212 Mr. H. W. Bates on Longicorn 



specimens, except in the fuscous apex of the elytra 

 being less dark, and the transverse ridge not conspicuous. 

 This variety occurs also in New Granada. L, 'pleurostictus 

 (Bates) , is very closely allied, but is a much shorter 

 insect. 



Leptostylus macrostigma, n. sp. — -L. transversa forma 

 similis, diflfeft elytris macula laterali fusca maxima, usque 

 ad discum extensa, et intus fascia curvata grisea margi- 

 nata, versus apicem haud transversim fasciata nee elevata, 

 sed linea fulgurata grisea nigro-marginata ornata ; thorace 

 dorso 5 tuberculato et tuberculis lateralibus conicis con- 

 spicuis ; antennis testaceo-griseis fusco-maculatis ; tarsis 

 nigris, articulis 1 et 4 basi testaceo-griseis. 



Long. 4 lin. ^ . 



One example only, in Mr. Belt's collection. 



Leptostylus injgialis, n. sp. — Breviter ovatus, convexus, 

 fuscus, elytris postice macula communi griseo-alba ; 

 thorace dorso trituberculato, grosse punctate, obscure 

 fusco, juxta marginem posticum lineola utrinque nigra ; 

 scutello nigro ; elytris apice abrupte declivibus,brevissime 

 vix truncatis, supra conspicue lineatim crebre punctatis, 

 medio baseos leviter convexis, disco utrinque tricostatis, 

 costis perpauciter penicillatis, fulvo-fuscis, basi et lateri- 

 bus sgepe nigro-fusco-plagiatis, prope apicem macula 

 bblonga communi alba ; tarsis articulis 1-3 nigris basi 

 griseis, 4 testaceo-rufo. 



Long. 3-34 lin. 



Many examples. 



Leptostylus leucopygus, n. sp. — Ovatus, quoad formam 

 L. maculce (Say) simillimus, fuscus, elytris triente apicali 

 griseo-albo ; thorace parvo, lateribus haud tuberculatis, 

 dorso antico tuberculis duobus rotundatis, vitta utrinque 

 nigra : elytris apice conjunctim acute rotundatis, supra 

 lineatim punctatis, interstitiis alternis elevatis nigro- 

 penicillatis, medio baseos haud elevatis, prope suturam 

 ad basin planis confuse punctatis, parte apicali grisea 

 antice recte delineata ; antennis articulis 4-6 basi, 8-10 

 toto, flavo-testaceis. 



Long. 2 J lin. 



Several examples. 



