180 Mr. G. J. Arrow mi Flcurostid Lamcllicoms from 



sexual difference in the pnncturation or the minute setae 

 upon the elytra. The species, of which I have seen more 

 than forty examples, is in general very constant in size, 

 although the female is slightly larger than the male. 

 Two male specimens, however, are considerably larger 

 (13 millimetres) than the dimensions given above. There 

 are perhaps other slight differences, but until these are 

 confirmed by further specimens it seems inadvisable to 

 regard them as specific. 



Lcucothyreus vincentioi was found very abundantly in 

 fungi about the month of December. In June a few 

 specimens (males) were found beneath decaying leaves. 



DYNASTID.E. 



Gyclocephala signata, Drury. 



This species, very common in Central America, ranges as 

 far as the states on the northern border of South America. 

 Mr. Smith's specimens which were found only in Grenada, 

 where they flew in abundance to light, show, at least in 

 size, the nearest affinity to those from the latter. The 

 insect has an evident tendency to form local races and the 

 Grenadan individuals are as a whole more marked with 

 black than usual. 



C. dimidiata, Burm. 



This also occurred in Grenada alone, coming in numbers 

 to the light at niglit. It has hitherto only been recorded 

 from Central America and Lower California. 



C. vincenti/&, sp. u. 



Preecedenti valde affiiiis, ovata, rufo-castanea vel nigro-castanea, 

 supra partim aut toto nigra, protliorace cum pygidio ssepe rulis 

 elyti'isque ad basin et prope margines laterales dilutius brunneis ; 

 clyjieo paulo longo, trapezoidali, truncato, ad marginem excepto 

 fortiter punctato, fronte rare punctate, prothorace nitido, subtiHter 

 punctate ; elytris sublineato-punctatis ; pygidio minute granuloso ; 

 pedum anticorum tibiis fortiter tridentatis, ^ ungue interno fortiter 

 lobato. Long. 9-I25 mm. 



HoMtat. St. Vincent. 



This insect, one of the very few members of its large 

 genus which depart from the usual testaceous ground- 

 colour, is evidently the representative in St. Vincent of 



