





: 







APPENDIX. 





transverse, conical, the sides parallel at the extreme base ; transversely rugose. Elytra conical, barely 



twice 



apex; punctate-striate, the interstices transversely wrinkled, granulate, and here and there confluent. 

 Beneath densely punctate; first ventral segment depressed down the middle. Posterior femora 

 extending beyond the apex of the elytra. Tibiae without definite uncus at the apex. 

 Length 9|, breadth 4^ millim. 



Hah. Honduras (ex coll. Solari). 



One specimen. Of the same general shape as E. cyanides, but with much shorter, 

 subtruncate elytra (which are scarcely longer than the rostrum) ; the under surface 

 more densely squamose ; the legs more slender and piceous in colour ; the tibiae 

 without definite claw at either the inner or outer apical angle. From E. triangularis, 

 E. fasciculosus, &c, the present species may be known by the non-prominent 

 humeri, &c. 



DIONYNCHUS (p. 313). 



Dionynchus parallelogrammus (p. 313). 



To the locality given, add : — Costa Rica, Carrillo (Biolley). 



I have now seen several specimens of this insect from Chiriqui and one from Costa 

 Rica- M. Desbrochers des Loges [Ann. Soc. Ent. Belg. 1. p. 371 (1906)] has recently 

 called attention to the variation in the width of the elytral interstices in this insect. 



CRYPTOKRHYNCHINA 



ISOTRACHELUS 



Isotrachelus, Faust, Stett. ent. Zeit. 1896, p. 94. 

 Microcleogunus, Champ, antea, iv. 4, p. 458 (1905) 



1. Isotrachelus tibialis. 



Microcleogonus tibialis, Champ, antea, iv. 4, p. 459, t. 22. figg. 17, 17 a-c ; iv. 5, p. 117, nota. 



To the localities given, add .' — Nicaragua, Managua (Solari). 



RHYSSOMATUS (p. 326) * 



18 (a). Khyssomatus sexcostatus, sp. n. 



Ovate, convex, shining, piceous, the head, rostrum, anterior margin of the prothorax, and elytra more or less 

 rufescent; sparsely set with minute, narrow, brownish-cinereous scales, which are here and there 

 clustered into small fascicles on the elytra. Head closely punctate, the eyes somewhat narrowly separated ; 

 rostrum feebly curved, moderately stout, slightly depressed at the base, about as long as the head and 

 prothorax, closely striato-punctate and also carinate in the c? , longer and very sparsely, finely punctate 

 from near the base in the $ . Prothorax strongly transverse, gradually and obliquely narrowing from 

 the base, abruptly constricted towards the apex ; closely, rather coarsely punctate, except along a smooth 



* St. Vincent, WX, ma; 

 angularis, Champ, (p. 319). 



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