l02 Mr. Martin Jacoby's notes on some 



The elytral subapical ridge in this species is the only instance 

 known to me of such a structure amongst the Halticickc. Two 

 specimens, apparently of both sexes, are contained in my col- 

 lection. 



NOTES ON SOME SPECIES OF GALERUCIDiE. 

 By Martin Jacoby, F.E.S. 



Stenoplatys (Cceligethes) robustus, Allard. 



This species, described by M. Allard in tiie Comptes-rendus 

 of the Belgian Entom. Soc. for 1889, is, as I have already 

 remarked, wrongly placed in Stenoplatys. The latter genus was 

 founded by Baly on an African species, and is identical with 

 Galenica incea, Fabr., placed in Genninnger's Catalogue in 

 Diacantha. In Stenoijlatys the thorax has two deep fovepe at the 

 middle of the disc ; the elytral epipleur?e are broad, and continued 

 and gradually narrowed posteriorly. Chapuis, in his diagnosis 

 of Stenoplatys, under his group of Platyxanthince, gives the shaj)e 

 of the thorax as one-half broader than long ; but in his detailed 

 description of the genus he speaks of it as being twice as broad 

 as long (the latter is in reality the case). Stenoplatys rohustus, 

 AIL, inhabits the Philippine Islands, and belongs to my genus 

 Coeliyetlies (Notes, Leyden Mus., 1884). The thorax in this 

 genus is short, transverse, the disc rather convex and without 

 depressions ; the elytra are convex, without basal depressions, 

 and their epipleurae are narrow and nearly disappear entirely 

 below the middle. I possess another very closely allied species 

 from Java, of more depressed shape and of entirely testaceous 

 colour, which I have lately described as C. unieolor. In my 

 diagnosis of Co'ligetJies I have described the metatarsus of the 

 posterior legs as being as long as the following two joints to- 

 gether ; it is, however (as rightly given by Allard), of the length 

 of the three following joints. 



Cryptocephalus ruficollis, Fahr. 



The type of this species, described from the Banks' collection, 

 is contained in the British Museum ; an examination of the 

 specimen proves it to belong to the Galerucidce, and not to 

 Cryptocephalus at all. Olivier has described the species also, 

 referring it rightly (not wrongly, as Suflrian says) to that of 

 Fabricius. The habitat of the insect is given as St. Helena ; 

 some time ago I received from the Museum at Cape Town 

 another specimen, and obtained at the latter place, so that it 

 remains somewhat doubtful whether St. Helena is another locality 



