316 



S. costatus, Blackb. I believe this species to be identical with 

 Illestus productus, Reitt., which will therefore stand as follows 

 Sj^aractus (Illestus) productus, Reitt. 

 S. costatus, Blackb. 



PHORMESA. 



P. {Ditomo?) torrida, Blackb. This species is not a true 

 Ditoma (vide supra). 



P. thoracica, sp. nov. Minus depressa ; sat opaca ; ferruginea, 

 capite pronoti disco et elytrorum maculis numerosis (his 

 fascias 4 indeterminatas formantibus) obscure fuscis ; pro- 

 thorace sat fortiter transverso, postice quam antice fere 

 duplo latiori, supra crebre fortius granulato - ruguloso, 

 utrinque bicostato, costis exterioribus integris (interioribus 

 prope marginem anticum introrsum subito versis et hie inter 

 se fere conjunctis, postice introrsum sic ut laquea singula 

 formant versis), lateribus irregulariter crenulatis sat arcuatis, 

 angulis anticis fortiter prod uctis sat acutis posticis retrorsum 

 inclinatis anguste obtusis ; elytris singulis 5-carinatis, inter- 

 stitiis crasse biseriatim punctulatis. Long., 2^ — 2i 1.; lat., 

 %—U^ 1. 

 In general appearance much like P. torrida, Blackb., from 

 which it differs chiefly by the costse of its pronotum and elytra 

 less sharply defined, its protborax very much more strongly 

 narrowed in front and the hind angles of that segment obtuse 

 (they are very sharply acute in torrida). Several species of 

 Phorinesa more or less resembling this one have been described 

 from the Malay Archipelago, itc, but the descriptions of them 

 are too slight to allow of confident identification, — not one of 

 those known to me referring (e.g.) to the angles of the pro- 

 thorax. 



Tropical Australia (Port Darwin). 

 P. Grouvellei, sp. nov. Sat depressa ; sat opaca ; picea, capite 

 antice prothoracis lateribus antennis pedibusque ferrugineis; 

 prothorace sat fortiter transverso, antrorsam leviter angus- 

 tato, supra confertim minus fortiter punctulato-ruguloso, 

 utrinque bicostato, costis ut prjecedentis (P. thorncica), 

 lateribus leviter sparsim crenulatis fere rectis, angulis 

 anticis modice productis sat acutis posticis acute rectis vix 

 retrorsum inclinatis ; elytris singulis 5-carinatis, interstitiis 

 biseriatim granulatis. Long., If 1.; lat., y^ 1. 

 Differs from the previously described Australian species of 

 Phormesa by the uniform colour of its elytra and by the sculp- 

 ture of the intervals between the elytral costae consisting of 

 rows of small granules. Its prothorax is very much less nar- 

 rowed in front than is that of P. thoracica, and very much more 



