1873. 75 



DESCEIPTION OF A NEW SPECIES OP THE COLEOPTEROUS GENUS 

 ANOPL O GNA TR US. 



BT CHARLES O. WATEEHOUSE. 



Akoplognathtts partulus, sp. nov. 

 cj. Statura omnino A. viridi-cenei, at minor; mireo-viridis, nifi- 

 dissimus ; elypeo rugoso-piinctato, capite dense punctato ; tJiorace parcius 

 punctulafo ; elytris si/htilius sat dense, sub-seriatim punctulatis. An- 

 tennis pedihnsqiie obscure tesfaceis ; tarsis piceis, CKpreo-micantihus. 

 JiTesosterno inter coxas non producto, in onedio parce punctato, punctoque 

 nigro-cceruleo sagittiformi impresso, lateriius dense. punctatis, albo-pubes- 

 centibus. Abdomine in medio fere impunctato, lateribus fortiter punctatis 

 et albo-pubescentibus. Pygidio dense transversim o'uguloso-strigoso. 



Long. 8 lin., lat. 4t\ lin. 



In general form this species closely resembles A. viridi- 

 (sneus ; the clypeus is, however, a little more emarginate on each side, 

 and less reflexed in front, and the surface is distinctly and thickly 

 punctured. The thorax is scarcely emarginate before the anterior 

 angles, the angles very slightly prominent and obtuse, the surface is 

 nearly twice as thickly punctured, and is more distinctly so than in 

 A. viridi-ceneus. The scutellum is sparingly and distinctly punctured. 

 The elytra are slightly less arched than in A. viridi-ceneus ; the punc- 

 tuation is rather finer, and is continued on the sides, but is less close. 



The absence of the sternal spine, together with the total want of 

 brown colouring on the upper surface, will at once separate this from 

 any species of the genus with which I am acquainted. 



Sab. : E. Australia. Coll. British Museum. 



Britisli Museum : July ^Ist, 1873. 



NOTES ON CORIXA. 



BY E. BUCHAlJfAN WHITE, M.D., E.L.S. 



{concluded from j). 63). 



Analytical Key to the British Grenera and Species of Corixidce. 



Geneea. 



A. Ilead (with eyes) wider tlian prouotum. 



1. Prouotum without markings. No strigil in male Cymatia 



2. Prouotum with impressed transverse lines. Strigil iu ma]o...OBElNOCOElXA 



B. Head (with eyes) not wider thau prouotum. 



1. Prouotum and elytra not rastrato. Asymmetry to left side in 



male Maceocoeixa 



2. Prouotum and elytra more or less rastrate. Asymmetry to 



right side iu male. 

 a. Posterior metatarsus more or less conspicuously marked 



with black. No strigil \ Callicoeixa 



h. Posterior metatarsus not or scarcely mi^rkod with black. 



Strigil in male CoEiXA 



