19 XKW ZEALAND HYKHHIDAE. 



Smaller and rather less rotundate than the other members of this Bection. 

 The remarkable palpi, if quite natural, as they Beem to be, cannot well be 

 mistaken for any ordinary form. 



Length, 1! lines : breadth, 1 tine. 



Mount Maungatua, Otago. Mr. S! W. Fulton: two individuals. 



3157. Synorthus mandibularis sp. nov. 



Glossv. aeneo-niger, legs and 1st antenna! joint rufous, remaining joints 

 infuscate, tarsi testaceous. 



Head with some slender greyish hairs, rather large, the forehead rounded, 

 not margined ; it is finely, distinctly, and closely punctured, but nearly 

 smooth behind. Thorax with acute and slightly prominent anterior angles. 

 its apex with slender margins near the angles only ; its punctation finer than 

 that of the head, and apparently absent on some parts. Elytra with ir- 

 regular, rather shallow, and not close punctures, and appearing slightly 

 coriaceous. 



Tibiae with fine flavescent setae, the anterior nearly straight, the others 

 moderately arched externally ; tarsal appendages well developed. Eyes 

 only slightly prominent, rotundate behind, truncate in front. Mandibles 

 thick, curvate, and acute at the extremity as examined from above ; when 

 carefully examined from the front they are seen to be minutely tridentate, 

 though appearing nearly truncate, at the apex. Antennae with the last 

 5 joints enlarged, 9th and 10th transverse, 3rd nearly the length of the 

 following 3 taken together ; these 3, though longer than broad, are not 

 elongate. 



Underside shining, piceous, with numerous slender pale brassy setae. 

 Metasternum distinctly but not closely punctured, the ventral segments 

 more finely and closely, the 5th even more closely. Maxillary palpi with 

 broadly ovate terminal joints, truncate at the apex. 



Differentiated by the small size and glossv bronzed surface. S. mixtus 

 can be distinguished by its peculiar palpi. 



Length, 1| lines: breadth. 1 line. 



.Mount look, at an elevation of 2,500ft. A solitary individual found 

 by Mr. T. F. Cheeseman, January, 1909. 



3158. Synorthus laevigatus sp. nov. 



Glabrous, very glossy, black, apex of thorax and extremity of elytra 

 slightly rufescent, legs Eusco-rufous ; tarsi, palpi, and antennae fusco-tes- 

 taceous, the basal joint of these last rufous. 



Head moderately convex, the forehead broadly rounded and rather 

 sharply defined, but not margined except near the antennae ; there are a 

 few line indistinct punctures near the sides. Thorax with some scattered 

 line punctures, .interior angles acutely rectangular, its sides not perfectly 

 straight, yet hardly perceptibly curved. Elytra very slightly depressed 

 and pointed just at the apical margin, their punctation distant and obsolete. 



Eyes only slightly prominent. .Maxillary palpi with broad terminal 

 articulations, obtuse or subtruncate at the extremity, and somewhat con- 

 cave or flattened. Tibiae with slender greyish setae, the anterior nearly 

 straight, gradually narrowed towards the extremity, without tarsal fur- 

 rows. Antennae rather short, the club 5-articulate ; joints 8-10 evidently 

 transverse, 7th subquadrate, rather smaller than 8th but broader than 

 the moniliform 6th, 4th and 5th longer than broad but not elongate, 3rd 



