MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 261 



confused the species with Medonella ferrugetiea (Sunius ferrug incus), 

 which is somewhat similar in both structure and api)earance. Sv. 

 Bierig's figure of the two species shows them to be distinct but does 

 not prevent the uniting of Xenocharis with Sunius s. str. 



I have seen 240 examples of this genus from the West Indies. They 

 are assigned to nine species, of which four appear to be new. 



KEY TO WEST INDIAN SPECIES OF SUNIUS 



1< Head an;l prouotum with very dense ground sculpture 2 



Head and pronotum without dense ground sculpture, shining 3 



2. Elytra normally, moderately coarsely punctate ; less than 3 mm. long. 



8. debilicornis 

 Elytra impuactate, with rather dense rounded tuberculi ; 4 mm. long. 



9. terresi 



3. Pronotnm more or less distinctly punctate 4 



Pronotum finely tuberculate 7. weberi 



4. Eyes large, at less than twice their length from base 5 



Eyes small, at more than twice their length from base 6 



5. Pronotum with median smooth stripe not canaliculate 6. curtulus 



Pronotum without median smooth stripe, but finely canaliculate posteriorly. 



5. oblitus 



6. Punctures of head usually separated by less than their diameter 7 



Punctures of head usually separated by more than their diameter 8 



7. Sides of pronotum distinctly converging behind ; length about 4 mm. 



4. darling-tom 

 Sides of pronotum nearly parallel ; length 2 to 2^/4 mm 3. occipitalis 



8. Head with moderate, somewhat umbilicate punctures ; elytra not b^-oader 



than long 1. cakleyi 



Head with fine punctures ; elytra broader than long 2. ferrugineus 



1. SUNIUS CAKLEYI, new species 



Description. — Rufopiceous, basal two-thirds of elytra indefinitely 

 testaceous, abdomen castaneous with apex testaceous. Head one- 

 thirteenth wider than long; base emarginate only above the neck; eyes 

 very small, separated from base by over three times their length ; sides 

 slightly arcuate, basal angles rounded ; labrum with a small triangular 

 emargination at middle but without trace of denticle; gular sutures 

 moderately separated, rather feebly converging apically; with large 

 but not very distinctly umbilicate punctures generally separated by 

 their diameter or more, with a smooth midline ; without ground sculp- 

 ture. Pronotum one-twelfth wider than long, as wide as head ; sides 

 feebly converging posteriorly ; with punctures similar to those of head 

 but denser, middle stripe indefinite, very vaguely irregularly chan- 

 neled posteriorly; without ground sculpture. Elytra one-eighth 

 longer than wide, a trifle wider than pronotum ; surface uneven, punc- 

 tures scarcely evident ; without ground sculpture. Abdomen finely but 

 sparsely tuberculately punctate. Male, apex of seventh sternite trun- 



