1901.1 251 



truncate; mandibles rufescent throughout, distinctly bideiitate ; joints of maxillary 

 palpi subcylindrical. Antennce of ? with joints 11 — 15 stramineous. Thorax 

 black ; pronotum, lines before and beneath radix, and two indistinct punctures before 

 soutellum, fiavous ; areola represented by a tubercle, posterior area with strong 

 lateral costte. Scutellum finely punctate, black, its posterior face stramineous ; 

 acuminately arcuate. Abdomen black, with no metallic reflection ; the petiole not 

 tnuisually explanate apically, its central area aeiculate in both sexes ; gastrocaeTi 

 broad and deeply impressed ; terebra slightly exserted beyond apex of abdomen. 

 Legs bright fulvous, coxse and trochanters almost entirely black ; anterior femora 

 and tibiae infuscate above ; all the tarsi entirely fulvous. Wings subhyaline, with a 

 slightly darker apical fascia ; all the nervurcs piceous ; areolet subdeltoid, not 

 petiolate. Length, $ , 16 mm. 



The insect above described differs from the type form in the immaculate scape, 

 mesopleurae, coxte, and trochanters, and in having the hind femora, tibioe, and tarsi 

 unicolorous. 



A single example was bred from a pupa of Apatura Iris on July 

 12th, 1901, by Mr. J. F. Musham ; the larva was taken in the New 

 Forest. The parasite emerged through " a circular hole 1/8" dia. in 

 the upper left half of the thorax, not quite in the centre ; the pupa 

 was only slightly discoloured, much less so than when the host 

 emerges. The larva before pupation was very small and sluggish, and 

 its right process was only half as long as the left ; oviposition of the 

 parasite took place in the autumn, before hibernation, when the larva 

 was in its earliest stages." 



It is very rare on the continent ; M. I'Abbe Berthoumieu records 

 it only from Hungary ; Tischbein bred it from the above host. 



Ipswich : September, 1901. 



A NEW G-ENUS OP HAWAIIAN GEOMETRIDJl. 

 BY E. C. L. PEEKINS, B.A. 



In this Magazine (ante p. 215) I described a new genus of 

 Oeo7netridce from the Hawaiian Islands, and suggested that Scotorij- 

 thra megaJoplnilla, Meyr., of which only the $ is known, might be 

 congeneric with this. The genus now characterized is much more 

 likely to include the above-named species, and my former suggestion 

 is no doubt erroneous. The following characters will readily separate 

 the new genus from Scotorythra and its allies. 



ACEODEEPANIS, gen. nov. 



Antennse of c? formed as in Scotorythrn, but with the pectinations unusually 

 short, only three or four times as long as the widest part of the shaft. Whole body 

 beneath densely hairy. Tcrmen of fore-wings excised below the apex so as to be 

 distinctly falcate. Hind-wings conspicuously hairy from the dorsal margin to the 



