•506 JOURXAL, l^OM BAT XATUBAL HIST. SOCIETY, Vol. XXI. 



ventrali secundo area basali elevata niilla ; segmentis ventralibus 3-.j 

 lateribiis cristatis, quinto margine apicali reflexo, in medio dentato. 

 Long. 14 mm. 



9 . Clypeus more than half as broad again at the apex as the greatest 

 length, the apical margin truncate, with two small teeth close to the 

 middle ; antennse inserted a little further from the anterior ocellus than 

 from the base of the clypeus ; the second joint of the flagellum nearly 

 as long as the first and third combined ; posterior ocelli a little further 

 from the eyes than from each other. Pronotum not depressed in the 

 middle ; mesopleurse without tubercles. First abdominal segment as long 

 as broad ; second ventral segment without a raised area at the base ; 

 ventral segments 3-o with a strong erect process on each side ; the fifth 

 with the apical margin recurved, with a triangular tooth in the middle. 

 Pygidial area elongate ovate, rather narrowly truncate at the apex, more 

 than twice as long as the greatest breadth, the surface granulate. Strongly 

 punctured ; the enclosed area at the base of the median segment smooth 

 and shining, with a few striae at the base, divided by a shallow longitu- 

 dinal furrow. First recurrent nervure received before one-quarter from the 

 base of the second cubital cell. 



H(thitat—M.-AdT?iS,{W. Elliot). 



I have onljr seen the type. The structure of the ventral abdominal 

 segments is remarkable, and probably is of assistance to the insect ni 

 transporting beetles, perhaps Bu'prestidcn . 



Cerceris tetradonta Cam. 



Cerceris tetradonta Cam. Mem. Manch. Lit. and Phil. Soc. (4) III., p. 

 261. 1890. 



$ . Nigra, punctata ; clypeo, fronte, genis, vertice fascia transversa 

 utrinque, pronoto, tegulis, mesopleuris macula, scutello, postscutello, seg- 

 mento mediano macula utrinqxie, segmentis dorsalibus 1 — o,ventralibus 2 — 4, 

 macula transversa utrinque pallide flavis ; segmento primo basi, femoribus- 

 que ferrugineis ; pedibus flavovariegatis ; clypeo apice truncato, quadri- 

 •dentato ; mesopleuris tuberculo parvo ; segmento ventrali secundo area 

 basali elevata nulla, segmento mediano area basali nitida. 



S ■ Clypeus apice bisinuatus ; fasciae abdominis fere continuce. 



Long. 2 , 9 mm ; S , 7 mm. 



5 . Clypeus truncate at the apex, with four blunt teeth. Antennce 

 inserted nearly twice as far from the anterior ocellus as from the base of 

 the clypeus, second joint of the flagellum half as long again as the third. 

 Mesopleurse with a minute tubercle ; second ventral segment without a 

 raised area at the base ; first segment twice as broad as long ; pygidial 

 area broadest in the middle, almost pointed at the base, truncate at the 

 apex, nearly twice as long as the greatest breadth. Deeply but not very 



