254 PHALACRIDA. 
Sonora (Morrison), Saltillo in Coahuila (Dr. Palmer), Guanajuato, Cordova (Sallé), 
Mexico city, Amecameca in Morelos (Hége). 
Variable in depth of colour, the anterior parts being sometimes black and then 
forming a strong contrast with the pale extremity; the sides of the thorax and front 
of the head always more or less dilute. Antenne clear yellow, with slender and 
elongate club. Thorax scarcely lobed in front of the scutellum, and there feebly mar- 
gined. Elytra without any trace of punctuation; besides the sutural stria there may 
be detected traces of other strie, but excessively fine and only to be seen in certain 
lights; the surface is extremely shining. | 
This is probably the Olidrus consimilis of the North-American list of Coleoptera, at 
least I have received it under that name from Morrison in a series of species that was 
also submitted to Dr. Horn for verification. Whether this be the case or not, it is, I 
think, distinct from the European insect bearing the name referred to. 
2. Kustilbus distinctus, sp. n. 
Ovalis, minus convexus, nitidus, rufus, antennis pedibusque testaceis ; elytris seriatim sat fortiter punctatis. 
Long. 23-3} millim. 
Hab. Guatemaa, Panzos, Paso Antonio (Champion). 
Antenne pale yellow; club elongate, but rather slender. Thorax large, with feeble 
basal lobe. Scutellum rather broad and short. Elytra with series of rather large 
punctures, which are finer and more obsolete on the apical part. 
A very distinct species of more elongate form than usual, and remarkable by the 
punctures being more conspicuous on the basal than they are on the apical part of the 
wing-cases; I am very doubtful as to its generic position. We have received only 
three examples; it appears to be more variable in size than any other of our species. 
3. Kustilbus gracilis, sp. n. 
Ovalis, minus convexus, nitidus, rufus, antennis pedibusque testaceis; elytrorum disco seriatim sat subtiliter 
punctato. 
Long. 2 millim. 
Hab. British Honpuras, R. Hondo (blancaneaux); GuaTemana, Zapote (Champion). 
Very closely allied to EH. distinctus, but smaller, with the punctures of the series on 
the elytra more minute, and with some punctuation on the interstices, this latter being 
quite absent in ZL. distinctus. We have received only three specimens of the species. 
4. Kustilbus mollis, sp.n. (Tab. VII. fig. 20.) 
Breviter ovalis, convexus, pallide testaceus, nitidus, elytris pone medium fascia obsoleta, angulata, fusca. 
Long. 1? millim. 
Hab. GuatemaLa, Las Mercedes (Champion). 
