Mr. A. Murray on Coleo]ptera from Old Calabar. 93 



I have come to the conclusion that the allotment of only three 

 ridges to this species is a mistake on the part of Mr. Thomson. 

 In all the allied Lycidge the ridges are usually the same in 

 number ; and it seems by no means probable that in one sec- 

 tion there should be two different species, so nearly allied 

 to each other, yet having different numbers of ridges on 

 the elytra. In many, however, and in particular in this spe- 

 cies, the four ridges are not always observable at the base, 

 the fourth being sometimes concealed or, rather, occupied 

 by the shoulder ; but nearer the apex they are all four always 

 very visible. 



Dascyllidae. 



Ptilodactyla, Latr. 



Ptilodactyla punctatostriata, 



Nitida, castanea, elytris dilutioribus ; thorace distincte et 

 crebre leviter punctato ; elytris punctato-striatis, interstitiis 

 levissime sparsim punctatis. 



Long. 2 J lin., lat. j lin. 



Shining, chestnut-coloured, the elytra a little paler than the 

 thorax. Head finely punctate and slightly pubescent. Thorax 

 distinctly and (under a lens) rather deeply and thickly 

 punctate, most closely on the sides and angles, not so closely 

 but with larger punctures on the disk. Scutellum heart- 

 shaped, with two raised lobes at the base, finely punctate. 

 Elytra punctate striate, base and shoulders less so, the inter- 

 stices finely punctate ; the striae disposed obliquely, except the 

 sutural stria, which is straight; the shoulder separates two 

 striae, which unite about halfway down, those on each side of 

 these again unite concentrically below them ; the stria next to 

 the sutural one is short, and fills a space left at the base by 

 the oblique direction of the others. 



This is another instance of the occurrence at Old Calabar 

 of American forms (most nearly related to Brazilian types). 

 Ptilodactyla is strictly an American genus, and has not hitherto 

 been recorded as met with in the Old World. 



COPTOCERA*, nov. gen. 



(Fig. 5; and details, figs. 6-11.) 



Mentum subtriangulare, apice truncato. Ligula quadrilobata, 

 lobis duobus utroque latere conicis magnis ciliatis (fig. 6). 

 Maxillae lobo exteriore in duos lobos diviso rectos tenues et 

 ciliatos ; lobo interno lato, apice truncato, forsan semifisso 



* From KOTTTo), / cut, and Kepas, a horn, in allusion to the truncate termi- 

 nation of the last article of the antennae. 



