340 Rev. A. Matthews on 



America by T. hidilatata^ in which the thorax and elytra are 

 separately dilated ; from both of these T. grenadensis is 

 distinguished by its small size and short broad form. 



Trichopteryx dubitata, sp. n. 



L, c. 0"87 mm. Elongata, angusta, convexa, pallida castanca, oculis 

 nigris, aureo-pilosa ; pronoto brevi ; elytris perbrevibus, his atque 

 pronoto ad media latissimis ; antennis longis atque pedibus flavis. 



It is doubtful whether the pale colour of this single speci- 

 men may not have been caused by immaturity ; but whether 

 this is or is not the case, its long narrow shape, short thorax 

 and elytra, long antennre, and stout legs sufficiently distin- 

 guish T. dubitata from the rest of its genus. 



It is allied to T. Edithia and belongs to the same group. 

 It was found in St. Vincent. 



Actinoj)teryx fucicoJa^ AUibert. 

 Actinopteryx fucicola, AUibert, Rev. Zool. p. 52 (1844). 



Three specimens of this insect were found in Grenada by 

 ]\rr. Smith, and it had previously been taken in the United 

 States by ^Ir. G. R. Crotch. 



A. fucicola is one of the most universally distributed species 

 in existence; it occurs in many parts of Europe, Africa, and 

 America, and although I have not seen any examples from 

 Asia, yet as it is found on the European and African shores 

 of the Mediterranean, there can be little doubt of its existence 

 on the Asiatic coast. This species seems to contradict the 

 common theory of the influence of climate on differentiation, 

 since in my own collection there are specimens from Ireland, 

 where it was first discovered by ]\[r. Ilaliday, many parts of 

 England, France, Belgium, Italy, xVlgcria, ^lorocco, the 

 Atlantic Islands, North America, and now from the West 

 Indies, which all persistently adhere to the normal type. 



Smicrus Jilicornis, Fairm. et Lab. 



Smicriisjilironih-^, Fairm. et Lab. Fn. Fr. i. p. 3:10 (18.")4). 



One specimen of this insect was found by Mr. Smith in 

 Grenada. S. jiUcornis has long been known to inhabit botli 

 North and South America ; in both these regions it was taken 

 many years ago by Dr. Schaum, and has recently been often 

 niet with in the United States. 



