of the Roijal Physical Society. 299 



Platynodes, Westw. 



1. P. TVestermann^Westw. Trans. Ent. Soc. 1845, p. 278. vol. iv. 

 pi. 21. fig. A. PI. XVII. fig. 7. 



Niger, subnitidus ; capite magis nitido, antennarum articulis api- 

 calibus brunneis, superficie corporis lsevi ; singulo elytrorum 

 striis 7 simplicibus et gracillimis instructo, spatio inter striam 

 6 et 7 ad latera in carinam elevato, spatioque intra marginem 

 lateralem punctis parvis rotundatis impresso. 



Long. 13^ lin., lat. 4J lin. 



The insect I have from Old Calabar seems to be the same 

 species that has been already described and figured by Mr. West- 

 wood (loc. cit.). I have only received a single specimen, and I 

 find one or two trifling discrepancies between it and the figure 

 given by Mr. Westwood, as well as a typical specimen of P. Wes- 

 termanni in the magnificent collection of the Count Mnizseck in 

 Paris. These are the following : — The antennse in my specimen 

 are not quite so much thickened ; the anterior tarsi are less di- 

 lated; the scutellum is smaller, and the posterior angles of the 

 thorax are less salient. These may be mere sexual distinctions 

 or accidental variations. 



Mr. Westwood, in his generic description of this insect, says 

 that the abdomen has only four segments. I would express this 

 differently. It may only have four separable segments, but the 

 segments are in reality five, the first two segments being soldered 

 together, so that their line of separation is indistinct in the 

 middle ; but it is quite distinct and well marked at the sides. 

 This appears to be the normal state of matters in the Morionida 

 and Scaritidce. There is also a side-piece before the first seg- 

 ment, which may be viewed as part of another segment. 



Stereostoma, mihi (arepebs and arofjua). 



Corpus elongatum, parallelum et parum convexum. Caput 

 parvum, parum convexum, quadratum, pone oculos sine 



