20 BULLETIN OF THE 



sulcata, the sides tinged with reddish. Pronotum with the disk plane, the 

 lateral lobes at almost exactly a right angle to it, the angle rounded, the lobes 

 of equal height and length, truncate in front, broadly rounded beneath and 

 behind. 'Stridulating area of the male tegmina slightly infuscated, marked in 

 the female with a fuscous spot. Fore femora feebly armed beneath with a sin- 

 gle spine, middle femora with three spines. Last dorsal segment of male aljdo- 

 meu rather deeply and broadly emarginate. Anal cerci of male excessively 

 long, arcuate, and nearly as stout at base as the distal extremity of the slender 

 and weak femora, apically biramose, the upper arm the shorter, directed back- 

 ward and upward and somewhat incurved, compressed, tapering and bluntly 

 pointed, the lower at right angles to the first, directed downward and backward 

 and bent a little inward, subcylindrical, but compressed and terminating in a 

 constricted aduncate subhclicoid process. Ovipositor of female large, arcuate, 

 tapering toward either end, pointed, armed as in A. cornucervi Erunn. 



Length of body, male 13 mm., female 16 mm.; tegmina, male 20 mm., female 

 21.5 mm.; hind femora, male 11.5 mm., female 13.5 mm.; ovipositor, female 

 8 mm.; cerci, male 5.3 mm. 



This species is most nearly allied to A. cornucervi Brunn., to which it was 

 referred by Bruner doubtfully, but it differs in the chaiacter of the last ab- 

 dominal segment, and in the cerci, which are not toothed at the base and are 

 even more extravagant in form than in that species ; the fastigium of the 

 vertex is also very different. 



Chatham Island, 1 male, U. S. Fish Commission, 1888 ; Wreck Bay, Chatham 

 Island, 1 male, 1 female pupa, June, G. Baur; Indefatigable Island, 1 female, 

 U. S. Fish Commission, 1888. 



Subfamily PSEUDOPHYLLIN.^. 



NESCECIA (vTjcros, o'lKiO}), gen. nov. 



Allied to Meroncidius; of stout form. Head not prominently exserted ; 

 face broad, smooth, strongly appressed, the margins of the mandibles visible 

 beyond the sides of the clypeus; fastigium of vertex not extending beyond 

 the auriculate antennal scrobes, triangular, bluntly pointed, tulierculate at 

 base on either side, deeply sulcate and arcuato-declivent; frontal costa be- 

 tween the lower portion of antennal scrobes compressed ovate, separated from 

 the fastigium by a deep arcuation; antenna; twice as long as body, apex of 

 first joint with a rather small intero-posterior syiine. Pronotum broadly rounded 

 in front, the middle elevated to a slight tubercle, not at all produced posteri- 

 orly, but truncate; the lateral lobes simple, trapezoidal, the anterior angle sub- 

 rectangular, the lower margin straight and faintly obli([ue, the hind margin not 

 at all produced ; disk crosserl by two very distinct sulci, subequidistant from each 

 other and tlie margins. Prosternum Ijispinose; mesosternum olili([UL'ly and 

 broadly sulcate on either side from the centre toward either anterior outer angle. 



