42 



titer angustato, lateribus antice sat fortiter rotundatis 

 basin juxta rectis, angulis posticis rectis ; elytris oblongo- 

 parallelis, vix striatus (stria suturali postice et stria 

 reciirva except is), antice minus fortiter 5-seriatim punctatis. 

 Long. 2-2^ mm. 

 This is auotber anomalous little species. I cannot discover 

 any trace o£ the large setiferous punctures on its elytra. The 

 infuscation on the elytra when present is very obscure. I 

 possess one example in which there is a little infuscation round 

 the scutellum. This insect bears much resemblance to the pre- 

 ceding, but has fewer lines of punctures on the elytra (the 

 punctures themselves being considerably finer), the recurved 

 stria much longer, the elytra more parallel, and the thorax 

 differently shaped. The basal margin of the thorax is scarcely 

 narrower than the apical, the sides are regularly and rather 

 strongly rounded from the front nearly to the base where they 

 become quite straight and parallel to each other, and there is 

 no trace of puncturation across the base. 



I have found this insect in several places in the Port Lincoln 

 district, on swampy ground, and also on the banks of the 

 Torrens, near Adelaide. 



T. captus, sp. nov. Sat elongatus ; subdepressus ; nitidus ; 

 lividus, capite obscuriore, pedibus (nonnulis exemplis 

 prothorace etiam) dilutioribus ; antennis crassiusculis, 

 capite prothoraceque conjunctis paullo longioribus ; pro- 

 thorace sat fortiter transverso, postice evidenter angustato, 

 subtiliter canaliculate, lateribus rotundatis ante basin vix 

 sinuatis, angulis posticis distinctis obtusis ; elytris ob- 

 longis, stria suturali leviter ceteris obsolete notatis, stria 

 recurva nulla; utroque elytrorum punctis setiferis 2 in 

 disco et 4 juxta marginem notato. Long., 1^ mm. 

 This minute insect is no less anomalous than the preceding. 

 I cannot find any character to separate it from TacJiys (of 

 which it has all the facies) except that I fail to discover any 

 trace of a recurved stria ; at the same time I must admit having 

 failed to dissect the mouth organs satisfactorily. In colour 

 and size it must be very like Tachyta livida, Bates (described 

 from an Adelaide specimen, but quite unknown to me in 

 nature), but the structural characters are very different. In 

 one of my specimens there is a little infuscation about the 

 front of the thorax. 



I have taken this species in the Port Lincoln district and 

 also near Adelaide. One of the specimens from the latter 

 locality with the upper surface pitchy black, the elytra ap- 

 parently a little less depressed, and the antennae scarcely so 

 long as in the type, may possibly represent a closely allied 

 distinct species. 



