276 Mr. F. P. Puscoc on neiv Oenera 



posticcquc bisulcato, utrinquc fortiter dentato, anticc iti medio 

 tuberciilis duobus nitidis subapproximatis instructo ; scutello sub- 

 orbiculari ; elytris remote puctulatis, in medio depressis, fascia 

 indcterminata albida notatis, singulis tuberculis quatuor, tribus 

 basalibus, uno antemedio, pone medium parte elevata literam X 

 (lam>)da) simulante signatis ; coi-pore infra pedibuscjue griseo- 

 piibescentibus, his saturatiorc annulatis ; tibiis anticis intus baud 

 dentatis ; tarsis anticis, art. ultimo excepto, subnigris. Long. 



lin. 



1 fab. Sierra Leone (Sherbro' Island). 



The absence of the tooth on the inner edge of the anterior 

 tibiai, and the presence of a horn in front, as in Prosopocera, 

 seem to indicate that this species should scarcely be referred 

 to Ancylonotus, For tlie present, however, I am content to 

 consider it a somewhat aberrant species of the genus. My 

 S])ecimen is a male ; but, from a note, I see that the female 

 has much shorter antenna, although the third joint bears the 

 same relative proportion to the two following. 



Disterna Mastersii. 



D. saturate cinnamomca, vix nitida, lineis maculisque fulvis c pube 

 adprcssa effectis ; capite utrinquc lineis duabus verticalibus, una 

 ante, altera pone oculum sitis ; antennis tenuibus, infra vage 

 ciliatis ; prothorace valde transverso, disco baud tuberculato, Hneis 

 transversis ornato ; scutello semicirculari, densius pubescente ; 

 eljtris cuneiformibus, singulis bicostulatis, basi bituberculatis, 

 apicibus bispiuosis, spina extoriore longiore, in medio piinctis nudis 

 plurimis notatis, maculis plus minusve contiguis ornatis ; corpore 

 infra nitido, latcribus fulvo maculatis. Long. -41-51 lin. 



Hob. Queensland (Wide Bay). 



This species, with D. jmmila and D. cuneafa, seem to be 

 intermediate between Ztigocera and Di'sterna, having the nar- 

 rower prostcrnum of the former, but with its anterior portion 

 abruptly vertical and a little excavated as in the latter ; yet 

 Lacordaire places them in different groups. Zi/cjocera was 

 originally characterized by Erichson (Wicgm. Arch. 1842, 

 p. 224) ; but as it was in German, and after the Latin descrip- 

 tion of Z. canofia, it has been generally overlooked. Dr. Ilowitt 

 informs me that the latter is identical with the species I sub- 

 sequently described under the name of Z. hiqubn's. Tlie tvpe 

 of Disterna, J. Thoms., is Z. bifnnciata, Pasc., erroneously 

 printed '^ infuscata^^ in the ' Systema Ccrambycidarum ' (p. 88). 

 I owe my specimens of the well-marked species described 

 above to Mr. Masters, to whom 1 dedicate it. 



