250 PERCY SLADEN TRUST EXPEDITION 



Loc. Seychelles: Mahd, 1908 — 9, 1 specimen from the low country and a second 

 without record of exact locality ; previously found by Brauer and AUuaud. Amirantes : 

 Eagle Island, 1905. Comoros, Africa (Mozambique and Angola). 



Monsieur Lesne has kindly sent me from the Paris Museum an unnamed specimen 

 labelled "Madagascar, Dr Daull^, 1857"; it is slightly smaller than the other specimens 

 before me, its labrum is lighter (more reddish) in colour, and more transverse in form : in 

 other respects the specimen so closely resembles the series discussed above that I think it 

 must be referred to the same species, S. fulvipes. 



Tachys Schaum, Naturg. Ins. Deutschlands, i. 1860, p. 743. 



37. Tachys hihulus (Coquerel). 



Bembidium (Tachys) hihulum Coquerel, Ann. Soc. ent. France, ser. 4, vi. 1866, p. 313. 



Tachys hihulus AUuaud, Liste Coleopt., p. 16. 



4 specimens, agreeing closely with Coquerel's description except in one point con- 

 cerning the colour. Coquerel in his diagnosis uses the expression "viridi-seneum, nitidum," 

 and in the description "d'un vert bronz^ trfes brillant." The specimens before me are 

 shining and pitchy-blackish, not bronze-green ; but in certain lights they have a slight 

 bronze reflection. In all other respects, in size, form of thorax and elytral striae, colour 

 and form of light markings on the elytra, etc., they correspond closely with Coquerel's 

 description of T. hihulus, to which species I therefore refer them. 



Loc. Aldabra ; 1908 — 9, 3 specimens (Fryer). Seychelles; Mah^, marshes on 

 coastal plain at Anse aux Pins, I. 1909, 1 specimen. Reunion, Mauritius, Madagascar. 



38. Tachys seychellarum, sp. nov. (PI. 12, fig. 13). 



Sat latus, ovalis, laevis, testaceus, capite elytrisque parum infuscatis, antennis pal- 

 pisque pedibusque pallidis ; prothorace fortiter transverse, elytris conspicue angustiore, 

 postice angustato, angulis posticis fere rectis, lateribus antice angulisque anticis rotun- 

 datis ; elytris unistriatis, stria (suturali) ad basin attingente, disco bipunctato, puncto 

 posteriore setigero. Long. corp. 1^; mm. 



Form rather broadly oval, smooth, impunctate, testaceous, with head and elytra 

 rather darker, and with antennae and legs pale. Joints of antennae short. Head with 

 2 setigerous punctures on either side just within the eye. Thorax narrower than elytra in 

 its broadest part, and conspicuously so at the base : about 1^ times as broad as long, 

 narrowed behind with sharp posterior angles, with the sides rounded in front and the 

 anterior angles rounded off, with a setigerous puncture on either side-margin a little before 

 the middle and another at each posterior angle. Elytra rather broad, each with only one 

 stria (the sutural), which reaches to the base ; disc with 2 punctures (about the region of 

 the 3rd stria, were other striae present), one rather before the middle of the length, the 

 other about ^ of the length from the posterior end, the posterior one bearing a seta, the 

 anterior one having no seta (though it is possible this is broken off) ; a marginal puncture 

 at the shoulder and 2 others on the side-margin just behind the shoulder ; apex of ely- 

 tron subtruncate, with a small seta near its outer margin. Wings present. Underside 



