()() INSECTA MADERENSIA. 



§ II. Tarsi antici maris articido peniiltimo leviter emarginato, suhcordato. 



43. Stenolophus dorsalis. 

 S. oblongus niger, prothorace subquadi-ato postice leviter attenuato, testaceo in discum late nigro. 



infuscato, elytris testaceis plaga postmedia communi magna plus minusve suffusa subcyanescenti- 



nigra ornatis, antennarum basi pedibusque testaceis. 

 Long, corp.lin. 1|. 



Carabus dorsalis, Tab. JEnt. Si/st. i. 165 (1792). 

 JIarpaJus dorsalis, Gyll. Ins. Siiec. ii. 16-t (1810). 

 Acupalpus dorsalis, Dej. Spec, des Col. iv. 416 (1829), 

 Stenolophus dorsalis, Erich. Kaf. der Mark Brand, i. 61 (1837). 



Habitat ad ripas fluviorum Maderensium, rarissime, — sub lapidibus ad " Forno de Cal " a meipso Julio 

 ineunte a.d. 1850 una cum Ophonu obscuro (sed multo copiosior) detectus. 



S. oblong, black, shining. Prothorax testaceous, with a large patch on the disk (which is sometimes 

 so much developed as to leave only the extreme margins paler) brownish-black ; subquadrate, and 

 a little narrowed behind ; with a faint dorsal channel ; and an obscure subpunctate fovea on 

 either side at the base. Elytra testaceous, with the region of the scutcllum occasionally, and an 

 elongated, more or less suffused, postmedial patch, common to both, bluish-black ; striated, the 

 strife being impunctatc. Leys, palpi and base uf antentue testaceous. 



Apparently extremely rare in Madeira, or at any rate local. The only spot in 

 which I have observed it is the Forno de Cal, near Sao Yinceute, where, on the 

 2nd of July 1850, I captured several specimens, in company with the hitherto 

 unique example of Ophonus ohscurus, from imder stones at the edges of the stream 

 immediately adjoining the famous limestone rock. Like the S. Teutonus, it inhabits 

 most parts of Europe, and is found likewise in the Canary Islands and in Algeria. 



Genus 21. BEADYCELLUS. (Tab. II. fig. 4.) 

 Erichson, Kdf. der Mark Brand, i. Gl (1837). 



Corpus parvum, plus minusve oblongo-ovatum : prothorace subquadrato : alis (in speciebus Maderensi- 

 bus) obsoletis. Antenna filiformes, capitis prothoracisque longitudine, articulo primo sequentibus 

 robustiore, secundo brcviusculo. Labrum (II. 4 a) subquadratum, antice truncatum et setis 

 paucis lougissiiiiis iustructum. Maiidibttla (II. 4 b) breves acutie, intus basi dcnticulatae. 

 Maxilla (II. 4 c) bilobse : lobo externa palpiforrni biarticulato : interno acuto incurvo, apice un- 

 cinato, intus valde ciliato. Palpi articulo ultimo penultimo majore, fusiformi-subacuminato. 

 Mentum (II. 4</) transvcrsum, antice profunde emarginatum ct dente medio acuto intcgro in- 

 structum. Ligula cornea, apice in typicis sinuata, rarius truncata; paraglossis membranaceis 

 subacuminatis, earn paulo superantibus. Pedes vix robusti : tarsis anticis in maribus articidis 

 quatuor dilatatis, subtus biseriato-setosis (primo ssepius subquadi-ato) : unguiculis simplicibus. 



Bradycellus agrees with Trechus in haidng the emargination of its mentum 

 toothed in the centre, and in its male tarsi being only dilated in the front pair of 



