GYROPHANA. 257 
testaceis ad angulos externos fuscis ibidemque magis punctatis; antennis articulis 5°--10™ subquadratis ; 
prothorace disco parum discrete quadripunctato. 
Long. 22 millim. | 
Hab. GuatTeMALa, Cerro Zunil 4000 to 5000 feet, Zapote (Champion). 
Antenne moderately long ; third joint short; fourth small; fifth and following each 
about as long as broad; terminal joint rather elongate. Head rather short and broad ; 
eyes moderate. Thorax strongly transverse, base much rounded; the surface with a 
few indistinct punctures, of which four on the disk (apparently the remnants of very 
obliterated series) are the most evident. Elytra longer than the thorax, with numerous 
punctures about the hinder angles, and a few irregularly placed near the suture. Hind 
body impunctate. 
Although very similar to G. sordidula and to G. apicicornis, and in respect of its 
antenne intermediate between the two, this insect has very different male characters. 
In this sex on the sixth dorsal plate of the hind body there is an elongate tuberculi- 
form elevation before the hind margin; the hind margin of the following segment 
terminates on each side in a very elongate spine, and between these spines is much 
produced, so that its middle part forms an elongate subtriangular process whose apex 
is a little rounded. | 
Only a single male individual has been found in each of the two localities. 
7. Gyrophzna apicicornis. 
Subdepressa, parce punctata, nitida, fuscescens, antennarum basi pedibusque testaceis, abdomine elytrorumque 
basi minus lete testaceis ; antennis articulis 5°-10" subquadratis, articulo ultimo elongato; prothorace 
quam elytra multo angustiore, parce obsoleteque punctato. 
Long. 22 millim. . 
Hab. Cerro Zunil 4000 to 5000 feet (Champion). 
Antenne moderately long; third joint very slender, fourth slender; longer than 
broad ; the following each about as long as broad ; terminal joint remarkably elongate, 
rather longer than the two preceding together, paler in colour towards its extremity. 
Head broad, narrowed behind the eyes. Thorax much narrower than the elytra 
and not very strongly transverse, a little narrower behind, with only a few very indefinite 
punctures. Elytra longer than the thorax, very indistinctly punctate. 
In the male there is a very minute granule just in front of the hind margin of the 
sixth dorsal plate of the hind body; the hind margin of the following segment is 
rounded, but from its middle there project two rather elongate incurved teeth, and in 
the middle the hind margin is minutely tuberculate. 
A series of sixteen specimens nas been secured of this species ; the unusual elongation 
of the terminal joint of the antenne makes it easily recognized. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, September 1883. 2LL 
