thorax broadest m the middle, indistinctly margined, small, shining, bright reddish- 

 yellow ; thorax and elytra equidistantly tuberculated. Hab. Caucasus. 



Ptilium Oertzeni. -Eyea black, moderately convex, with 8-10 distinct large facets ; 

 thorax widest near the middle, sides rounded, closely tmberculate in transverse rows, 

 pitchy black ; elytra separately rounded at the apex. Hab. Griechenland. 



Some n| tin foregoing species are described at length by Herr Flach, and figured, in 

 the Wien. Ent. Zeit. vi. 1887, pp. 177-180, pi. ii.— Ed.] 



In Wien. Ent. Zeit. vii. 1888, p. 103, Dr. Flach described the following species of 

 / i ichoptt i i/.r : — 



Trichopteryx rufilabris. — T. lata, Mot -eh. exacte fere statura, lata, fere quadrata, 

 oapite thoraa qui nigropiceis, elytris atrorubentibus. margine extrema, labro superiore, ore, 

 antennis unicoloribus, pedibusque bete rufi oentibus; thorace toto et omni superficie 

 transversim retieulatis, tuberculis modicis, ordinibus plus minusve arcuatis, transversis, 

 baud dense obtectis, et minus dense fulvo-pilosis ; caput oculis minoribus, ocellis c.c.a. 20 

 visibihbus ; ctetera omnia T. lata similia ; thorace paulo ante angnlos posticos latissimo ; 

 elytris latiore, flavo-marginato ; elytris latitudini aquilongis; corp. long. 0-92, lat. 0-5(3 mm. 



Patria. Talysch, Lenkoran. — Leder com. Reitter. 



This species might be taken for /'. lata, but can easily be distinguished by the con- 

 spicuous reddish yellow colour of its mouth, pale yellow antennae, more shining surface, 

 pecially by the eyes, which are only hall' as large, and by the dark red colour of the 

 elytra. 



In the same paper (pp. 101, 102 1, this author described at length the following four 

 species : — 



1 'til i urn Sahlbergi. 

 >'. Hopffgartmi. 



,, Led>-ii. 

 ,, Oertzi ni. 



But these have been already noticed in this Preface. 



In the Dents. Ent. Zeit. xxx. ]8S(i, p. 248, Dr. Flach described at length Ptilium 

 CEdipus .' but I found, from types kindly sent by Heir Reitter, that this species is identical 

 with one described by myself in the Ann. and Mag. Nat. Hist. 1889, p. 195, under the 

 name of I'lilium <,l,c,i cation. Dr. Flach's mime must therefore be used in future for this 

 species. 



L'Echange, Revuo Linncenne (Lyon), No. 50, Feb. 1889, p. 4. 



In this periodical Mr. Key very briefly notices many Trichopterygida, which he 

 considers to be new species, but it is not possible to form any opinion of their validity 

 from the short remarks appended to their names. All that I can do is to transcribe his 

 remarks, and to leavt the identification of the species to those who may have an oppor- 

 tunity of examining the original types. 



Ptenidium obsoletum. Rev. — Nearly allied to Pten. formicetorum. It is rather 

 larger and more convex ; the punctuation of the elytra is a lmost obliterated, and without 

 order or si i ii - 



Villie-Morgon ; St. Raphael. 



Ptenidium varicome, Rey. — Appears to have the antenna? rather longer and rather 

 paler at the base than P.fusckorne. It is probably a variety. 



Bugey. 



Ptilium nitidulum, Rey. — More depressed, more shining, and less pubescent than 

 /'. him n. to which it is very closely allied. The prothorax is more distinctly margined at 

 the base, and tin elytra more rugose, more parallel, and more obtuse at the extremity, etc. 



Lyon ; Villie-Morgon. 



