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PELM ATELLUS . — THEN AEELLTJS . 



69 





margine basali utrinque leviter sinuato, supra lsevi, basi indistincte sparsim punctulafco, foyeis elongatis ; 

 elytris subtiliter acute striatis, interstitiis planis, apice sinuatis. 

 Long. 1|-2| lin. g $ . 







Hob. Guatemala, Ostuncalco, Totonicapam (Champion) 



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4. Pelmatellus cyanescens. 









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Parvus, laetius coloratus, supra cyanescenti-viridis (interdum seneus), autennis basi (ceteris fuscis), palpis pedi- 

 busque melleo-flavis ; thorace quadrato, antice leviter rotundato-dilatato, postice subrecte longe angustato, 

 lateribus ante angulos posticos prominentes sinuatis, basi utrinque indistincte punctato ; elytris convexis, 

 apice sinuatis et ante sinum paullo explanatis, marginibus suturaque (interdum) paullo rufescentibus, 

 interstitiis planis vel paullo convexis. 



Long. 2-2| lin. 3 $ . 



• Hob. Mexico, Cordova (Salle). 





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5. Pelmatellus vexator. 



Oblongo-ovatus, convexus, niger, supra leviter seneo tinctus, palpis, antennis pedibusque testaceo-rufis, 

 femoribus medio tibiisque apice obscurioribus ; thorace modice transverso, lateribus fortiter arcuatis, 

 postice multo magis quam antice angustato, angulis posticis paullulum extantibus, basi sparsim punctato, 

 foveis linearibus conspicuis ; elytris subpunctulato-striatis, stria prima prope basin curvata interdum 

 interrupta. 



Long. 2\ lin. <$ $ . 





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Hab. Guatemala, Totonicapam (Champion). 













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Differs from the preceding species in its greater convexity and the 



of the elyt 



In facies it resembles Japanese species of Tachycellus 



ate form 

 the four 



preceding species have the more elongate form of Stelenoph 



The middle tarsi of the 



male appear also to be a trifle 



the brush-like palms of all four dilated 



feet are rather less smooth, or formed of coarser hairs 





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THENAEELLUS. 



Brady cello prima facie simillimus ; at differt maris plantis dilatatis pilosis nee squamosis ; a Pelmatello differt 

 maris tarsis intermediis baud dilatatis, elytrorumque inters titio tertio absque punctis. Convexus. Antennae 

 robustae, articulo tertio fere nudo; palpi acuminati. Mentum concavum, dentatum; palpi labiales pendentes. 

 Thorax transversus, cordato-quadratus, postice angustatus. Elytra ovata, convexa, interstitio tertio 

 impunctato. S • Tarsi antici articulis quatuor modice, sequaliter dilatatis (4° vix lobato), plantis 2 a -4 m 

 pilis albis nitidis vestitis ; tarsi intermedii haud dilatati, sed articulis 2°-4 m pilis nonnullis vestitis. 



The absence of the solitary setiferous puncture of the third interstice, so characteristic 



of this group and its allies, and the undilated intermediate tarsi of the male, effectively 

 distinguish this genus from Pelmatellus. The hairs on the soles of the dilated male 



tarsi are coarse, white, and glistening as in Brady cellus ; but there is no trace of trans- 

 verse lamellar arrangement. 









1. ThenareHus leucopus. 







Oblongo-ovatus, convexus, niger, supra leviter seneo tinctus, palpis, antennis pedibusque flavis ; capite laevi, 



polito; thorace cordato-quadrato, antice paullo rotundato (angulis anticis minime productis), postice 









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