179 



and prominent. Antennae moderately long, second joint not 

 much shorter than third, the others to tenth somewhat longer, 

 eleventh somewhat acutely pointed and distinctly longer than 

 tenth. Prothoraoc distinctly longer than wide, front portion 

 somewhat dilated, sides strongly constricted towards base, 

 median line rather wide and shallow; with large but shallow 

 punctures, each with a central pit, but about apex and sides 

 with smaller punctures. Elytra rather long, almost twice the 

 width of base of prothorax, parallel-sided to near apex; with 

 close-set rows of large deep punctures, becoming much smaller 

 posteriorly. Length, 4-4|.mm. 



J{ab. — Queensland: Cairns district, five specimens 

 trapped by seeds of Pisonia brunoniana (F. P. Dodd). Type, 

 I. 6735. 



Differs from concolor in having longer antennae, with 

 the apical joint not semidouble, head without distinct punc- 

 tures, prothorax narrower, with median line less impressed, 

 and the lateral constrictions deeper, elytra with rows of 

 punctures closer together, and as rows continued longer, and 

 with somewhat shorter legs. From victoriensis (which has 

 very similar antennae) it differs in being decidedly narrower, 

 prothorax much less dilated in front and with different punc- 

 tures, and elytral punctures considerably larger and in more 

 regular rows. 



Trichananca nigripennis, n. sp. 



Flavous or brownish-flavous ; elytra black or blackish, 

 with a vague bluish gloss. Clothed with short, depressed, 

 ashen pubescence, and in addition with numerous long, erect, 

 dark hairs. Length, 4-5 mm. 



Hab. — Northern Territory: King River (W. McLennan). 

 Type, in National Museum; co-type, I. 6757, in South Aus- 

 tralian Museum. 



Structurally very close to the preceding species, but 

 elytra entirely dark, and with rather more elongated 

 punctures. 



The known species of the genus may be thus 

 tabulated : — 



Elytra entirely dark nigripennis 



Elytra at most partly infuscated. 



Apical joint of antennae semidouble concolor 



Apical joint not semidouble. 



Head with distinct punctures between eyes ... victoriensis 

 Head without distinct punctures pisoniae 



XYLOPHILIDAE. 



This family is represented by a great number of species 

 in Australia, but they are usually very rare in individuals; 

 unlike those of the allied family Anthicidae the individuals 



