78 Mr. Gilbert J, Arrow's CoiUributiou lo the 



CJeniis Clemmus. 

 For Exysnia parvida Gorh., which has eleven-jointed 

 antennae, Cziki has made another genus, Farexysma. 

 Cziki, who evidently did not know the insect, liis descrip- 

 tion being merely taken from that of Gorham, has separated 

 it widely from Clemmus, with which in my opinion it should 

 be united. The genus Clemmus is distinguished by the 

 possession of three-jointed tarsi, but when carefully mounted 

 and examined it becomes evident that the apparent basal 

 joint consists really of two joints closely united, and it is 

 very difficult to maintain any dividing line between this 

 and closely allied forms in which the tarsi are distinctly 

 four-jointed. There can be no doubt as to the very close 

 relationship of Gorham's species to the typical Clemmus 

 troglodytes, and another insect widely removed by Cziki, 

 although also congeneric, is Alexia ulkei Crotch, Cziki's 

 " Conspectus " of the Mycetaeinae contributes nothing to 

 the elucidation of its subject. Parexysma, for example, 

 having first been referred to the section characterised by 

 the absence of a sutural stria is then particularly distin- 

 guished by the existence of such a stria. 



Trichopsephus, gen. nov. 



Corpus globosum, ubique setosuin, pedibus teiiuibus, taisis fili- 

 foruiibus, quasi-triartitulatis. Prosternum productum, truiica- 

 tura. Pronoti basis lobatus, inaigiuatus, margo lateralis anguste 

 incrassatus, medium liiiea iiicisa teiiui transversa, retrorsmu ad 

 basin producta, proditum. Antennae tenuissimae, piliferae, 9- 

 articulatae ($) vel 10-articulatae (J), articulo 1° longo, curvato, 2° 

 minus elougato, tribus ultimis ovalibus, laxissime comiexis, reliquis 

 minutis, plus minusve elongatis. 



This very remarkable genus was strangely overhjoked 

 by Gorham, who ascribed two species of it to different 

 genera. The first, Exysma tenuicornis Gorh., may be 

 regarded as the type of the genus. The other, from the 

 island of Grenada, was called by him Dtalexia jmvicti'pennis. 

 The genus approaches Micropsephus, but has very strongly- 

 marked pecuharities. The antennae are extremely slender, 

 with a long curved basal joint, and the last three joints 

 oval, almost ahke, not large, but strongly differentiated 

 from the rest in size and shape, clothed with bristhng hairs 

 and remarkably loosely connected with each other. The 



