50 r March, 



Waterh.,* type Halfica galapagoensis Gr. R. Waterh., found b}' Darwin 

 on Charles Island, Galapagos, in 1835 ; it wants, however, the transverse 

 basal groove on the prothorax, and the anterior coxal cavities are closed 

 behind. The stout legs, strongly bilobed third tarsal joint, closed coxal 

 cavities, unarmed posterior tibiae, etc., separate Docemina from Bato- 

 pliila, and the non-foveate prothorax, stout legs, etc., distinguish it from 

 Mantura. The type of the present genus is not unlike the European 

 M. cTirysanthemi Koch, except that the prothorax and elytra are more 

 rounded at the sides. It seems strange that Gr. R. Waterhouse left this 

 beetle undescribed, after naming many of Darwin's Halticidae from 

 other localities, all of which were presumabh'' in his possession at the 

 time. The present insect is not included in Enderlein's list of Fuegian 

 beetles, in which one species only of Pliytopliaga is enumerated. 



Docemina crassipes, n. sp. 



Oblong-ovate, convex, very shining, aeneous above, mgro-piceous beneath, 

 the legs and antennae ferruginous, the apical joints of the latter slightly in- 

 fuscate. Head with an angulate impressed line between the eyes which is 

 connected in front with a small V-shaped mark ; antennae moderately long, 

 joints 7-11 distinctly stouter than those preceding, 1 and 2 also thickened, 

 7-10 not longer than broad. Prothorax very convex, broader than long, 

 rounded at the sides, slightly narrowed anteriorly ; closely, rather coarsely 

 punctate, transversely depressed on each side at the base above the obtuse 

 hind angles. Elytra oblong-oval, about as wide as the prothorax in (^ , broader 

 in 2 > rather coarsely striato-punctate to the apex, the interstices flat and almost 

 smooth. Ventral segments very sparsely, finely punctate. 



J. Basal joint of anterior and intermediate tarsi broadly dilated and 

 longer than in $ , that of the posterior pair also widened ; fifth ventral segment 

 depressed down the middle posteriorly. 



Length 2-2yV ^im. 



Sab. TiERKA DEL FuEGo [ d" $ , types] (C. Darwin); Chile, 

 East coast of Island of Chiloe [ d" ] {C Darwin). 



Described from three specimens. The label on the Chiloe male is 

 not in the same handwriting and cleaner than that on the others, and it 

 is just possible some mistake may have been made in ticketing the 

 Chilean example ? 



AuLONODEEA, n. gen. 



Antennae narrowly separated at the base, 11-jointed, long, slender ; pro- 

 thorax margined laterally, and with a deep, complete, transverse basal groove ; 

 scutellum not visible ; elytra gibbous, cordate, and with a deep sutural stria ; 

 anterior coxal cavities imperfectly closed behind, the prothoracic epimera not 



* Proo. Zool. Soc. Lond. 1877, p. 80. 



