FRED. C. BOWDITCH. 327 



the apex and three vittae (one humeral) between the last and the 

 humerus, ending in an ill-defined oblique streak which runs from 

 below the humerus to the middle, the space between the oblique streak 

 and the apex is occupied by broken fragments of aeneous coloring 

 without order, the two or three outside vittse, above mentioned, are 

 connected with a very narrow basal aeneous margin, and there is also 

 a lateral vitta from near the humerus to within one-quarter of the 

 apex, body below greenish bronze, feet yellow with viridi-aeneous spot 

 on the thighs. Length 8-9 mm. 



One example, Mexico, also one among the unnamed 

 Jacoby material marked " Coll. R. Stuhimann 16 XI 1895 

 (viri-di-collis separate label)." Separate label in Jacoby's 

 writing. 



The second specimen varies from the type in having the 

 humeral vitta broken and the oblique streak indicated by 

 spots, and the broken fragments behind are still more divided. 

 The sides of the thorax are rounded and the anterior angles 

 pointed, the elytral puctures are moderately coarse, obsolete 

 at the apex and almost entirely confined to the aeneous 

 markings, the third interspace is wider than the rest. The 

 junction of the oblique streak with the subsutural vitta forms 

 a noticeable spot, the vittse in front of the oblique streak 

 are limited by punctures like a Calligrapha, but the crossing 

 of the streak seems to break all order. Resembles some 

 forms of dilecta Stal, but the punctuation of the elytra in 

 dilecta is much more general and diffused, and none of my 

 specimens of dilecta have anything approaching the broken 

 rear markings of similis. 



Among the unnamed Jacoby material was a specimen 

 marked by him " n. i. m." (not in museum) which seem to be 

 a curious aberration of Leptinotarsa Stali Jac. it is precisely 

 like typical Stali except that the large angulated spot at the 

 rear side and the small jog off the sutural vitta near the 

 apex, are both indicated only by dots at the anterior angles — 

 without typical forms for comparison it would pass as an 

 undescribed form. 



Mr. Wickham in one of his trips has taken Leptinotarsa 

 dahlbomi Stal at the Rio Balsas and Apipilulco in Guerrero 

 and also at Cuernavaca ; new localities to me for this species. 



TRANS. AM. ENT. SOC. , XXXVII. 



