Coleoptera, Part I. 145 



This and the following species are both larger than porcatus 

 (described as 2^ mm. in length), and both have the elytral 

 interstices considerably wider than the striae, and with very 

 different clothing ; fici (erroneously referred to Hylesinus) has a 

 very different club. 



Hylesinus interstitialis^ n. sp. 



Colour much as in preceding species, except that the reddish 

 parts are rather less conspicuous. Upper surface glabrous, ex- 

 cept for some short, pale, stiff setae on apical half and sides of 

 elytra ; face with fine pubescence ; under surface and legs with 

 moderately dense and not very short pale pubescence. 



Head with very dense and rather small, but round and 

 clearly-defined jDunctures. Protliorax about once and one-third 

 as wide as long, sides strongly rounded in front, but almost 

 parallel on basal half, base feebly bisinuate ; basal half with a 

 very feeble median line ; sides, except at apex, very narrowly 

 margined ; with dense, round and clearly-defined, but not very 

 large punctures. Elytra oblong-cordate, apex conjointly mucro- 

 nate ; striate-p\mctate, punctures more or less round and con- 

 fluent, causing the interstices to appear finely crenulated ; these 

 flattened, much wider than striae, and wdth numerous clearly 

 defined punctures. Under surface with dense but partially con- 

 cealed punctures. Front coxae separated almost as widely as 

 the middle pair ; four hind tibiae coarsely serrated. Length 

 3J-5 mm. 



Hah. — Queensland : Cairns (Macleay Museum, H. Hacker, E. 

 Allen). 



Although, at a glance, close to the preceding species, differs 

 from it in the shape, clothing, punctures, antennae, separation 

 of front coxae, etc. 



The funicle has the tJrst joint stout and about half the length 

 of the rest combined, the second is fairly distinct, but the 

 others are so strongly transverse and close together that it 

 is difficult to decide as to their nimiber, more especially as the 

 apical one is closely joined to the club. Under a quarter-inch 

 lens, however, and in certain lights, the funicle can certainly be 

 seen to be seven-jointed. The scape is the length of the 



