196 On Coleoptera of the Clavicorn Families. 



leiifrth. The black spot at the base and apex of each elytron 

 is almost exactly round, but the enclosing yellow rings are 

 minutely produced along the elytral margins and the 

 anterior one is also toothed towards the suture and the 

 apex. 



The readiest positive means of distinguishing Episcapha 

 fortunet, Crotch, and E. taishoeiisis, Lewis, has not been 

 pointed out. In the former the eyes are rather close and in 

 the latter they are wide apart. Both species seem to exist 

 in China and Japan. 



Megalodocne chiyiensis. Crotch, is also very similar, but has 

 the second joint of the antenna longer and the lateral margins 

 of the pronotum thicker. 



Mycoti-etus tigrinus, Oliv., is distinct from the Central 

 American species described and figured under that name by 

 Mr. Gorham, in Biol. Centr.-Amer., Coleopt. vii. 1887, p. 48. 

 The latter may be called M. centralis. Besides the differences 

 noted by Mr. Gorham, it is a rather more massive species and 

 the metasternum, which is well punctured in M. tigrinus ^ is 

 very smooth. 



The Mexican form recorded as Mycotretus sohrinus, Guer., 

 by Mr. Gorham in the same work must similarly be dis- 

 tinguished from that Brazilian species. It is much smaller, 

 relatively shorter, the knees blacker, and the abdominal lines 

 more marked. It may be called M. cW sting uendus. 



Amhlyopus rubens, Hope (Gemm. & Har.), is a species of 

 Neotriplax very near N. lewisi, Crotch, but larger and with 

 longer antennse. 



Amblyopus prcepositus, Walk. (Gemm. & Har.), is 

 A. cinctipenm's, Lacord., and not A. vittatus, Oliv. 



Triplax browii, Pasc, belongs to the genus Cryptodacne 

 and is exceedingly near C. sytithetica, Sharp, from which it 

 seems to differ in its smooth elytra. 



Aulacochilus subrotunda, Macl., appears to be the same as 

 A. 4-pustulaius, F., as Lacordaire believed, but Macleay's 

 two specimens are of a peculiarly narrow form. 



Prepopharus spilotus, Gorh., is a species of Morphoides. 



Hoplaspis of Motschulsky, according to a specimen from 

 Bakewell's collection which I believe to be a cotype, is a 

 Tenebrionid of the genus ArrhenopUta. There can be no 

 doubt, I think, that Motschulsky was mistaken in regarding 

 all the tarsi as five-jointed. 



