314 Mr. D. Sharp's revision of the 



thorax and head, and some slight differences in the 

 peculiarities of the structure of the head in the male. 

 Only one individual has been found ; it is entirely yellow, 

 probably from being rather immature. 



Chiuzenji, Aug. 21st, 1881. 



Batrisus stipes, Sharp. 



Sharp, Trans. Ent. Soc. Lond., 1874, p. 115. 



This has not been found again, and knowledge of the 

 species is limited to two female examples, whose locality 

 has not been recorded. 



VII. 1st dorsal segment rather elongate, as long as the three 

 following together-, side-piece rather narrow . Hind 

 tibiae, with elongate apical spur. B. solitarius and 

 B. gracilis. 



These two species, known only by unique examples, 

 differ from the others by their more slender build and 

 greater elongation of the basal dorsal segment. They 

 differ from Amaurops, Keitter, by the possession of well- 

 marked eyes, and by their less elongate hind body. 



Batrisus solitarius, n. s. 



Subgracilis, castaneus, nitidus, tenuiter sed evidenter 

 pubescens ; antennis subgracilibus, articulo ultimo elon- 

 ga,to, acuminato ; prothorace ante basin foveolato, medio 

 absque canalicula, lateribus longitudinaliter impressis ; 

 abdomine segmento primo dorsali sat elongato, medio 

 utrinque plicula elevata, brevi. Long. 2^- mm. 



A distinct species, making some approach in appear- 

 ance to the species of Amaurops. Antennae with the 

 basal joint moderately long, stout ; 2nd more slender, 

 but stouter than the following, longer than broad ; 

 3 — 8 rather slender ; 9th scarcely broader, but longer 

 than the 8th, rather longer than broad; 10th not 

 stout, subquadrate ; terminal joint much larger, elongate, 

 and acuminate. Head narrowed behind the rather small 

 eyes, which are situated in the middle of the sides ; all 

 the vertex broadly impunctate and shining ; the antennal 

 tubercles elevate and rugose ; the vertex carinate in the 

 middle and conspicuously foveolate on each side ; the 

 outside also carinate, the outstanding setae of the genae 



