193 



!N'ew Zealand Ditoma sellata, Shp., described in the Transac- 

 tions of the Eoyal Dublin Society (1886). 



I met with a single specimen under the bark of a Eucalyptus 

 on Mount Lofty in December, 1885. 



D. obscurely sp. nov. Minus depressa ; piceo-nigra anteunis 



palpis pedibusque plus minusve rufis ; prothoracis lateribus 



valde explanatis minus fortiter serrulatis, elytris crasse 



punctulatis striatis ; interstitiis subplanis. Long., Ifl. ; 



lat., |1. 



The structure of the antennae head and thorax is almost as in 



D. pulclira, except that it is less strongly defined, the sides of 



the head being less dilated, the explanate margins of the thorax 



not quite so wide, and the serration of the same feebler. The 



elytra also are sculptured very similarly except that they are 



devoid of tubercles and of pencils of hairs, although otherwise 



the insect is similarly squamoso-setose. 



I have two specimens of this species, taken near Eoseworthy, 

 South Australia. 



D. perforata^ sp. nov. Sat depressa : elongata ; supra piceo- 

 nigra, subtus rufo-picea ; capite antice antennis palpis 

 pedibusque plus minusve rufis; prothoracis lateribus sat 

 fortiter serrulatis vix explanatis antice baud productis ; 

 elytris ad latera vix serrulatis, striatis, striis crasse rugu- 

 lose puntulatis. Long., \\ 1. ; lat., -f 1. 

 In this species the head is scarcely dilated in front of the 

 eyes, its sides running forward nearly in an even line, and the 

 front being widely and gently convex. The thorax is sub- 

 truncate in front, with the anterior margin, however, widely 

 and roundly (though gently) produced in the middle ; the base 

 is very little narrower than the front ; the length about equals 

 the width ; the sides are not distinctly explanate, but are cut 

 into about ten very distinct teeth placed rather evenl}?- along 

 their margin, except that the front two or three are smaller 

 than the rest ; the surface is even, and covered with coarse but 

 not deep puncturation, the punctures being much confluent and 

 the space between them tending to run into wavy lines. The 

 elytra are gently striate, each stria bearing a row of extremely 

 coarse but not deep punctures, which almost meet across the 

 interstices. The surface is sparingly clothed with fine short 

 erect set^e. 



I have seen about a dozen specimens of this insect, all taken 

 in the Adelaide district. 



D. parva, sp. nov. Sat depressa ; elongata ; piceo-nigra ; 

 capite antice, antennis, palpis, pedibus, humerisque 

 obscure rufis ; prothoracis lateribus vix explanatis, sub- 

 tilius serrulatis, antice sat fortiter productis ; elytris for- 



M 



