332 PHYTOPHAGA. 



Hondtjkas, river Sarstoon (Blancaneaux) ; Guatemala, near the city (Salvin, Champion), 

 Aceytuno '(Salvin), Capetillo, El Tumbador (Champion) ; Panama, Bugaba (Champion). 



The description given by Clark of this species will apply to many nearly similarly 

 coloured forms from the above localities ; I look upon these as varieties only, as I 

 might otherwise constitute a new species on nearly every specimen. It is a pity that 

 Clark makes no mention of the width of the elytral black stripe, which would have 

 acted as a better guide than the colour of the breast. I find, however, on examining 

 the type contained in the British Museum, that the lateral elytral band is broad and 

 of nearly the same width as the sutural one ; in other specimens before me from 

 different parts of Mexico, this same band is only half as broad, and the thorax is with- 

 out dark markings at the sides, and the antennae are almost entirely black ; between 

 these and the typical specimens intermediate forms occur, so that I think the species is 

 a variable one, and perhaps identical with S. blanda, Melsh, or other insects described 

 under different names. 



24. Systena brunneovittata. (Tab. XX. fig. 15.) 



Obscure fulvous ; sides of the thorax, a sutural and sublateral elytral band, dark brown or piceous ; elytra 

 finely rugose-punctate ; antennae and legs fulvous. 



Length 2 lines. _,. . , , 



Head with a few very fine punctures round the inner margin of the eyes; frontal tubercles elongate, divided 

 in the middle by a distinct groove ; fourth joint of the antennae distinctly longer than the third ; thorax 

 about one half broader than long, the basilar sulcation very distinctly marked, the surface impunctate; 

 elytra finely rugose or wrinkled more or less distinctly in different specimens, dark fulvous, a narrow 

 sutural and lateral stripe dark brown or piceous ; these stripes are either abbreviated or united at the apex. 



Eab. Guatemala, near the city (Champion). 



That this species is really distinct from any other with which I am acquainted, is, 

 I think, proved by the many specimens from the above locality agreeing in every 

 respect with each other. The coloration of the insect is very different from all the 

 allied species, being a uniform obscure fulvous with darker bands ; these latter are very 

 narrow, and the lateral stripe is placed at some distance from the margin ; the darker 

 sides of the thorax are often wanting ; in others the sides of the breast and the posterior 

 femora are spotted with brown ; in all the specimens, however, before me, to the 

 number of about thirty, the antennae and legs are of the same uniform fulvous colour. 



25. Systena siibcostata. 



Below black; head rugose-punctate, its base black; thorax obscure testaceous, closely punctured; elytra 

 closely rugose-punctate, testaceous, the sutural and lateral margins black, sides with a short costa. 



Length 2 lines. , . , , , , , 



Head closely rugose-punctate, the vertex black; frontal tubercles obsolete; epistoma testaceous ; labrum 

 piceous ; antennae half the length of the body, black, the joints nearest the head testaceous at the base, 

 fourth joint longer than the third; thorax transverse, about one half broader than long, the base obso- 

 letely transversely grooved, surface distinctly rugose-punctate; scuteUum black ; elytra punctured like 

 the thorax, testaceous, a sutural and lateral stripe as well as the epipleuree black ; immediately below the 



