The annals and magazine of natural history : zoology, botany, and geology . s, spatium includentibusfere ad caput aequali, prothorace medio paulo elevato, lateribusminute carinatis. Long. 29-32 mm. Hah. Bihe. 10 128 Mr. G. J. Arrow on Cohoptera This is the Lirgest and most remarkably accoutred speciesof its large genus yet known. It is allied to C. Elphenor^Klug, and C. Anceus, Oliv., and represents in its armature agreat development of that type. Tlie clypeus is relatively alittle less wide tlian in those species and almost uninterruptedlycurved. It is narrower in the male than in the femalea
The annals and magazine of natural history : zoology, botany, and geology . s, spatium includentibusfere ad caput aequali, prothorace medio paulo elevato, lateribusminute carinatis. Long. 29-32 mm. Hah. Bihe. 10 128 Mr. G. J. Arrow on Cohoptera This is the Lirgest and most remarkably accoutred speciesof its large genus yet known. It is allied to C. Elphenor^Klug, and C. Anceus, Oliv., and represents in its armature agreat development of that type. Tlie clypeus is relatively alittle less wide tlian in those species and almost uninterruptedlycurved. It is narrower in the male than in the femaleand the thorax is correspondingly contracted in front. Inboth sexes the head bears a horn, but without any similaritybetween the two. That of the male is over 20 mm. long inour specimen, comjjressed laterally so as to be rectangular insection for most of its length, but beyond the middle it ishollowed out on its inner face and the edges of the channelare strongly dent:ite. The horn of tiie female has the formof a crescent att-iched by a short footstalk to the front of the. Co])ris draco, cJ and 5 , uat. size. head. The two extremities are about 8 mm. apart in ourexamples and the footstalk about 3 mm. long. The thoraxin both sexes is coarsely rugose except for a small medianposterior area, which is moderately punctured. In the malethis median part is strongly humped and divided in front,where it terminates in three obliquely placed teeth on eachside. The lateral margin in the ssame sex is furnished at themiddle with a large leaf-like or wing-like process, curving Jrvin Vurluijuese West A/rir-i. 129 upwards and forwards and tapering to a point. Immediatelybehind this the thoracic margin is deej)ly excised, and betweenthe wing-like processes and the dorsal hump are deep andvery rugose excavations. In the female the lateral processesare very slightly and the dorsal hump rather more stronglyindicated. In other respects the sexes are alike. The elytraare highly polished, with feebly p
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Keywords: ., bookcentury1800, bookdec, booksubjectnaturalhistory, bookyear1838
