DIABEOTICA. 



519 



fulvous-coloured stripe on the elytra between the second and third rows of spots, and the 

 apices also fulvous. These marks are spoken of by Mr. Baly as being sometimes 

 absent, and as I am unable to find any distinct characters of importance in the Panama 

 specimens, I refer them to the present species ; there are, however, varieties before me 

 in which the spots of the elytra are either transversely or longitudinally connected. 

 Mr. Baly 1 gives Mexico as a locality for D. spilota ; I have never seen a specimen from 

 that country. Other closely-allied forms are found both in North and in South America. 

 D. spilota may be known principally by the non-foveolate thorax, in connection with 

 the fulvous legs and antennae ; some specimens, however, before me show that this 

 colour is not always constant ; and others have two small fovea? visible on the thorax 

 D. centralis, Jac, is extremely closely allied to this insect, but differs in the deeply 

 foveolate thorax, and in having an extra spot at the apices of the elytra. 

 A Bugaba specimen is figured. 



39. Diabrotica duplicata. (Tab. xxx. fig. 7.) 



Head and breast black, the antennse, thorax, and legs fulvous; thorax distinctly trifoveolate, impunctate ; 



elytra flavous, each with five black spots (1.2. 2), the apices obscure fulvous. 

 Length 2|-3 lines. 



Hob. Panama, Bugaba, Volcan de Chiriqui, David {Champion). 



D. duplicata differs sufficiently from D. spilota to justify its separation therefrom. 

 The thorax is much more broadly and distinctly foveolate, sometimes with a small 

 additional fovea at the base; the subquadrate spot surrounding the scutellum in 

 D. spilota is here wanting, the elytral suture being at this part extremely narrowly 

 margined with black on its inner edge ; the spot at the shoulders is almost always 

 indented on its inner side ; the other elytral spots are nearly round (not transverse or 

 elongate), and black instead of blue ; and, lastly, the apices of the elytra are stained 

 with pale yellowish-fulvous. The general shape also of the insect is more elongate 



and much less convex. 



There are more than a dozen specimens before me which agree entirely in the 

 above particulars. The elytral spots are placed as in D. spilota. 



h. Elytra testaceous, with black or blue short basal stripes and small 



posterior spots. 



40. Diabrotica apicicornis. (Tab. xxx. fig. l.) 



Pale fulvous, the terminal and the intermediate joints of the antennse, the breast, tibiae, and tarsi black 

 thorax bifoveolate; elytra testaceous, very closely punctured, a short stripe at the shoulders and another 

 at the suture, and two spots below the middle, black. 



Var. The elytra with only one posterior spot ; this spot sometimes obsolete. 



Length 3-3| lines. 



Head fulvous, with a smaU fovea between the antennse ; the latter two thirds the length of the body, the third 

 joint one half longer than the second, the fourth to the eighth joints and the apex of the terminal one 



