INSECTS OF SAMOA. 



16. Prosoplus, sp. ? 



Three males from Upolu : Apia, x.1924 ; Malololelei, 2000 ft., 24.ii., 

 14-30.vi.1924. 



I have not been able to decide whether these specimens belong to an 

 already known species of the very difficult genus Prosoplus or not. 



Lamprosybra, gen. nov. 



(Ptericoptinorum.) 



Caput subretractile, inter antennas et oculos sat profunde sulcatum ; frons 

 subquadrata aut supra paullulo angustata ; genae mediocres lobis inferioribus 

 oculorum breviores. Oculi rude granulati-, supra subapproximati lobis inferiori- 

 bus magnis fere quadratis. Antennae corpore sesqui ($) vel parum ($) 

 longiores ; scapus brevis obovatus ; articuli 3 et 4 elongati, aeque longi, reliqui 

 breviores. Prothorax subtransversus, apicem versus leviter angustatus, 

 lateribus parum arcuatis subrectis, ad basin apicemque sulco transverso tenui 

 instructus. Scutellum apice rotundatum. Elytra subcylindrica, apice singu- 

 latim rotundata, nuda, nitida, basi apiceque exceptis profunde punctato-striata. 

 Pedes mediocres ; femora crassa, postica apicem segmenti 4i abdominis attin- 

 gentia aut superantia. Corpus supra fere nudum, nitidum, infra cum pedibus 

 tenuissime pubescens. 



Nearly allied to the genera Sybra and Mynonoma, differing from the former 

 in having longer hind femora, from the latter in having the prothorax shorter 

 and not cylindrical, and from both owing to the glossy and nearly glabrous 

 elytra. 



17. Lamprosybra sulcata, sp. n. 



Nigro-fusca, supra fere nuda, infra cum pedibus tenuissime griseo- 

 pubescens ; elytra viridiaenea, nitida. Frons subnitida, remote punctulata ; 

 vertex sublaevis punctis perpaucis impressus. Antennae fusco-brunneae, infra 

 breviter ciliatae, opacae, scapo obscuriore, articulis 5-11 ad basin griseo- 

 annulatis. Prothorax supra inaequalis, irregulariter punctatus, utrinque linea 

 albido-tomentosa ornatus. Scutellum obtuse rotundatum apice pallide 

 pubescens. Elytra ad basin pronoto tertia parte latiora, apice rotundata ; 



