison : — 



(J. Total length 50, abdomen 38, hindwing 33 mm. 



