Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 22 1 



to the section with overlapping thorax ; and I should place it 

 near curacinus and iiiyritu, but towards scitulus and alpinus." 



Fani. Trichopterygidag. 



Genus Elachys. 

 Matthews, in litteris. 

 Elachys abbreviatellus, Heer. 

 E. miiiutissiiiia, oblonga, pubescens, nigra, subnitida ; prothorace elv- 

 trorum latitudiue, ad latera rotuiidato, angulis posticis obtusis ; 

 elytris postice latiuscuhs truucatis abdomine paulo brevioribus ; 

 anteunis pallide fusco-piceis, basi pedibusque dilute testaceis. 

 Long. corp. lin. \. 



Habitat Maderam australem, sub foliis niarcidis et quisquiliis, liinc 

 nide vulgaris : in horto Bewickiauo ad " Palmeira," prope urbem 

 P'unchalenseni, abundat ; necnon etiam ad S. Antonio da Serra 

 parce cepit Dom. Bewicke. 



Trichopteryx abbrevlnteUns, Heer, Fauna Col. Helv. i. 375 (1841). 



curta, Gillm. in Sturm, Deutsch. Fauna, xvii. (1845). 



abbreviatellus, Erich., xN'at. iler Ins. Deutsch. iii. 23 (18-48). 



Titan abbreviatellus, Matthews, in Zool. xvi. 6110 (1858). 



E. excessively minute, narrowish, oblong, and black; closely 

 roughened (but scarcely, perhaps, punctured), densely clothed 

 with a decumbent silvery pile, and slightly shining. Head 

 rather large and wide. Prothorax a good deal (and about 

 equally) rounded at the sides,— being, therelbre, narrower before 

 and behind; at the latter of which it is distinctly margined, and 

 of the same breadth as the base of the elytra. Elytra rather 

 widened posteriorly and suddenly truncated, where they arc a 

 little shorter than the abdomen ; and with their hinder margin 

 a little pale. Antennce pale brownish-pieeous ; their /jase, and 

 the leys, diluted-testaccous 



The present insect is perhaj)s scarcely separable from the 

 genus Acratrichis (i.e. Trichojjterijx) ; nevertheless, since it was 

 removed therefrom by the Rev. A. Matthews, in his ' Synonymic 

 Lis! of the British Trichopterycjida:' [vide 'Zoologist,' 6104, a.d. 

 1858), I have retained it as distinct. In his excellent Paper 

 on these minute creatures, it was assigned by Mr. jMatthews to 

 the genus Titan of Newman; but, having been informed by 

 him subsequently " that the term Titan must be altered,'' and 

 that he intends '• to propose Eladiys in its place," I have quoted 

 it accordingly. It seems to differ prnicii)ally from the members 

 of Tricliojjtrnjx proj)er by its hinder coxa) not being lamellated : 

 nevertheless it has many external features of its own, in outline 

 and general a.^|)ect, which would induce the sus|ncion that a 

 close examination of its oral organs would disclose other cha- 



