18/8.] MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA. 991 



18. DORYPHORA HYBRIDA, Sp. UOV. 



Ovate, black below. Head and thorax greenish black, distinctly 

 punctured. Elytra geminate punctate-striate, testaceous ; the 

 suture, the outer margin, and two transversely placed large irre- 

 gularly shaped spots, one placed before, the other behind the middle, 

 as well as the base narrowly, greenish black. 



Length 8 lines. 



Antennae rufous. Thorax not very strongly or closely punctured ; 

 the intervals also minutely punctate. Scutellum black. Elytra 

 convex, geminate-punctate-striate, each puncture surrounded by a 

 piceous spot ; the extreme base, a spot ou the shoulder, the outer 

 margin, the suture (which is widened below the base into a square- 

 shaped spot), and a transverse patch, consisting of two united spots 

 before the middle as well as a similar shaped one (formed by three 

 united spots) behind the middle, greenish black. Underside and 

 legs black. 



Hah. Peru. 



Collection Jacoby. 



The insect before me is so exactly similar in markings to the 

 Doryphora imperialis of Stal, that it may be only a variety of that 

 species. The colour, however, instead of being rufous, is greenish 

 black. The elytra, besides having the sutural stripe broader, are 

 also marked with regular rows of small piceous spots which surround 

 the puucturing everywhere ; and the underside is shining black. 



19. Doryphora militaris, sp. now 



Greenish aeneous, shining. Elytra closely punctate-striate, four 

 roundish spots placed transversely at the base, two others behind 

 the middle, with two submarginal longitudinal vittae from the middle 

 to the apex, light flavous, margined with rufous. 



Length 6 lines. 



Head closely punctured, dark brownish green, labrum fulvous ; 

 antennae gradually thickened towards the apex, the basal joints 

 shining fulvous, the rest greenish aeneous. Thorax closely and 

 deeply punctured towards the sides, much more sparingly punctate 

 on the disk, the intervals also minutely punctured. Scutellum 

 smooth. Elytra moderately convex, closely and rather regularly 

 punctate-striate, the punctures diminishing towards the apex; of a 

 greenish aeneous colour ; each elytron with two spots near the base, 

 of which one is placed on the shoulder, another near the scutellum, 

 an elongate spot behind the middle near the suture, and a longitu- 

 dinal stripe near the outer margin, from immediately behind the 

 middle to the apex, flavous, all the markings surrounded by a 

 narrow rufous border. Underside shining greenish black ; legs more 

 brownish ; mesosternal process slightly curved and pointed. 



Hab. Columbia. 



My collection. 



20. Doryphora ocellata, sp. nov. 



Ovate, very convex, testaceous. Thorax with four piceous spots. 



