228 SUPPLEMENT. 
7. Lygistopterus flammeus. 
Niger, nitidus prothoracis lateribus elytrisque sanguineo-rufis, his sutura basi nigricante. Long. 13 millim. 
Hab. Panama, Volcan de Chiriqui 6000 feet (Champion). 
Very similar to Z. lwtus, and scarcely differing from it except m the colour of the 
elytra, which are of a fine carmine or blood-red, without any indication of black at 
their apex; the suture is more narrowly black at the base; and two or three cost are 
tolerably distinct. This may possibly prove to be a variety of L. latus; but I have 
not seen varieties of other species; and it is at least a very curious and beautiful form. 
The specimen is, I believe, a female, and is the only one I have seen. 
Lygistopterus hematopterus (p. 8). 
Hab. Mexico, Pinos altos, Chihuahua (Buchan-Hepburn). 
Four specimens, altogether agreeing with my type; possibly this is synonymous with 
L. rubripennis, Lec. | 
The late Dr. Leconte [Trans. Amer. Ent. Soc. ix. p. 28, 1881] has referred four of 
the North-American species of this genus to Calochromus, Guérin—a type with which 
they have nothing to do. Calochromus is exclusively an Eastern genus. I have seen 
species labelled Calochromus by Dr. G. Horn; they are inseparable from Lygistopterus. 
8. Lygistopterus ——? 
Hab. Mexico (coll. Sallé); GuaTeMaua, Sinanja valley (Champion). 
Two specimens, not altogether agreeing, and which I cannot refer to any known 
species. They are black, with the sides of the thorax and base of the elytra yellow. 
Allied both to LZ. sulcicollis and L. letus. 
LUCAINA (p. 8, to follow the genus Lygistopterus). 
Lucaina, Dugés, La Naturaleza, iv. p. 180. 
The position of this curious genus is, I am convinced, close to Lygistopterus. I 
omitted it formerly, not feeling sure where to place it. ‘The head is rostrate, the 
produced part being very wide at the base. 
1. Lucaina schini. 
Lucaina schini, Dugés, La Nat. iv. p. 180, t. 6. fig. 7. 
Hab. Mexico (coll. Sallé). 
An orange-red insect; with the head, antenne, legs, and body beneath black in the - 
male ; in a female example before me the head, and femora, are yellow. The elytra are 
closely and obsoletely striate; the thorax is more quadrate than in the following new 
