158 INSECTA MADERENSIA. 



pubescent maxill83 and its deeply bilobed antepenultimate tarsal joint would seem 

 to be peculiarly adapted. It is exceedingly rapid in its movements, running with 

 such immense velocity when exposed to the light as not to be seciu'ed without 

 some degree of dexterity. Professor Heer informs me that he met with it sparingly 

 on the flowers of a Calocasia, in Funchal, during the spring of 1851 ; and I have 

 lately received a specimen from M. Dohrn of Stettin, communicated to him by 

 M. Hartunff. 



^O" 



Genus 55. L.ffiMOPHL(EUS. (Tab. III. fig. 7, 8 et 9.) 

 (Dcj. Cat. edit. 2. 315) Erich. Nat. der Ins. Deutsch. iii. 315 (184:8). 



Corpus minusculum vol parvuni, parallelo-eloogatum, plcrumque valde deprcssum : capite pro- 

 thoracequc stria longitudinali elevata utrinque ssepius instructis, hue angulis anticis plus minusve 

 leviter productis : alls amplis. Antenna vel (III. 8) filiformes et (praesertim iu maribus) lon- 

 giuscula?, vel (III. 7, 9) moniliformes breviores robustse et apicem versus sensim subincrassatse ; 

 articulo primo sat elongato robusto, secundo bren, reliquis modo (III. 8) latitudine a-qualibus et 

 lougitudiue subcrescentibus, modo (III. 7, 9) longitudine suba'qualibus et latitudine leviter 

 crescentibus (ultimo interdum subturbinato, aut potius ad apicem ipsum tuberculato). Labrum 

 (III. 8 a) porrectum, subscmicirculare, antice ciliatum. Mandihuhe (III. 8 b) validie, ad sum- 

 mum apicem bidcntata; et infra ajiicera excisce, basin versus niembrana tcnui auct?e. Maxilla 

 (III. 8 c) bilobse : lobo extemo lato, apice valde pubescenti : intemo minutissimo brevi angusto, 

 ad apicem acutissimo-uncinato. Palpi maxillares articulo primo minutissimo, secundo majore 

 crassiore subclavato, tertio brevi, iiltimo secundo vix longiore fusiformi basi truncate : labialcs 

 (III. 8 d) e scapis ligula; connatis surgentes, articulo primo minutissimo, secundo et ultimo 

 elongatis longitudine subrequalibus (illo subclavato, lioc subfusiformi basi truncato). Mentum 

 breve transversum, antice excavato-emarginatum. Liyula cornea, antice pilosa. Pedes sat 

 robusti : tibiis calcari terminali, praecipue iu anticis (III. 8 e), armatis : tarsis simplicibus (in 

 maribus heteromeris), articulo primo minutissimo a;gre observaudo, ultimo elongato unguiculis 

 simplicibus munito. 



In addition to the structure of their oral organs and feet, — amongst the details 

 of which the excessive minuteness of theu- (imciuated) inner maxillary lobe (as 

 though to connect them with the Trogositid(B, in which that lobe is obsolete), and 

 the heteromerous condition of the male sex should be especially noticed, — the 

 Lcnmophloei may be at once recognised by many external characteristics peculiarly 

 their own. Thus, their usually small size and exceedingly flattened bodies, in 

 conjunction witli the elevated submarginal stria wliich (although occasionally 

 increased by a second one) is seldom, if ever, entu'ely absent from the edges of 

 either theu* forehead or prothorax, as also the singidar tendency which a portion 

 of the species possess to have the terminal joint of theu* antennae so distinctly 

 tubercled at its apex as almost to seem (beneath a high magnifying power) to be 

 composed of two, are nearly sufficient, even alone, to separate them fi-om the 

 members of the allied groups. Nevertheless, in some other respects they present 

 considerable diversity inter se, — so much so indeed, that, were the extremes of form 



