363 



Sloane describes the elytral interstices of his sculpturatus as 



''closely punctulate," which pe?- se seems to settle the matter. 



New South Wales: Blue Mountains; elevation, 3,000 ft. 



LAMELLICORNES. 

 SERICOIDES. 

 Platydesmus. 

 p. (Huplonychaj ohscuricornis, Blanch. I have recently 

 met with a Flatydesmus on the Blue Mountains (New South 

 Wales), which, I feel no douot, is the true P. (Uaplonycha) 

 ohscuricornis, Blanch. I used the name, with hesitation, in 

 a former paper (Tr. R.S., S.A., 1907, p. 270) for a species 

 of the genus which is closely allied to this Bhie Mountain 

 one, but certainly not identical. The present insect is lar- 

 ger, and has its antennal flabellum black or very dark piceous 

 (in both these characters agreeing with Blanchard's descrip- 

 tion), also has the antennal flabellum of the male longer, 

 the head more closely and less coarsely punctured, and the 

 puncturation of the pronotum distinctly stronger and closer, 

 and the basal joint of the hind tarsi considerably shorter 

 in proportion to the ^nd joint. This discovery leaves the 

 P. ohscuricornis of my former paper without a name, and 

 accordingly I name and describe it as follows : — 

 P. punctulaticeps, sp. nov. Mas. Leviter ovatus; sat niti- 

 dus; supra subglaber, lateribus ciliatis; subtus pilosus; 

 subiridescens, colore variabilis (ferrugineus, plus minusve 

 picescens) ; antennis 9-articulatis, rufis, flabello 3-articu- 

 lato minus elongato (quam clypeus parum longiori) haud 

 arcuato ; capite minus crebre minus subtiliter punctulato : 

 prothorace quam longiori ut 13 ad 8 latiori, antice for- 

 titer angustato, supra subtilius minus crebre punctulato, 

 lateribus leviter arcuatis pone medium nonnihil sinuatis, 

 angulis anticis acutis posticis (superne visis) subrectis, 

 basi marginata utrinque sinuata; scutello fere Isevi; 

 elytris sat fortiter punctulato-striatis, striis haud gemin- 

 atim ordinatis, interstitiis sat fortiter convexis sparsim 

 punctulatis; pygidio subtilius minus crebre punctulato; 

 tibiis anticis extus tridentatis (dentibus 2 inferioribus 

 magnis, altero subobsoleto) ; tarsorum posticorum arti- 

 culo basali 2° aequali ; coxis posticis quam metasternum 

 multo brevioribus. 

 Feminae antennarum flabello quam clypeus multo breviori. 



The relation of this species to P. ohscuricornis, Blanch., 

 has been discussed above, under the name of that insect. 

 New South Wales: Sydney. 



