GYROPHANA. 259 
subgracilibus, articulis penultimis leviter transversis; prothorace transverso elytris multo angustiore, 
disco parum discrete quadripunctato. 
Long. 23 millim. 
4 
Hab. Guatemata, Capetillo (Champion). 
Antenne rather slender, moderately long; third joint small, much shorter than 
second; fourth small, as long as broad ; fifth rather longer than broad; tenth slightly 
broader than long; terminal joint moderately long. Thorax much narrower than the 
elytra, the discoidal punctures not large, with a few other very indefinite punctures. 
Elytra in the female nearly without punctuation, in the male with rather numerous 
granules which are distinct at the suture but become obsolete at the sides and anterior 
angles. The hind body is deeply infuscate yellow. 
In the male there are two fine, distant, longitudinal raised lines on the dorsal plate 
of the sixth segment of the hind body; the armature at the hind margin of the seventh 
plate is remarkably short, and consists of an angular prominence in the middle, just 
in front of which there is an obscure transverse tuberculation, and on each side there is 
a very short, easily overlooked, prominent angle. The female is without peculiar 
structure. 
Five individuals, very badly preserved, have been found of this species. 
11. Gyrophena discoidalis. 
Sat convexa, picea, nitida, antennarum basi pedibusque testaceis; prothorace convexo, disco quadripunctato ; 
elytrorum disco levigato, lateribus crebre obsolete punctatis ; abdomine apicem versus attenuato. 
Long. 3 millim. 
Hab. Guatemaa, Cerro Zunil 4000 feet (Champion). 
This is apparently a very distinct species, though represented only by a single decayed 
and mutilated individual. The four basal joints of the antenne are yellow; the third 
small, only half as long as the second; fourth quite small; fifth to seventh dark, each 
about as long as broad; the rest wanting. Head rather small. ‘Thorax a good deal 
narrower than the elytra, transversely convex, the disk with four large quadrately placed 
punctures. Elytra longer than the thorax, dark, with yellow shoulders ; near the suture 
with a broad smooth space, but punctate at the sides; the punctuation being most ex- 
tensive and distinct at the outer angles behind. Legs clear yellow. 
The unique individual is a male, and has a large elongate tubercle on the middle of 
the sixth dorsal plate of the hind body, some distance in front of the hind margin; 
the corresponding plate of the following segment is narrowed behind, and has on each 
side a very elongate slightly curved spine, and between these is produced so as to form 
in the middle an elongate subangular projection, which is incrassate and does not 
extend quite so far backwards as the lateral spines. 
2LL 2 
