668 OFVEUSIGT AF K. VETENSK.-AKAD. FOKHANDLINGAR, 1^71. 



Caput deflexum, transversura, punctulaturn. nigrum, niti- 

 clum; oculi coiivexi, retrorsum prominuli. Thorax latitudine 

 postica vix brevior, pone medium leviler rotundato-ampliatus, 

 antrorsum angustatus, basi subtruncatus, apice sinuatus, supra 

 (;onvexus, antice verticaliter declivis ibique muvicatus, postice 

 atque ad latera fere h^vis, nitidus, margine lateral! dorsi antice 

 utrimque dentibus 4 vel 5 seriatis munito, totus niger, glaber. 

 Scutellum parvum, obtusum, piceura. Elytra cylindrica,^ basi 

 thoracis latitudine aequalia eodemque plus duplo longiora, po- 

 stice retusa, ipso apice conjunctim rotundata, ubique vage et 

 sat crebre punctata, nigra, basi plaga magna coramuni, sub- 

 trigona, versus humeros dilatata, testacea, parte postica retusa 

 reHexo-marginata. fusco-terruginea. Corpus subtus convexura, 

 punctulaturn, nigrum, gviseo.pubescens, abdomine fusco-ferru- 

 gineo. Pedes, cum roxis, testacei. 



20. Bostrichas (Geoffroy) cornutus: oblougus, cylindricus, ater, 

 opacus, antennis fusco-ferrugineis; thorace hirsutie fulvescente 

 plus minusve manifeste vestito, antice utrimque cornu porrecto. 

 externe subserrato, instructo, dorso medio canaliculato, apicem 

 versus muricato; elytris subseriato-punctatis, dorso longitudina- 

 liter sub-bicostatis. Long. 9 — 15, lat. "2^ — 4^ millim. 



cf' thorace elytris latiore, angulis posticis rotundatis, corni- 

 i)us longioribus, subrectis. 



9 thorace latitudine elytrorum, postice obtuse angulato, 

 cornibus brevioribus, introrsum subarcuatis. 



Bostrichus cornutus Onv. Ins. 77. tab. 1 f. 5. 



Apate cornuta Fabr. Ent. Syst. 2: 360. 2. — Syst. El. 

 2: 380. 10. 



21. Bostrichus cijUndricus: elongatus, cylindricus, niger, subniti- 

 dus, tenuiter flavo-griseo-pubescens, fronte inaequali, thorace an- 

 tice retuso, utrimque in cornu producto, margine impressionis 

 superiore cornibusque tuberculatis; elytris substriatim rugoso- 

 punctatis; antennis testaceis. Long. 12^,- lat. 3 millim. 



Caput deflexum, injiequaliter rugoso-punctatura, tenuiter 

 griseo-pubcscens, tVonte sub-bicallosa, medio breviter canaliculata; 

 oculi majusculi, couvexi, postice subcarinati. AiitenniK vix longi- 

 tudine capitis, testaceiTc, funiculo saturatiore. Thorax subqua- 

 dratus, basi late sinuatus, angulis fere rectis, lateribus indistincte 

 rotundato-ampliatis; antice retusus, utrimque in cornu productus; 

 supra granulis, in tergo depressis, obsitus, medio, distiucte ca- 

 naliculatus, cornibus o^ vix dimidio thoracis brevioribus, apice 

 subuncinatis, $ vix quarta thoracis parte longioribus, magis 

 jipproxiinatis, apice convergentibus, in utroque sexu, cum mar- 

 gine impressionis superiore, irregulariter tuberculatis interneque 

 c^ densius, 9 parcius. fulvo-griseo-hirsutis. Scutellum rotun- 

 datum, subclevatuni. Elytra thorace fere triplo longiora, basi 

 subtruncata, humeris subrectangulatis, apice conjunctim sub- 

 rotundata, ubi(iue fortiter et substriatim rugoso-punctata, sutura 



