INSECTA MADERENSIA. 49 



looking the Meyo Metada, between the Ice House Peak and the Pico dos Arieros, 

 at an elevation of between 5000 and 6000 feet above the sea, where, dm-ing January 

 and Pebruary of 1849, I detected sevei-al specimens, in company with Trechus 

 alticolus, beneath stones. It would seem to be the representative in these islands 

 of the European A. patricia, which I have captuxed in situations precisely similar 

 on the Swiss Alps. It presents however abundant distinctive characters to 

 separate it from that insect,^as, for iastance, its more parallel and flattened form, 

 the impunctate and comparatively lightly impressed striae of its elytra, and the 

 less acute posterior, and more produced anterior angles of its prothorax ; added to 

 which, its uniformly pale piceous hue would tend even further to separate it. 

 Prom its size and general outline it might at first sight be almost mistaken for a 

 Sarpalus ; nevertheless its male tarsi being dilated in the anterior pau' alone is of 

 course at once sufiicient, apart from less e\ddent diiferences, to remove it from the 

 whole of that extensive group. 



(Div. 3. HARPALIDEA.) 

 Genus 17. ANISODACTYLUS. 



Dejean, Spec, des Col. iv. 132 (1829). 



Cor])us mediocre, oblongum : prothorace subquadrato : alis amplis. Antenna filiformes, capitis pro- 

 thoracisque longitudine, articulo primo sequeutibus robustiore, secundo brevi. Labium quadra- 

 turn, antice leviter emarginatum et setis paucis longissimis instructum. Mandibula breves, dente 

 medio iuterno obtuso armatse, basi denticulatse. Maxillce biloba; : lobo externo palpiformi biarti- 

 culato: interna acuto incurvo, apice iincinato, intus valde ciliato. Palpi filiformes, articulo 

 ultimo fusiformi-subtruncato. Mentum transversum, antice profunde emarginatum et dente 

 medio nullo instructum. Ligula apice trancata; paraglossis coriaceis acuminatis. Pedes validi : 

 tarsis anterioribus in maribus articulis quatuor subtus dense spongiosis, secundo, tertio et quarto 

 valde dilatatis, primo minore : unguiculis simplicibus. 



Anisodactyhis differs from Barpalm in having the first joint of the fom- anterior 

 tarsi of its males small and narrow, whilst the following three are greatly dilated : 

 then* under surface moreover is destitute of the double row of seta? usually apparent 

 in the present division and in the Fterostichidea, beuig densely spongiose instead, 



in which respect it assimilates the typical members of the Chlaniidea. Its 



mentum, likewise, has no tooth in the centre of its emargiaation, a structure of 

 extremely rare occ\irrence amongst the Harpali, in which the tooth, although 

 obtuse and short, is nearly always distinct. 



36. Anisodactylus binotatus. 

 A. ater, antennarum basi et palporum tarsorumque apice rufo-ferrugineis, elytris profunde striatis. 

 Long. corp. lin. 5-5 i. 



n 



