338 



the species whose third and fourth abdominal segments have 

 each two or more rows of punctures (on the co-type these 

 segments have each a single row of punctures across middle) ; 

 and punctures on metasternal episterna not continuous 

 throughout (on the co-type they are continuous). Never- 

 theless the species which I described as pardalis (22) appears to 

 agree with the co-type in all other essential features, and, as 

 noted under some of the preceding species, the interruption, 

 or otherwise, of the punctures on the episterna appears sub- 

 ject to variation, and I previously attached too much import- 

 ance to it. 



Tyrt^osus imitator. Lea, var. norfolcensis, n. var, 

 A specimen, from Norfolk Island, differs from the type 

 in having the punctures on the elytral interstices considerably 

 smaller, the elytral scales distinctly narrower, the tibiae more 

 dilated at apex, and the femora still more feebly dentate. 



Tyrt^osellus alternatxjs, n. sp. 



Blackish, in parts obscurely diluted with red ; antennsey 

 tibise, and tarsi reddish. Moderately densely clothed with 

 adpressed scales, interspersed with stout suberect ones. 



Head with dense partially - concealed punctures. 

 Rostrum moderately stout, sides feebly incurved to middle ; 

 basal half with coarse more or less concealed punctures, else- 

 where with smaller but clearly-defined ones. Antennae in- 

 serted about two-fifths from apex of rostrum. Prothorax 

 moderately transverse, sides moderately rounded, apex more 

 than half the width of middle; with dense round punctures; 

 with a feeble median carina. Elytra oblong-cordate, parallel- 

 sided to beyond the middle; with rows of large partially- 

 concealed punctures, becoming smaller posteriorly; third and 

 fifth interstices lightly but distinctly elevated, the seventh less 

 noticeably so. Under-surface with fairly dense and large 

 punctures; quite as large on third and fourth segments of 

 abdomen as elsew^here, but much denser and smaller on apical 

 segment. Femora edentate, hind pair extending almost to 

 apex of elytra. Length, 3 mm. 



Hah.—^ew South Wales: Tweed River (W. W. 

 Froggatt) . 



Readily distinguished from other species by the elevation 

 of the alternate interstices. On the type (probably a male) 

 the depressed scales are mostly of a dingy greyish-brown or 

 obscure-fawn, but in some lights on the elytra they appear 

 to have a distinct purplish gloss, especially on a large medio- 

 basal space; from other directions, however, this gloss is not 



(22)Proc. Linn. Soc, N.S.W., 1902, p. 417. 



