LEPTINOTAESA. 237 



27. Leptinotarsa rubiginosa. 



Doryphora rubiginosa, Rogers, Proc. Ac. Phil. viii. 1856, p. 30 1 ; Suffrian, Stett. ent. Zeit. 1858, 



p. 245 2 . 

 Chrysomela rubiginosa, Stal, Monogr. Chrys. Amer. p. 168 3 . 



Hab. Noeth Ameeica 1 . — Mexico 3 , Mazatlan 2 , Alvarez Mountains (Br. Palmer), 

 Ciudad, Milpas (Forrer), Guanajuato (Buges, coll. Salle), Puebla (Salle). 



Of a uniform yellowish brown, with the exception of the antennas, palpi, scutellum, 

 and legs, which are black. The thorax is extremely finely punctured on the disk ; and 

 the punctured subgeminate striae of the elytra are also very finely impressed. Stal 

 describes the thorax as being marked sometimes with a black discoidal spot. Such 

 specimens I have never seen ; nor does Rogers or Suffrian refer to this character. The 

 latter author thinks that the colour of this insect ought to be called a " brick-red," with 

 which I cannot agree, the description, " yellowish brown," given by Rogers expressing 

 perfectly the proper colour of the species. A specimen, formerly in the collection of 

 Sturm, is labelled by him B. nigripes. I have not seen more than about a dozen 

 specimens, all of them having been obtained in Mexico. 



28. Leptinotarsa stali. (Tab. XV. fig. l.) 



Ovate, convex, greenish black; labrum and the basal joints of the antennae testaceous; thorax minutely 

 punctured ; elytra closely subgeminately punctate-striate, yellow, the suture, an elongate large spot from 

 the middle of the base, a transverse dentate band below the middle, a narrow line attached to it posteriorly, 

 a sutural spot below the middle, and another small spot anteriorly, near the lateral margin, dark cupreous 

 or greenish black. 



Length 4 lines. 



Head distinctly and rather closely punctured ; palpi obscure piceous ; antennae with the last five joints trans- 

 verse, piceous, the first three joints and the apex of the following two testaceous. Thorax greatly deflexed 

 at the sides, the posterior margin distinctly produced towards the middle, the sides nearly straight, and 

 only slightly rounded near the apex, surface very finely and rather closely punctured, a little more 

 distantly on the disk, of a metallic dark greenish colour ; scutellum triangular, impunctate, greenish. 

 Elytra much more strongly punctured than the thorax, the punctuation arranged in double rows near the 

 suture, more irregularly towards the sides ; the colour is a bright yellow, a sutural band from the base 

 to the apex, slightly narrowed towards the latter, and connected with a broad mark, which extends from 

 the base to nearly the middle of the elytra, at which place it is greatly widened, greenish or dark cupreous ; 

 another transverse band of the same colour extends across the suture below the middle ; this band is much 

 narrowed towards the suture, and its margins are dentate or irregular, while a narrow dark line attached 

 to its outer margin extends nearly to the apex, and runs parallel with the lateral margin ; the band just 

 mentioned commences with a small hook-like process, which is directed towards the lateral margin ; a 

 very small spot is further placed near the latter below the shoulder ; and another short transverse spot 

 extends across the suture below the middle. Underside greenish black ; tarsi dark fulvous, stained with 

 piceous ; elytral epipleurse testaceous at their anterior half, the rest black. 



Hab. Mexico, Puebla, Izucar (Salle). 



Of this distinct and well marked species, two specimens are contained in the collection 

 of M. Salle. 



