326 Mr. G. J. Arrow on a Contrilmtion to the 



setoso ; pygiclio grosse et crebre punctato ; tibiis aiiticis acute tri- 

 dentatis. 



Long. 11 "5 mm. 



Hal. BuKMA : Carin Cheba {Feci.). 



Two specimens, both males, were found at an altitude of 

 900-1,100 m. in December 1888. 



The species is very like the preceding but smaller and 

 the prothorax is relatively narrower, the front angles 

 sharper and the hind angles less broadly rounded. The 

 elytra are very coarsely and deeply punctate-striate and 

 the membranes to which their apices become abruptly 

 reduced are broad and conspicuous. The pygidium is 

 very strongly punctured and the front tibiai sharply tri- 

 dentate, without trace of an additional tooth as in the 

 other two species. 



M. monodon, Fairm., was described from Cochin China 

 but two specimens brought by Signor Fea from Rangoon 

 are almost certainly indistinguishable from it. The 

 membranous apices of the elytra, which are the most 

 peculiar feature of the genus, are not mentioned by Fair- 

 maire, but in this species they are so slight as not to attract 

 attention. 



Of the remaining Oriental forms attributed to Hetcrony- 

 cJins, H. morator, F., jnvamis, Burm., sumatrcnsis, Fairm., 

 and Lansbcrgci, Schauf , are obviously very distinct from 

 it. The last is unknown to me, but the others are 

 congeneric, and for these and other species und escribed I 

 constitute the following new genus : — 



PSEUDOHOMONYX, n. gen. 



Mandibles broad, prominent, not acuminate; rounded or gently 

 sinuated at the side. Maxilbe armed with four strong equal teeth. 

 Labium smooth, snlcate behind, broad and sinuated in front, with 

 the palpi inserted at the margins. Clypeus trapeziform, straight in 

 front, with the angles rounded. Head entirely unarmed in both 

 sexes. Prothorax regularly rounded at the sides, with the posterior 

 angles completely rounded off. Proiiygidium withoiit stridulating 

 files. Legs very spinose, with the tarsi slender but not long. First 

 joint of the hind tarsus elongate. Front tibia strongly tridentate : 

 middle and hind tibiae flattened, gently crenate and strongly spinose 

 ^t the extremity. 



