COLEOPTERA. 197 



suture nearly one-half longer than the pronotum ; surface very convex, 

 rather strongly impressed on the suture toward the base, each elytron 

 obliquely and somewhat feebly impressed in front of the middle ; punctures 

 small, round, deeply impressed, distant by more than their own widths, 

 nearly evenly distributed. Abdominal segments decreasing uniformly and 

 rather rapidly in width, first slightly narrower than the contiguous elytra, 

 nearly cylindrical, each segment rather strongly constricted at base ; surface 

 very coarsely, rather closely and evenly punotulate ; punctures at base as 

 large as those of the elytra ; border obsolete ; transverse carinae not cusped. 

 Legs short and slender, femora and tibiae black, tarsi paler, piceous ; first 

 three joints of the posterior uniformly and very rapidly decreasing in length ; 

 fourth joints strongly bilobed, lobes narrow and very long. 



Male. — Unknown. 



Female. — Sixth ventral segment very obtusely and somewhat angularly 

 rounded behind. 



Length 2.9 mm. 



Oak Grove, California, 2. 



The above-described type has been lost; the second specimen is 

 believed to represent the species, although it is more slender than the 

 original type. The species cannot, however, be very l'eadily mis- 

 taken for any other of that region. 



Unrecognized Species. 



The following is the only species which I have not succeeded in 

 fully identifying. The original description of Boheman is transcribed 

 without alteration, except in the portions between brackets: — 



[Areus] clialytoeus Boh. 

 Res. Engen. 1S58, p. 33. 



Caeruleus, nitidus, glaber ; antennis palpis pedibusque dilute flavis, 

 illis antrorsum leviter infuscatis; fronte plana, punctata, medio cari- 

 nata ; prothorace confertim punctato, postice leviter carinato ; elytris 

 prothorace nonnihil brevioribus, fortiter, crebre punctatis ; abdomine 

 immarginato, coracino, parce subtiliterque punctulato — Long. 4£, 

 lat. ^ millim. 



Patria : California (St: Francisco). 



Caput prothorace sesquilatius, obscure caeruleum, nitidum, crebre, sat 

 distincte punctatum, antice subtiliter albido-pubescens ; fronte plana, medio 

 linea longitudinali, laevi, modice elevata. Palpi dilute flavescentes. An- 

 tennae modice elongatae, tenues, dilute fiavae, extrorsum leviter infuscatae, 

 articulo tertio quarto nonnihil longiore. Prothorax elytris fere duplo angus- 

 tior, oblongus, latitudine duplo longior, apice rotundatus, hasi truncatus, 



