122 Transactions. 



Art. XIX. — New Lepidoptera (Geometridae). 

 By Louis B. Prout, F.E.S. 



Communicated by W. George Howes, F.E.S. , F.L.S. 



[Read before the Otago Institute, 4th November, 1913.] 



Xanthorhoe declarata n. sp. 



(J. 36-38 mm. Very closely related to X. clarata Walk., but ap- 

 parently quite distinct. Differs in the greyer brown (not ochreous) 

 markings of the forewing and the white (not yellow or ochreous) hindwing. 

 Forewing with the second subbasal white fascia less strongly curved ; discal 

 dot enlarged, touching the first post-discal fuscous line ; outer boundary 

 of median area less deeply inbent on fold ; white subterminal line less 

 deeply dentate. The first fuscous post-discal line, though too variable 

 in both species to give a constant distinction, is, as a rule, sharply out- 

 angled between veins 6 and 7 in clarata, but in declarata only very obtusely 

 bent or very gently curved. The hindwing beneath differs still more 

 markedly : in clarata its basal half, though partly dark-marked, is en- 

 croached upon by a deep and large pale prong running inwards at vein 5 

 as far as the discocellulars (in some, measure even to the base) and an- 

 other on the fold ; in declarata the basal half is much more uniformly dark- 

 marked, its distal edge only forming two very moderate inward bends. 

 Abdomen also whitish, dorsally with pairs of rather dark spots. 



From cataphracta Meyr., which is also related, declarata differs especially 

 in the angulation of the distal edge of the median band. 



Ben Lomond, 12th February,' 1912 ; 4 <$ (including the type). Queens- 

 town, 26th January, 1912 ; 1 $, kindly presented by Mr. W. G. Howes. 

 Other examples are in his collection. 



Tatosoma apicipallida n. sp. 



<J$. 33 mm. Face and palpus blackish dusted with bright red, the 

 palpus also mixed with whitish scales and with the tip white. Thorax 

 and base of abdomen similarly coloured, abdomen otherwise grey, edged 

 with black at the incisions. Forewing whitish-grey with pink reflections, 

 basal one-third and an apical patch mostly whiter ; a small basal patch 

 of black and bright-red scales produced along posterior margin to \ ; 

 the lines formed of accumulations of blackish scales sprinkled with 

 bright-red ones ; three or four faint waved lines between basal patch and 

 median area, followed nearly at middle of wing by stronger double line 

 (proximal edge of median area) bending outward in cell, then inwards 

 as far as submedian fold, then again outwards, crossed by dark marks at 

 costal, median, and submedian veins; cell-spot present; distal part of 

 median area occupied by three dark strongly dentate lines which run 

 nearly parallel with the preceding but diverge somewhat in costal region 

 and enclose some dark shading ; these lines also somewhat dark-marked 

 on submedian vein ; pale area at apex enclosing a small dark subapical 

 patch on costa ; a terminal series of double dark dots, thick and somewhat, 

 elongate : cilia apparently dark grey with lighter line at base (defective). 



