CYRTOTHORAX. 341 
uneven than it is in any of the other species known to me. The hind body is slender, 
and each of the basal segments is punctate at the sides, and the punctures of each side 
nearly meet in the middle on the base of each of these segments; the terminal and 
penultimate segments are sparingly punctate. 
The only example found is in a decayed condition, and the colour of the legs may 
not, consequently, be very natural. 
3. Cyrtothorax cyanescens, (Tab. VIII. fig. 10.) 
Nigerrimus ; capite, thorace elytrisque cyaneis ; antennarum basi tarsisque piceis, femoribus basibus testaceis, 
antennarum articulo ultimo ferrugineo ; elytris inequalibus fortiter punctatis. 
Long. 10-12 millim. 
Hab. GuaTEMALA, Capetillo, Cerro Zunil 4000 to 5000 feet (Champion). 
This is extremely similar to the larger specimens of C. buphthalmus, except in the 
beautiful blue colour of the anterior parts, and the more limited extension of the 
yellow colour on the legs. 
Of the ten specimens before me nine were found at Capetillo. 
4, Cyrtothorax fulgidus. 
Rufus; capite superne viridi, elytris viridi-ceruleis, abdomine ante apicem nigro; antennis in medio, capitis 
facie inferiore pectorisque lateribus nigricantibus ; elytris fortiter punctatis, subineequalibus. 
Long. 11 millim. 
Hab. Nicaragua, Chontales (Janson). 
Antenne with joints 3-5 red at the base, dark at the extremity, the following joints 
nearly black, the terminal joint pale. Thorax broader than the elytra, with a few 
coarse punctures on each side. Hind body very little punctate, there being only a few 
punctures at the side of each of segments 2—5, and very few punctures on the sixth 
segment; the colour of this segment is black, like that preceding it, but its hind 
margin, as well as the terminal segment, is red. 
Only one example (a female) is known of this vividly coloured species. 
5. Cyrtothorax salvini. 
Fulvus ; capite thoraceque superne et scutello viridescentibus ; abdomine ante apicem nigricante, apice fulvo- 
testaceo; antennis rufescentibus, articulo ultimo pedibusque testaceis; elytris fortiter punctatis, sub- 
ineequalibus. 
Long. 11 millim. 
Hab. Guatemata, Zapote (Champion). 
This insect is very similar in other respects, though so dissimilar in the colour of the 
thorax and elytra, to C. fulgidus; it has, however, the punctuation of the front of the 
head rather coarser and closer. 
Two individuals, male and female, have been found of this species; the sexual 
