Coleoptera from Chontales. 205 



que penicillato-cristatis, sparsim grosse punctatis, versus 

 apicem uigro fulgurato-lineatis, litura C-formi cretacea 

 dorsi^ ad suturam spectanti, maculaque anteriori cretacea 

 suturali ; an tennis fuscis, articulis 4-11 basi griseis ; pedi- 

 bus griseo et fusco variegatis, femoribus maxime clavatis. 



Long. 5i lin. ^. 



In Mr. Belt's collection. 



Oreodera costaricensis, Thomson, Syst. Ceramb. p. 542. 

 — Apparently abundant in Chontales. Also Costa Rica. 



Oreodera inscripta, n. sp. — Breviter oblonga, sericeo- 

 fusca, elytris pone basin penicillato-cristatis, prope apicem 

 lineis nonnullis valde angulatis griseis, nigro-fusco mar- 

 giuatis, et vittulis nigro-fuscis connexis ; capite ochreo- 

 fiisco, vertice pone oculos maculis duabus transversis 

 nigro-fuscis ; thorace dorso antico bituberculato, sparsim 

 grosse punctato ; elytris apice oblique truncatis, angulo 

 exteriori dentiformi-producto, supra grosse sparsim punc- 

 tatis, basi nullomodo granulatis ; pedibus griseo et fusco 

 variegatis. 



Long. 4 lin. c? ? . 



Many examples. In the markings of the elytra, it 

 much resembles 0. undvlata. Closely-allied_, according 

 to the description, to 0. corticina, Thorns., of Mexico, 

 which, however, is larger (5 lin.). 



Genus Olenosds, nov. gen. 



Sub-fam. Acanthoderince. Corpus elongato-oblongum. 

 Caput antice breve, genis infra baud dilatatis ; tuberes 

 antenniferaB fortiter oblique elevatte. Thorax transversus. 

 lateribus medio dilatatis et unituberculatis. Elytra 

 elongata, parallela, juxta apicem rotundata, apice ipso 

 breviter vix truncata. Antennfe (c?) corpore triplo 

 longiores setaceae ; articulo primo elongato-pyriformi, 

 3-11 subaequalibus hand ciliatis. Pedes elongati: femora 

 subito clavata, tibise anticse ( <S ) intus denticulatae et 

 apice dilatatai : tarsi, tibiarum dimidio hand longiores, 

 articulo primo caeteris longioribus, unguiculari brevi. 



Closely allied to Alphus and ^thomerus , differing from 

 both in the shape of the basal joint of the antennae, which 

 is more elongated, and forms a moderately abrupt elon- 

 gate-oval club. 



