294 INSECTA MADERENSIA. 



district of the Fanal during July of 1850, I was induced by the Eev. R. T. Lowe 

 to visit a icood of these monstrous Euphorbias, immediately below the round 

 crater -like basin of the Lagoa, on the descent of the mountain-road towards the 

 Ribeu-a da Janclla and Porto Moniz, — Avhen, much to my delight, I found the 

 entu'e substance of many of the older trees perforated by this elegant little AjjJm- 

 narthrum ; in conjimction moreover with a species of Mesites which hitherto I 

 have not elsewhere met with. It is not easy in fact to pronounce which afforded 

 me the greatest pleasure, — the sudden discovery of two novelties so interesting, or 

 the first sight of this unique grove of noble Euphorbias : both however had their 

 charms, and will long impart to that day a reminiscence peculiarly its own. This 

 is not the only locality however in which it has occurred to me ; for, ha'ving once 

 ascertained its halnts, I was of course on the look-out wherever the Eupliorhia 

 tnelUfera was to be traced, — and I subsequently procured it, although sparingly, 

 at the Ribeiro Erio likewise. Nevertheless it probably exists throughout most of 

 the upland regions in which the Eupliorh'm mellifera j^revails ; since, on the 10th 

 of January 1851, it was captvu'ed, by Professor Hcer, in considex'able numbers at 

 the Jardim da Serra, — where that j)lant is tolerably common. 



Genus 103. LEIPARTHRUM, Woll. (Tab. Y. fig. 9, ti Tab. VI. fig. 3.) 



Corpus minutiim, cylindricuni : prothornce ainplo convcxo, antice prodiicto haud scabroso sed plerum- 

 quc tubcrculis minutissiniis obsito : ebjtris apice rotuudatis iutegris : alls amplis. Antenna 

 (VI. 3a) capitate; scapo elongato clavato subflexuoso; funiculo 4-articulato, articulo primo 

 robiisto apice truncato, secundo et tertio minutis, quarto paulo latiore transverso ; capitulo soli- 

 dissimo clongato-ovato piloso, obscurissime quadii-aimulato. Lahntm obsoletum. Mandibula 

 (VI. Z b) cornea; validfc triangulares obtusa', intra apiccni dente parvo obtuso obseuro iustructse, 

 ad basin integra;. Maxilla (VI. 3 c) lobo singula latissimo bre\i rotundato setoso instructae 

 {interna obsoleto). Palpi subsetoso-conici ; maxillares minuti, articulis primo, secundo et tertio 

 bre\issimis transversis, ultimo longiore graciliore subconico ; labiales (VI. 3 d) longiusculi, 

 articulo primo crasso, secundo paulo breviore crassiusculo, ultimo elongato gracili subcyliudrico. 

 Liyula membranacea subelongata pilosa, basi angustata, apice truncata. Pedes brevissimi, parum 

 validi : tibiis compressis, apicem versus lev-iter dilatatis, anticis (V. 9 a, et VI. 3 e) simplicibus, 

 pasteriaribus (V. 9 i, et VI. 3/) subcurvatis extus 4-dcntatis, amnibus ad apicem internum spin4 

 (in anticis elongata robustissima valde obtusfi recta, in posterioribus minore angustiore leviter 

 acutS, subrecta) armatis : tarsis 4-articulatis, articulis duobus baseos longiusculis crassis sub- 

 wqualibus (primo paulo longiore basi angusto subflexuoso, secundo apice obscure emarginato), 

 tertio minutissimo, quarto elongate unyuiculis simplicibus munito. 



A XetTrw relinquo, et apdpov artus. (Typus — Leiparthrum biiuberculatum.) 



At once distinguished from every modification both of the present and folloA^ving 

 families with whicli I am acquainted by its quach'iarticulatc feet ; — and from aU, 

 except Fohjyraplnis, Xy later us and CrypludKS, by its fom'-jointcd fimiculus. As 

 regards these three genera, however, — apart from its tarsi, wliich constitute its 

 most anomalous feature, — it may be known; first, from Toli/ffrajifiiis, by its 



