186 



-■apparently feeble caringe : in front of antennae with small, 

 dense punctures. Antennae thin, inserted about two-sevenths 

 from apex of rostrum ; two basal joints of funicle subequal 

 in length, third distinctly shorter, sixth and seventh trans- 

 verse. Prothorax more dilated posteriorly than usual, with 

 minute and rather distant punctures. Ehjiru unusually 

 wide ; with series of very large and somewhat distant punc- 

 tures or f ovese ; interstices (except on shoulders) carinated 

 throughout, and in places somewhat undulating, each with 

 a row of very minute punctures on each side ; siiture flat- 

 tened on basal half, somewhat rounded elsewhere. Meta- 

 stermim with rather large but irregularly-distributed punc- 

 •tures, each side piece with a row of minute punctures. Abdo- 

 men with rather large punctures on basal segment ; second 

 with a row of rather large punctures at extreme base and 

 small ones elsewhere ; third and fourth each Avith a row of 

 minute punctures across middle, but with a few irregular 

 ones at sides. Femora acutely dentate. Length, 5 mm. 



Hah. — Queensland: Cairns, Mossman River (Macleay 

 Museum) . 



A very robust species. The minute j^^otlioracic punc- 

 tures in conjunction with the unusually large elytral ones 

 render very distinct from all species of the allied genera 

 known to me. The second abdominal segment is unustially 

 small for Melantenus, being scarcely longer than either of 

 the following ones, but at its sides it is drawn backwards, and 

 is there noticeably longer. 



Melanteriosoma costatum, Lea, Tasmaniense, n. var. 

 Two specimens from Tasmania (New Norfolk «ind Ho- 

 Taart) differ from the typical form in having the prothorax no 

 darker than the elytra, and with the suture very slightly in- 

 fuscated only. The elytra also have the third, fifth, and 

 seventh interstices much less acutel}'^ costate, with the costa 

 of the third entirely absent from the basal half. 



Lyb.eba ampltcornis, n. sp. 



Dull-reddish-brown. Moderately clothed with stramine- 

 ous scales having a faintly-spotted appearance on the elytra, 

 and becoming rather long on the metasternum and abdomen. 



Rostrum slightly shorter than prothorax, moderately 

 curved, parallel-sided except for a slight incurvature in front 

 of antennas ; with small but distinct punctures in front, be- 

 coming larger and more or less confluent towards base, but 

 at base itself partially concealed. First joint of funicle dis- 

 tinctly longer than second, second as long as third and fourth 

 (Combined, fourth longer than third, but shorter than fifth, 



