80 ORTIIOPTERA 



thorax somewlmt ferruginous. Head punctured on the vertex ; 

 antennae at least two and a half times the length of the insect ; labial 

 palpi with the terminal joint swollen at the end ; maxillary palpi long, 

 the three last joints cylindrical, the last longest, gradually clubbed at 

 the end. Thorax punctured, with some small smoothish places in the 

 middle, the lateral margins somewhat thickened. Hind legs nearly 

 twice the length of the insect ; tibiae quadrangular, broadest behind, 

 the edges armed with spines coming out alternately ; spines very 

 strong and sharp. (White.) 



Length of body (exclusive of appendages), 2—22 inches. 



North Island, not south of the Waikato District. 



D. (?) RUGOSA. BuUer, Trans. N.Z. Imt., 1870, p. 36, pi. U, f. 1 

 and f. 3. 



Intermediate in size between D. heteracantha and H. megacephala. 

 The extreme length of the body is an inch and three-quarters, the 

 thoracic shield measuring half an inch in length by three-quarters in 

 width (following the curvature). Although a male specimen, the 

 head is very small and rounded, measuring only half an inch in 

 length by three-eighths in width. The eyes are large and very 

 prominent ; the antennae comparatively short, measuring scarcely four 

 inches. Femur one inch ; tibia one inch ; tarsus and claws half an 

 inch. The edges of the thoracic shield are raised, and the surface is 

 deeply punctured and indented. The posterior edges of the dorsal 

 plates are raised, and the lower ones have a fringe of hard papillae 

 along their outer margin. All the plates are more or less punctured, 

 and the whole surface presents a rovghened appearance, which at once 

 distinguishes the species from D. heteracantha, to which it more nearly 

 approaches. 



Head, thorax, and body bright reddish-brown, the edges of the 

 plates darker; thoracic shield and tw^o succeeding plates marked with 

 black. Antennse and legs yellowish-brown, the joints of the latter 

 spotted with black. Under-parts yellowish-brown, darker on the 

 edges of the abdominal segments. (Buller.) 



Wanganui District. 



Geniis-HEMIDEINA. 

 TValker, 

 Body long, convex, shining, wingless, nearly cylindrical, generally 

 smooth. Head large, generally a little broader than the prothorax, 

 very convex above, slightly prominent between the antennae. Palpi 

 long, slender. Antennae very long, generally slender. Prothorax 

 slightly transverse; border generally slightly retiexed. Abdomen 



