from the Island of St. Vincent. 253 



single specimen of it was captured at St. Vincent by Mr. Fry, to 

 whom I have much pleasure in dedicating the species. 



Fam. (EdemeridsB. 

 Genus Ditylus. 

 Schmidt, in Linn. Ent. i. 87 (1846). 

 31. Ditylus pallichis, n. sp. 

 D. elongatus, cylindricus, pallido-testaceus (oculis, mandibularum 

 apice tibiarumque calcariis solis nigris), undique crebre punctatus 

 necnon longe et densissime pubescens ; oculis prominentibus ; 

 prothorace subcordato, subinaequaU ; palpis, antennis versus apicem 

 tarsisque vix obscurioribus. 

 Long. corp. lin. 3-7. 



The present Ditylits is so closely related to the D. concolor of 

 BruUe, from the Canaries, that, despite its much paler colour, I 

 had considered it at first as a mere geographical phasis of that 

 insect ; nevertheless, on comparing it carefully with an extensive 

 series of its more northern representative, I am induced to be- 

 lieve that we cannot safely regard it as absolutely identical with 

 it, though it is undoubtedly a very near ally. Thus, it is not 

 only of a much more pallid hue (being of a pale testaceous, and 

 entirely free from the beautiful orange tint which is always so 

 conspicuous in the Z>. concolor), but its pubescence is distinctly 

 longer and coarser (particularly behind), its eyes are more pro- 

 minent, its prouotum is somewhat less uneven, and the first 

 joint of its antennse is perceptibly thicker — a structure which is 

 very apparent at the base. The veins of its under wings, also, 

 are less robust ; and one or two of the minor ones, which are 

 easily traceable in the Canarian species, are, in the D. pallidus, 

 scarcely, if at all, visible. In stature it appears to be even more 

 inconstant, if possible, than the D. concolor; for whilst that 

 insect ranges from four to seven lines in length, the range of the 

 present is from three to seven, — the larger examples thus abso- 

 lutely more than doubling in size the smaller ones ! The six 

 specimens now before me were taken at St.Vincent, in the month 

 of October, " beneath trailing succulent plants," by Mr. Fry. 



Fam. Staphylinidae. 



Genus Isomalus. 



Erichson, Gen. et Spec. Staph. 838 (1839). 



32. Isomalus Hesperidum, Woll. 



Isomalus Hesperidum, Woll., Ann. of Nat. Hist. scr. 2. xx. 504 (1857). 



A single example of this insect was captured at St. Vincent 



by Mr. Gray during his day^s sojourn there in December 1856. 



