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ADEPHAGA. 



PELMATELLUS. 



Parvus, facies StmoTopTd. Oculi parnm prominentes ; f ovese frontales curvatse, utrinque usque ad oculum 



continuatse. Palpi versus apicem attenuate, acuti ; labiales articulo penultiino bisetoso. Mentum in sinu 

 acute dentatum. Antennae graciles, articulo 3° sequenti subaequali, subtiliter sed sparsius pubescente. 

 Thorax elytris angustior. Elytra oblongo-ovata, stria scutellari brevi basi striae 2* conjuncta, interstitio 

 tertio post medium unipunetato. Pedes graciles ; tibiae intermediae et posticae spinuloses, anteriores extus 

 tantum ad apicem pauce spinosae. Tarsi posteriores articulo 1° quam sequens longiore ; anteriores quatuor 

 c? articulis 2°-4 m dilatatis subcordatis (4° vix bilobato), plantis ut in Anisodactylis planis aequaliter 

 dense pubescentibus marginibus ciliatis, articulo primo pedum anteriorum triangulari subtus sparsim 

 pubescente, pedum intermediorum elongato subtus simplici. 







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The numerous small species of this genus found in Tropical America are liable to be 

 confounded with Stenoloplms or Brady cellus, if attention is not paid to the clothing of 



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the soles of the dilated tarsi. They resemble also the smaller species of the Australian 

 genus Diajphoromerus, from which they differ in the curved frontal fovese, the bisetose 

 penultimate joint of the labial palpi, and the longer and less lobed shape of the dilated 

 tarsal joints of the male. 



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l. Pelmatellus nitescens. (Tab. ill. fig. 17.) 



Oblongus, niger, supra aenescens politus, palpis, antennis basi (cseteris fuscis) pedibusque melleo-flavis ; capite 

 lsevi, foveis frontalibus conspicuis linea curvata usque ad oculum profunde impressa ; thorace quadrato, 

 antice modice rotundato, postice subrecte angustato (margine interdum rufescente) margine basali 

 utrinque versus angulum rotundato, sed angulis postieis distinctis, subdenticulatis, basi utrinque plus 

 minusve distincte punctato ; elytris subpunctulato-striatis, interstitiis plus minusve (pra3eipue juxta 

 apicem) convexiuseulis. 



Long. 2f-3 lin. tf o . 



Hab. Mexico, Jalapa, Las Vigas, Oaxaca {Hbge) ; Guatemala, Capetillo, Senahu, 

 Quesaltenango (Champion). 



The hind angles of the thorax have a minute prominence (sometimes scarcely percep- 

 tible), formed by a projection of the basal rim. 





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2. Pelmatellus stenolophoides. 



Rufescenti-piceus, supra senescens politus, antennis basi (vel totis), palpis pedibusque pallidius rufis ; capite 

 laevi, foveis frontalibus suturaque transversa subtilissime impressis ; thorace parum trans verso, lateribus 

 fere sequaliter arcuatis, angulis anticis distinctis, postieis omnino rotundatis, marginibus lateralibus 

 paullulum aequaliter explanatis rufis, basi utrinque parcissime punctulato, foveis latis ; elytris margine 

 basali utrinque fortiter arcuato, apice subprofunde sinuatis, supra acute subtiliter striatis, interstitiis 

 usque ad apicem planis, marginibus rufescentibus. 



Long. 2|-3 lin. tf $ . 



Hah. Mexico, Cordova, Capulalpam (Salle). 



3. Pelmatellus obtusus. 



P. nitescenti affinis, minor, thoracisque angulis postieis rotundatis etc. Nigro-piceus, supra senescens politus, 

 antennis basi (cseteris fuscis), palpis apice pedibusque piceo-rufis ; capite lsevi, foveis frontalibus parvis 

 profundis, supra extus in linea subtili curvata usque ad oculum continuatis; thorace quadrato, late- 

 ribus perparum arcuatis (margine rufescente), postice gradatim angustato, angulis postieis rotundatis, 





































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