ADORRHISYPTIA. 273 



Division IV. ADOEEHINYPTHNl. 



The three species for which I have made the genus Ador- 

 rhinyptia, and which have not hitherto been distinguished from 

 Rhinyptia, really form a separate, highly peculiar and interesting 

 group. While the true Rhinyptia is quite evidently only a 

 modified form of the Anomdla group and some of its African 

 species are very closely related to Anomala itself, the species with 

 a hairy covering which I here separate from it have several 

 important points of difference. Although in the primary char- 

 acter (i. e. the flat horizontal labrum)by which the ANOMALINI are 

 divided from the AfcoRETiNi, Adorrlnni/ptia is typically Anomaline, 

 in many other essential features of that group it is deficient and 

 shows affinity rather to the ADORETINI. Thus it is without the 

 membranous margins to the elytra, which form an invariable 

 mark of the ANOMALINI, and the joints of the antennae are ten in 

 number, and not nine as in that group. The last abdominal 

 spiracle is situated close to the hinder margin of the penultimate 

 segment, as in the ADOEETINI, and not midway between the front 

 and hind margins. In the sculpture of the elytra and the form 

 of the claws it also shows a striking resemblance to Adoretus, while 

 the sedeagus of the male is entirely of the characteristic Adoretine 

 type, with the orifice dorsal, and not ventral as in Rhinyptia and 

 all the ANOMALINI. In fact, but for the close similarity of the 

 organs of the mouth to those of Rhinyptia, I should certainly 

 assign it to the ADORETINI ; but the structure of the labrum is 

 quite different and makes it impossible to dissociate it entirely 

 from Rhinyptia. Altogether it presents a very interesting problem 

 in classification. 



Genus ADORKHINYPTIA, nov. 

 TYPE, Rhinyptia dorsalis, Burm 



Range. India. 



Body ovate, not very long, and rather depressed, with a rather 

 -close covering of fine decumbent hair above and beneath. Eyes 

 very large and prominent ; the clypeus small, rapidly narrowing 

 from the eyes forward and forming in front a short recurved 

 rostrum, which is bluntly rounded at the end, densely clothed with 

 erect hair and longitudinally carinate along the middle. The 

 antennae are 10-jointed, the first joint long and slender, the 

 second globular, the third to the seventh progressively diminishing. 

 The labrum is thin, horizontal and obtusely angular in front. 

 The mandible is short, produced to a sharp point and with a 

 strong molar part. The maxilla is armed with six very sharp 

 slender teeth parallel to one another ; the three-jointed palpi 

 attached near the extremity. The mentum is broad and excised 

 at its anterior margin. The pronotum is broad, margined all 

 round and very feebly prominent in the middle of the hind 

 edge. The elytra are without membranous margins. The 



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