•201 



AphanocephaluB dissimilis. 



A. ilisgimilis, Matthews, Ann. and Mag. Nat. Hist. 1887, p. 115. 



L. c. -^jj lin. = 1*12 mm. — Subovatus, validissiiue convexus, nitidus, profunde 

 piinctatus, aeneo-piceus ; capite prominenti, magno, lato, indistincte punetato, 

 e!)i8tomate permagno, lateraliter valde dilatato, oculis magnis, prominentibus ; 

 prnnoto sat brevi, transverso, antice excavato, angulis anterioribus obsoletis, 

 punctis umbilicatis sat confertim impiesso, interstitiis glabris, nitidis, lineti 

 basali distincti'i, lateribus marginutis et leviter rotundatis, margine basali scutellum 

 versus prodactii, angulis sat obtusis ; dytrix pronoto parura latioril)us et plus (juani 

 duplo longioribus, ad media latissimis, profundissime et sat confertim punctatis, 

 interstitiis glabris, nitidis, lateribus late marginatis, apice integro ; pedibus longis, 

 gracilibus, liBte flavis ; antennis longis, flavescentibus, clavis obscurioribus. 



Bodji subovate, exceedingly convex, shining, deeply punctured, aeneo-piceous. 

 Head prominent, large and broad, indistinctly punctured, with the epistoma very 



large, and much dilated at the sides ; eyes large and prominent ; antennae 



rather long, liavescent. 

 Thornr rather short, transverse, excavated in front, with the anterior angles 



obsolete, rather closely marked with umbilicated punctures, with the interstices 



smooth and shining, basal line distinct, sides margined and slightly rounded, 



basal margin produced towards the scutellum, with the angles rather obtuse. 

 Scutellum moderate, triangular, and j)unctured. 

 Elytra rather broader and more than twice longer than the thorax, widest at the 



middle, very deeply and rather closely punctured, with the interstices smooth 



and shining, sides broadly margined, apex entire. 

 Lcr/s very long and slender, bright yellow. 

 Under parta castaneous, with the protliorax and mesosternnm paler, epiplem-al folds 



very broad and yellow, metasternum deejily and remotely punctured. 

 Differs from all the other species in the prominence of the head, size, form, and 



sculpture of the body. 

 Habitat, Asia. Found in China by Mr. Bowring. 



Of this remarkable insect there are many specimens in the collection of the 

 British Museum. In outward appearance it is wholly unlike ^l^j/faHoccjj/x/^K*,- but 

 I was led to suspect that it might belong to that genus by the similarity of the 

 proportions of its antennae, and therefore minutely examined the anatomy of the 

 external skeleton of its under side, and dissected the organs of the mouth. In all 

 these particulars the resemblance is so perfect that the diagrams of the anatomy of 

 A. hciiiixphcriciis fully represent the corresponding parts of the present species. 

 The most characteristic of these arc the great size and lateral dilatation of the 

 epistoma ; the great development of the lingua ; the round anterior coxal cavities ; 

 and the prodigious enlargement of the mesosternal epimera. 



