DOLICHOPUS. 173 



the tarsi, and the exterior joints of the fore tarsus entirely, blackish ; 

 the femora with long hair, the middle pair with a single spine in front, 

 the hind pair 4-6. In the male the fore metatarsus is glossed with 

 white, very slender, dilated at the tip, nearly twice as long as tlie suc- 

 ceeding joints together; Ihw ffi'cp black, dilated, strongly feathered 

 above with black, the tip of the last with white, hairs. 

 On sandy coasts. (E. I.) 



40. ammobates. ;>/// mipes, Pin. dol. 14. 13 (1823) ; Stn. ; Sig. ; 

 Ztt. Obscure an fhorace ferrui/'nioso, antennis nigris, articulo 

 primo sub tits Jntco,fcinoribi(s a pice, tibiix et metatarsis favo-ferrityii/eix, 

 leiiioribus posticis pluri-spinosis, nlis vena transversa puuctoquc fuscis; 

 Max. tarsi a at id articulis c.rlcrioribus atris pennatis, hypostomate ar- 

 (jenteo ; Fasm. hypostomate cano. Long. 2^; alar. 4-^ lin. 



Dark bronzy. Face silvery-while in 'male, dull whitish in female. 

 Antenna black; frst joint tawny yellow, blackish on the upper edge; 

 third rather ovate. Thorax dusted with ferruginous. Wings dark 

 hyaline ; the slightly curved discal transverse vein shaded with brown, 

 and a brownish dot on the flexure which lies beyond the middle of the 

 subapioal vein. Abdomen chequered. Lamellae dusky, rather oblong, 

 the cilia long ; forceps prominent. Coxa3 and femora greenish-black 

 with hoary gloss ; femora at the tip, the middle pair to the half-length, 

 fgmymoiU-yeUov ; tibifc ami metatarsi the same, tipped with black ; 

 femora with long hairs, middle pair with 1 or 2 spines in front, the 

 hind pair 4-6. /// the male the fore metatarsus is a little longer than 

 the following joints together ; these deep black , feathered above. 



Inhabits sandy shores of the sea and lakes (in Sweden and 

 Germany). As it is very likely it may occur in these islands, 

 though not hitherto precisely distinguished from the allied species, 

 I do not venture to expunge it from the British lists. 



Obs. Since it has become necessary to change the original 

 trivial name, being preoccupied (see sp. 16), I have chosen to 

 substitute the name used by Stannius as generic, which cannot 

 be retained in that application, as it is preoccupied in Hymeno- 

 ptera. Should the group be still thought to claim generic rank, 

 the name Tachytrechus, applied to it by Stannius elsewhere 

 (id. 261), might be restored instead. 



41. consobrinus, (Ct. Guide). plumipes, Mg.zw.iv. 87. 22 (1824); 

 Mq. ; Hal. e. m. Obscure cenescens, thorace ferruginoso, antennis lu- 

 teis, articulo tertio nigro, femoribus apice, metatarsis anterioribus tibiisque 



JlavO'ferrugineis, femoribus posterioribus pluri-spinosis, alis vena trans- 

 versa punctoque fuscis, lineola costali atra prope basim ; Mas. tibia 

 antica mutica, tarsi antici articulis exterioribus latissimis atris antice 

 argentatis, hypostomate argenteo ; Foem. hypostomate griseo. Long. 2| ; 

 alar. 4^ lin. 



