Mr. J. Nietner on new Ceylon Coleoptera. 427 



upon the elytra between the two near the suture and the infra- 

 marginal furrow. 



79. Bembidium scydnuenoides, N. 



B. ovatum, convexum, obscure brunneum, elytris maculis 4 magis 

 minusve obsoletis dilutioribus, pedibus, palpis antennarumque 

 art. 2.primis testaceis, his apice reliquisque obscurioribus. Long. 

 corp. 1 lin. 

 Praecedenti simile, corpore robustiore, fortius ovato magisque con- 



vexo, thorace basi fortius quadrato facillime distinguendum. 



In prov. occid. communissimum. 



Tribe Harpalid^e. 



Megaristerus, n. g., N. 



Corpus oblongum, depressum, glabrum. Caput mediocre antice, 

 obtusum. Mentum profunde subquadrate emarginatum, edentatum, 

 lob is extus rotundatis, apice acuminatis. Ligula minima, oblonga, 

 paraglossis magnis connatis earn totam amplectentibus, antice rotun- 

 datis, subcordate emarginatis. Palpi maxill. art. ultimo subcylindrico, 

 apice magis minusve angustato, truncato, lab. eodem obovato, trun- 

 cato. Labrum transversum, antice posticeque angustatum, margine 

 anteriore profundius emarginato, setoso. Clypeus emarginatus. 

 Mandibular validse, trigonae, apice leviter arcuatse, dextera mediocri 

 labro obtecta apice acuminata medio 1-dentata, sinistra robustiore 

 porrecta (hinc n. g. Megaristerus) apice obtusa medio 2-dentata. 

 Antennae humeros parum superantes, filiformes, art. 2° sequente 

 parum breviore, reliquis subaequalibus. Thorax rotundato-cordatus, 

 postice angustatus angulis rotundatis, antice leviter emarginatus 

 angulis distinctis. Elytra parallela, apice rotundata. Pedes ut in 

 g. Acupalpo, tarsis maris 4 ant. tamen art. 1° subtus nudo. 



Victus Harpalorum. 



Apparently closely allied to Amblystomus, — differing, however, 

 in the sculpture of the tarsi, and in the antennae, labrum, and palpi; 

 and, as in the diagnosis as given by Lacordaire in his ' Gen. des 

 Col./ the paraglossae of Amblystomus are simply said to be 

 rounded in front, a further distinction would appear to reside 

 in the notch which exists in that part of the paraglossae of my 

 genus Megaristerus. Also allied to Acupalpus, the sculpture of 

 the tarsi being exactly the same, — in saying which, I bear parti- 

 cularly in mind that the intermediate ones of the male are hardly 

 dilated. From this genus, however, it is effectually distin- 

 guished by the shape of the ligula. From both Amblystomus 

 and Acupalpus the present genus, moreover, differs in the vesture 

 of the four anterior tarsi of the male, the first joint being naked 

 below — and in the mandibles, the left one of which is much larger 



