144 THE CARABIDAE OF TASIIAXIA, 



IS (17) Elytra substriate. striae 2-4 obsolete on apical declivity; anterior discal 

 puncture near fourth stria. Length, 4.2 mm. .. .. coxi SI. 



19 (41 Elytra with third puncture of third interstice distant from apsx, not 

 on apical declivity. 



20 (231 Elytra with striae 1 — " deeply impressed; interstices convex. 



21 (221 Colour black, legs piceous. Length, 4 mm aiistriniis SI. 



22 (21) Colour piceous-testaceous. femora testaceous, tibiae light brown. 

 Length, 3.8 mm sitnsotii 'BXa.cV.h. 



23 (201 Elytra striate on disc, striae becoming obsolete towards sides; inter- 

 stices depressed. 



24 (27) Elytra piceous-black, with a testaceous, post-humeral macula on each 

 elytron . 



25 (26) Prothorax with basal angles acute, preceded by a sinuosity. Length, 

 3.4 mm longinoiatus SI. 



26 (25) Prothorax with basal angles obtuse, not preceded by a sinuosity. 

 Length 3.7 mm brevinotalns SI. 



Elytra black, without post-humeral maculae. 



Prothorax with sides obliquely narrowed to base; basal angles marked 



and with border prominent. 

 Elytra subdepressed, sides lightly rounded. Length, 3 mm, 



tiitens Putzeys. 

 (29) Elytra convex, sides strongly rounded. Length, 3.8 mm 



blackburni SI. 

 Prothorax with sides evenly rounded to base; basal angles obtuse, not 

 marked nor with border prominent. Length, 3 mm, 



tasiiianiae Blackb. 

 Prothorax with base lobate. 



Prothorax with basal angles prominent, triangular, base truncate 

 .behind them on each side of lobe; each elytron with six punctate 



striae. Length, 4 mm baldieiisis Blackb. 



3-1 (331 Prothorax with basal angles not prominent and triangular, base sloping 

 behind them on each side of lobe : elytra with not more than three 

 simple striae on each side of suture. 



35 (36) Elytra with three inner striae marked. Length, 4 mm. inac/eayi SI. 



36 (35) Elytra unistriate on each side of suture. 



37 (38) Head wide; prothorax transverse, depressed, lateral margin and channel 



wide, elytra depressed. Length, 3.5 — i mm. bipartitiim Macleay. 



3S (37) Head narrow; prothorax globose, lateral margin and channel narrow; 



elytra convex, a deep transverse-oblique foveiform impression at 



. position of anterior discal puncture. Black, nitid. Length. 2.8 



mm gibbipennis Blackb. 



I sent specimens of Benibidiiim bipartilum Mad., to Dr. R. Jeannel, of Tou- 

 louse, tile ])resent authority on the tribe Trechini, and liave been infonued b.v 

 liiiu that it l)elongs to ."^pdrades of Fauvel (.genotype, ^'. sejpiDictatus Fauv.. New 

 Caledonia), a genus which Dr. Jeaunel informed me has also been found in tlie 

 Oriental Region, and in East Africa. Tlie genus Trechodes, founded by Hiaek- 

 burn on his Benibiditim aecuhiides, must become a synonym of Sporades, for tlie 

 only difference I can note between Bemhidium hiparliliim Macl.. and B. gernidides 

 Blackl)., is one of colour (B. bipartitum, el.vtra piceous, head and prothorax red; 

 B. secaloides^ ujiper surface wholly piceous). Tlie genus Trechus as used in this 

 paper will include Spontdeti as a subgenus. 



Blackburn has tahulate<l the Australian and Tasmanian species of Trechus 

 known tn liiiii (Trans. Roy. Sor. S. Aust., lOfll. p. 117). My idea of tlie genus 



