164 [December, 



Mr. A. G. Butler contributed a paper " On the species of the Lepidopterous 

 genus Euchromia ; with descriptions of new species in the collection of the British 

 Museum." 



Lord Walsingham communicated a note substituting the generic r\&me Homony- 

 miis for the generic name Anlcistrophorus — which was pre-occnpied — used in his 

 " Eevision of the genera Acrolophus and Anapliora," recently published by the 

 Society. 



Mr. Waterhouse announced that at the December meeting he would exhibit a 

 series of diagrams of wings of insects, and make some obsei"vations on the homologies 

 of the veins. — H. Gross, Son. Secretary. 



ON A NEW SPECIES OF STITMRIVS FEOM TANGIER. 

 BT GEORGE LEWIS, E.L.S. 



Mr. J. J. Walker captured, on the 14tli March last, in the nest 

 o£ a " bright red ant " at Tangier, a new species of Hetodrius which 

 is remarkable in having the hind angles of the thorax acutely produced, 

 and it is the only Histerid in the Family in which this character is so 

 conspicuous. 



HeT^RIUS ACUTAISTGULUS, W. Sf. 



Sreviter ovatus, hrunneo-ferriigineiis, sat nitidvs ; thorace den.ie ocellato- 

 punctata, angulis posticis transversim pi'>'oductis ; tibiis anticis aspere ocellato- 

 punctatis. Loi^g. 2"S mm. 



Head and thorax densely punctate, punctures ocellated, especially behind the 

 neck. Forehead with two lateral striae, which are feebly biangulate, and do not 

 meet in front, but continue down part of the clypeus parallel to each other. The 

 thorax is punctate throughout its entire surface, which gives an appearance of 

 opacity, the anterior angles are obtusely produced and slightly reflexed, the sides are 

 narrowly marginate and somewhat parallel for about three-fourths of the length, 

 with the posterior angles produced and acuminate. There is a small rather trans- 

 verse fovea at the base of the angle, and the scutellum is smooth and triangular. 

 The elytra have three striae, 1st complete, 2nd evanescent posteriorly, 3rd basal and 

 short, the dorsal surface is punctulate throughout, with apices of the elytra clothed 

 with erect hairs. Prosternum is broadly canaliciilate, the canaliculation being 

 shining, with a few irregular punctui-es, deep and somewhat narrowed in front, 

 shallow and broad behind, and a little sinuate before the coxae ; the base is broadly 

 emarginate, with the angles on either side produced somewhat acutely behind the 

 coxae. The sides of the thorax beneath are densely and ocellately punctured. The 

 metasternum is finely and feebly punctulate and wholly depressed, the depression 

 anteriorly being so deep that the mesosternum is inclined to be vertical. Propygidium 

 and pygidium feebly and sparsely punctate, the first having erect hairs. The forelegs 

 are opaque, roughly and densely punctate and ocellated, the second and third pairs 

 are smoother on the inner surface, with the tibiae very broad and nearly triangular. 



This species resembles S. Bedeli, Lewis (Ent. Mo. Mag., vol. xxi, 

 1884, p. 83) in the dilatation of the tibiae, but there the similitude 



