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DTNAMIS. 



79 



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Subfam. CALANDMNM 



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Since the issue of the seventh volume of Lacordaire's ' Genera des Coleopt 



but little work has been done at exotic Calandrids beyond Chevr 





attempted revision of them, published in part in 1882, and completed, posthumously, 



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by Jekel and Salle, in 1885. Horn and Leconte, however, in 1873-76, eliminated 





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m the old genus Sphenophorus a few forms from the Southern United States 



— "linly introduced from warmer climes), under the names Cactophagus, Metamasius 



and MhodobcBnus: and though these authors placed only one or two species in each of 



the above-mentioned g 



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: - 



to include most of the spotted 

 or maculate Tropical American Sphenophorina, Sphenophorus } sensu stricto, becoming 

 ^ss numerous southward, lhe species in many cases, owing to their greasy nature 



and their extremely variable colour, are often very difficult to determine till they 



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thoroughly cleaned and the sexual characters studied. The males in certain members 



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* the genera Cactophagus and Metamasius have either the rostrum silicate and 

 crenate beneath, or the anterior or posterior tibise strongly ciliate, or the posterior 



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tibiaa penicillate, &c. ; and the females (especially in Rhodobcenus) often have a 



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dentiform prominence on the peduncle of the submentum in front. In Homalostyl 









the antennal scape is broad and flattened in one or both sexes. 



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subfamily Calandrinse is very largely represented in the tropics of both th 



Old and the New World 



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Group RHYNCHOPHOEINA 



Rhynchophorides, Lacordaire. 



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DYNAMIS 



' Dvnamis, Chevrolat, Ann. Soc. Ent. Fr. 1882, p. 563. 







Chevrolat includes four Tropical American species under this genus, the type of 



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\V 





will be Calandra boraasi, F.*. These insects have the median lobe of 



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orax more produced than in Bhynchophorus , thus shortening the scutellum 



which is also much less extended behind and com 





the 



rostrum thick and compressed to the tip, which is dilated, and the crest of erect hair 



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i a yy«,jdtinff in the male 



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* D. (Rhynchophorus) politus, Gyll., described from the female sex only, may prove to be wrongly placed 





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— 



in 



namis. Amongst a series of twenty Ehynchophori before me from St. Vincent, W 



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R. palmarum ( $ ), and the rest ( S $ ) are extremely like that species, except that they have the upper 



surface shining (instead of velvety and opaque) ; these latter may belong to GyllenhaTs species, which is 

 described as having the rostrum attenuate and not reflexed at the apex, and the surface shining. There are 



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similar specimens from Trinidad and Cayenne mixed with the series of R. palmarum in the British Museum. 



biol. centk.-amer., Coleopt., Vol. IV. Ft. 7, April 1910. MM 



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