1882.] 63 



my GyclotJwrax cordaticolUs (Ent. Mo. Mag., vol. xv, p. 156), though 

 there is a slight discrepancy in respect of size : I having stated it as 

 " Long. 4i — 5 mm " (I have since taken a specimen 6 mm.), and Dr. 

 Karsch " 5 — 7 mm ;" and also the linear punctuation near the suture 

 is stronger, according to Dr. Karsch, than as characterized in my 

 description. In a recently procured series, however, I observe that it 

 varies somewhat in intensity. 



Platynus planus, Karsch, is apparently mj Anchomenus erro (Ent. 

 Mo. Mag., vol. XV, p. 151). The Doctor's description is, however, 

 puzzling. The " humeins productis''^ of the Latin diagnosis becomes, 

 in the German description, " die schultern gerundet ;" again, P. planus 

 is distinguished from P. allipes, Fab., " durch den liinten starker 

 verschmdlerten Prothorax,''' but, further on, it is said of the jDrothorax, 

 " hint en plot zlicJi, doch niclit stark, verschmdlert.'" The only difference 

 worth notice between my description of A. erro and Dr. K.'s of P. 

 planus, consists in mj''^ prothorax leviter transversus,^^ YthWe the doctor 

 has " longior quam latior.''' Careful measurement of a series of speci- 

 mens of A. erro gives the following result : the proportion of the 

 greatest width of thorax to length down central line is as 20 to 19 

 [this is my usual way of measuring] ; greatest width of thorax exactly 

 equals greatest length — which occurs a little on either side of the 

 central line. 



Colpodes odoocellatus, Karsch, is obviously my Anchomenus Sharpi 

 (Ent. Mo. Mag., vol. xv, p. 122), although my description hag " a?^_$rwZ^s 

 humeralihus rectis,''^ and Dr. Karsch's " humeris rotundatis.'''' In 

 describing, I compared the insect with its ally, A. rupicola, Mihi, in 

 which the sides of the elytra are rounded into a curve continuous 

 with the base (whereas, in Sharjn, they are straight, and, speaking 

 roughly, at right angles with the base), but I acknowledge that the 

 actual corners themselves are rounded off. 



Anisodactylus cunentus, Karsch, seems to agree exactly with my 

 Atrachycnemis Sharpi (Ent. Mo. Mag., vol. xv, p. 120), as does Prome- 

 coderus fossulatus, Karsch, with Disenochus terehratus, Mihi. 



The two species of Carahidce that I have observed most commonly 

 near Olinda are my Cyclothorax scaritoides and montivagus. These do 

 not appear to be the subjects of any of Dr. K.'s descriptions, but I 

 observe in his list of previously described species taken by Dr. Einsch 

 at Olinda, Oopterus plicaticoUis, Boisd., and Olisthopus insularis, 

 Motsch. Now, it happens that my G. scaritoides is so much of the 

 general aspect of Oopterus, that I went to the trouble of hunting up 

 O. plicaticoUis long ago, in the " Voyage au Pole Sud," and satisfied 



