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184 



APPENDIX. 



Elytra oblong, considerably wider than the prothorax, obsoletely punctate-striate, the interstices flat, 

 alutaceous, each with a row of rather coarse punctures. 



Length 2|, breadth 1 millim. ( ? ?) 



Ilab. Guatemala, Panzos in Alta Vera Paz (Champion). 



One specimen. Slightly narrower than T. pilosus, the vestiture entirely decumbent, 

 the setiform scales along the elytral interstices closely placed, the rostrum longer and 

 much more slender, &c. 



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PSEUDODERELOMUS, gen. nov. (to follow the genus Phyllotrox, p. 146) 





Mandibles bifid ; rostrum much shorter than the prothorax, moderately stout, subcylindrical, feebly arcuate, 

 4 the scrobes descending to beneath the eyes ; eyes prominent, rather large, distant above and beneath ; 



antennae (fig. 27 b) inserted at about the middle of the rostrum, the scape clavate at the apex, the 

 funiculus short and composed of six closely- articulated joints (1 stout, 2-4 small, transverse, 5 and 6 

 very broad and strongly transverse, forming part of the club), the club large, abrupt, ovate, with the 

 polished basal portion (including joints 5 and 6 of the funiculus) about as long as the pubescent, sensitive, 

 annulate apical portion ; prothorax broad, closely fitting to the elytra, the base somewhat rounded at the 

 middle ; scutellum small, narrow ; elytra bluntly and separately rounded at the apex ; pygidium 

 transverse, exposed ; prosternum narrowly raised between the subcontiguous anterior coxse, and with a 

 deep, transverse, arcuate, subapical groove : intermediate and posterior coxae somewhat widely separated ; 

 ventral segments 1 and 2 connate at the middle, 1 about as long as the metasternum, 3 and 4 short, the 

 first suture sinuous, the others straight and deep; metathoracic episterna narrow; legs very short; 

 femora stout ; tibiae straight, gradually widening outwards, unarmed at the inner apical angle, the 

 intermediate and posterior pairs truncate at the apex; tarsi clothed with fine hairs beneath, broad, the 

 anterior pair wider than the others, the third joint strongly bilobed, the claws divergent, simple, small ; 

 body subelliptic, almost glabrous. 

 Type, P. baridiiformis. 



The single species referred to this genus has the facies of a small Barid, but the 

 mesothoracic epimera do not ascend upwards, and the insect cannot therefore be 

 included amongst the Barina. In general structure it seems to be most nearly related 

 to Derelomus and Phyllotrox *, differing from both of them in the 6-jointed funiculus 

 (with the last two joints so much widened as to form part of the large club) and the 

 bluntly separately rounded apices of the elytra, the transverse pygidium being thus 

 entirely exposed. The broad abrupt antennal club, the very short, closely articulated 



funiculus, the short legs, and broad tarsi are characteristic. 





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1. Pseudoderelomus baridiiformis, sp. n. (Tab. VIII. figg. 27, 27 a, b.) 



Rather convex, alutaceous, subopaque, black, the antennae (the club excepted), and the legs in part, ferruginous. 

 Head densely punctate ; rostrum densely, rugulosely punctate, shallowly sulcate down the middle. 

 Prothorax broader than long, rounded at the sides anteriorly, feebly constricted in front ; densely 

 punctate, sometimes with a smooth abbreviated median line. Elytra very little wider than the 

 prothorax, rather short, gradually narrowing from the middle to the obtuse, bluntly rounded apex ; 

 finely punctate-striate, the interstices flat and faintly uniseriate-punctate. Beneath closely, finely 



punctate. 



? 



o - 



(<?$•) 



. * 



* Corrigendum : In the remarks on Phyllotrox (p. 141 , line 23) for " 5 and 6 " read " 6 and 7." 













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