248 STAPHYLINID. 
2. Diestota crassa. 
Picea, sat nitida; antennarum basi, pedibus elytrisque testaceis, his transversim in medio infuscatis ; antennis 
brevibus, crassis, articulis 4°-10™ fortiter transversis ; elytris brevibus sed quam prothorax longioribus, 
fortiter punctatis ; abdomine parce punctato, subtus convexiusculo. 
Long. 2 millim. , 
Hab. Guatemata, Paraiso 300 feet (Champion). 
Antenne short and very stout; the three basal joints yellow, the rest darker; third 
joint rather shorter than second ; fourth not quite so broad as the following ones, but 
strongly transverse ; fifth to tenth similar to one another, each very strongly trans- 
verse; terminal joint large, very obtuse. Head very short and broad, with large eyes, 
imperceptibly punctate. Thorax very broad and short, more than twice as broad as 
long, very feebly punctate, with a basal transverse impression. Elytra broad and short, 
yellow, with a large vague cloud of darker colour across the middle, rather coarsely 
punctate. Hind body sparingly punctate, the apical segments still more sparingly than 
the basal ones. 
Of this distinct species five individuals have been found. The male has on the 
sixth dorsal plate two elongate, slightly curved, raised lines, and between them a small 
tubercle; the following segment is longitudinally bituberculated in the middle, and 
at each outside has a raised straight line, which is continued backwards to form a 
small projecting spine. 
3. Diestota laticornis. 
Brevis, subparallela, subtilissime punctata et pubescens, nigra; antennarum basi pedibusque testaceis ; elytris 
fuscis ad humeros testaceo-maculatis, vel fusco-testaceis; prothorace fortiter transverso, basi in medio 
transversim impressa, angulis posterioribus distinctis. 
Long. 2 millim. 
Hab. Mexico, Teapa and Cordova (Sallé); GuateMaLa, Cahabon (Champion) ; 
Nicaracua, Chontales (Janson); Panama, Bugaba 800 to 1500 feet (Champion). 
Antenne short; the two or three basal joints obscure yellow; third joint rather 
short, shorter than the second ; fourth small, not so long as broad; fifth considerably 
broader than fourth; fifth to tenth differing very little from one another, strongly 
transverse ; terminal joint large, obtuse, quite as long as the two preceding together. 
Head broad and short, scarcely visibly punctulate. Thorax strongly transverse, about 
twice as broad as long, straight at the sides, the base rather rounded, so that the hind 
angles, though well marked, are obtuse; the surface is very finely punctate; and in 
front of the scutellum there is an obscure transverse depression. Elytra short, but 
distinctly longer than the thorax, finely punctulate. Hind body parallel, the basal 
segments not closely punctate, and the penultimate still more sparingly. 
The male has on the hind margin of the seventh dorsal plate six closely placed linear 
teeth with blunt terminations, and on each side and more remote a rather longer, slender, 
acuminate, slightly curved spine. 
