410 Rev. H. Clark on the Dytiscidae 



testaceo marginatus, creberrime punctulatus ; elytra prothorace non 

 latiora, quam lata plus duplo longiora, pone basin sensim ampliata, 

 infra medium angustata, nigra, utroque prseterea seriebus tribus e 

 punctis nonnihil evidentioribus formatis, basi fascia insequali, extror- 

 sum latiore, non usque ad suturam continuata, macidisque pone medium 

 quatuor flavo-testaceis ornata, tribus prope marginem lateralem, quarum 

 prima mox pone medium, subrotunda, reliquis majore, secunda inter 

 medium et apicem, tertiaque prope apicem, parvis, ilia subovata, hac 

 triangulari et quarta inter medium et apicem, itidem parva, ovata, prope 

 suturam locata. 



The above is a transcript of Boheman's description, in his work on 

 new species of insects discovered during the voyage of the Swedish 

 frigate ' Eugenies,' 1851-1853. I am indebted to Mr. Janson for a 

 reference to this work. The species is unknown to me. 



7. H. femoralis, Boheman ('Eugenies, Resa, &c.,' Stockholm, 

 1858, p. 19). 



H. oblongo-ovalis, leviter convexus, niger, parum nitidus ; capite antice, 

 palpis, antennis, abdomine pedibusque testaceis ; protborace subtilissime 

 crebre pimctulato, utrinque late flavo-testaceo marginato ; elytris sub- 

 tiliter creberrime punctulatis, margine laterali maculaque disci exte- 

 rioris intra basin et medium lutescentibus ; femoribus posticis apicem 

 versus valde dilatatis, valide dentatis. 



Long. 4^, lat. 2\ millim. 



Patria Nova Hollandia {Sydney). 



Caput parum convexum, inter oculosr utrinque leviter impressum, 

 antice rufo-testaceum, rotundatum: protborax longitudine duplo et 

 dimidio latior, apice late leviter rotundo emarginatus, latei'ibus pone 

 apicem leviter rotundo-ampliatis, dein basin versus oblique dilatatis, 

 angulis anticis antrorsum prominulis acuminatis, posticis retrorsum non- 

 nibil productis ; superne paulo convexus, extrorsum late flavo-testaceo 

 marginatus : elytra protborace parum latiora, quam lata duplo longiora, 

 margine laterali maculaque ante medium disci exterioris parva sub- 

 rotunda lutescentibus, femoribus posticis extrorsum angulariter valde 

 ampliatis, ante apicem dente magno, lato, triangulari armatis. 



The above is condensed from Boheman's description. I do not 

 know the species. 



8. H. nigro-adumbratus, n. sp. 



If. subparallelus pimctatus, rufo-fuscus, capite flavo, thorace rufo-fusco, 

 lateribus flavis ; elytris fuscis vel rufo-fuscis, latei'ibus et sutura pallide 

 flavis. 



Long. corp. 1^ lin., lat. f lin. 



Subovate, somewhat parallel, punctate, rufo-fuscous : head very 

 sparingly and finely punctate, with two distinct anterior depressions, 



