164 COCCINELLID^E. 



and expanded, with round posterior angles, by the mesosternum having no fossa in the 

 middle of the front margin for the apex of the presternum, by its longish legs, &c. ; 

 but in other points, as its round and convex form, it superficially resembles Cycloneda 

 ahdominalis. While I do not feel at present able to offer systematic characters for the 

 reconstruction of the genera of this group, I think the presence or absence of the 

 mesothoracic fossa (which is much more than a mere emargination) will prove of far 

 greater value than the character drawn from the abdominal coxal fossa, " plaque abdo- 

 minale," which seems to me to be very vague. 



1. Halyzia emaciata, (Tab. IX. %g. 12, 13.) 



Pallide testacea, fere albida, prothorace lineolis duabus basalibus, elytris lunula parvula juxta medium 

 suturse punctisque duobus submarginalibus brunneis; elytris creberrime, obsoletius, subconfluenter punc- 

 tatis. Long. 3-4| millim. 



Hob. Panama, Volcan de Chiriqui 2000 to 6000 feet (Champion). 



Head in repose quite covered by the front of the thorax, which, being almost 

 translucent, permits the eyes to be seen through it from above ; front margin of the 

 thorax not emarginate; antennae moderately long, all the joints longer than broad, 

 the terminal ones fully thrice as long as wide; the tarsi and the extreme basal 

 margin and suture of the elytra very narrowly brownish. The elytral spots are very 

 indistinct; in one example, however, the sutural lunules are united and form a 

 common spot. Viewed laterally, the outline of the elytra from the base to the apex 

 is gibbous. 



About a dozen examples of this obscure and very plain-looking species were obtained 

 by Mr. Champion at various altitudes above 2000 feet on the slopes of Volcan de 

 Chiriqui. 



2. Halyzia epistictica. (Tab. IX. figg. 14, 15.) 



Oblonga, albida vel albo-testacea, prothorace maculis tribus oblongis, elytris singulis maculis nonis guttiformibus, 

 2, 3, 3, 1 dispositis, brunneo-testaceis, creberrime obsoletius punctatis. Long. 5-6 millim. 



Hab. Guatemala, San Geronimo (Champion) ; Panama, Volcan de Chiriqui 2000 to 

 3000 feet (Champion). 



This insect is more clearly of the form and structure of H. lQ-guttata than is 

 H. emaciata. The thorax is much narrower than the elytra, and is shining and 

 diaphanous at its margins; the front is not excavated and conceals the head, the 

 eyes showing through. The elytra are shining, and only seem to be punctured when 

 seen under a quarter-inch lens; in one of the two Guatemalan specimens they are 

 white, in the other and in the Chiriqui example they are of a bright but pale yellow. 

 The spots are, for the most part, elongate streaks pointed at their lower end, or at 

 both ends ; the three thoracic spots are irregularly triangular ; of the elytral spots, two 

 are basal (the internal one more elongate than the external one), and the internal or 



