514 Mr. G. J, Arrow on the Laparostict Lamellicorn 



Fsamnwbius parvulus, Chevr. 



This minute insect was very commonly found on the 

 wing at sunset in both St. Vincent and Grenada. The 

 species was described from a single Cuban specimen which 

 I have not been able to trace, but M. Oberthiir has 

 kindly sent me specimens from Cuba which there is no 

 reason to doubt belong to Chevrolat's species, and I am 

 not able to distinguish our series from these. The 

 Fsammoli'us from Mexico and Guatemala identified by 

 Bates as P. iiarvtdus, although closely related, is not the 

 same, and the Amazonian specimens also ascribed to it by 

 him, and which I have seen in M. Oberthllr's collection, 

 represent a third species. 



For the sake of clearness it may be well to re-name the 

 Central American form shortly described by Bates, which 

 I will call P. Batcsi. This is generally larger than 

 P. ][)arvulus and considerably stouter, the width of the 

 elytra together being greater than that of the thorax, 

 whereas they are of equal width in Chevrolat's species, 

 producing a very characteristic linear form. Tlie liead 

 and prothorax are less markedly darker than the elytra in 

 P. Batcsi, and the thoracic puncturation is sparser. 



Scvprosites grenadensis, sp. n. 



S. parcdlelo affinis sed paulo minor, minus grosse punctatus. Rufo- 

 piceus, capite prothoraceque magis rnfescentibns, protliorace liaud 

 crebre sed irregulariter punctate, elytris profunde striatis, striis 

 fundo punctatis, metasterno late canaliculate, segmentis abdominali- 

 biis subtus minutissime punctatis ; tibiis anticis extus minute 

 serratis, dentibus tribus majoribus. 



Long. 4 mm. 



Hah. Grenada, Grand Etang (1900 feet). 



A single specimen only was found under the bark of a 

 decaying log. Its colour is distinctly red on head and 

 prothorax, but this is probably not a constant specific 

 feature. It differs from >S'. jtja7'«//e/ais, Harold, of Central 

 and South America, by its smaller size and finer punctura- 

 tion. The elytral striise are deeper, and the punctures of 

 which they are formed less distinctly traceable. The 

 abdomen, which is smooth in >S'. ^j«?'«//e?^<^s, is very thickly 

 and finely punctured. As in the other species, there is a 

 minute tooth between the two upper of the three large 

 teeth of the anterior tibia. 



