LONGICORNIA. 255 
PSYRASSA (p. 28). 
Psyrassa basicornis (p. 28). 
To the locality given, add:—Mexico, Almolonga (Hége). 
Psyrassa castanea (p. 28). (Tab. XVII. fig. 8.) 
We now add a figure of this species. 
3. Psyrassa sallei. (Tab. XVIII. fig. 11.) 
Nigra, nitida, capite thoraceque rufis, elytris chalybeis. 
Long. 44 lin. 
Hab. Mexico (Salié). 
One example, differing from P. basicornis only in colour, the antennal scape and 
femora being black, or bluish black, instead of red as in P. basicornis. In size the 
single specimen is much smaller, P. basicornis being quite 6 lines long. The genus is 
well distinguished by its long, cylindrical, nearly smooth thorax, and the great length 
of the spine on the third joint of the antenne. 
4, Psyrassa tympanophora., (Tab. XVIII. fig. 12.) 
P. castanee similis, sed angustior precipue thorace angustiori cylindrico, grosse sparsim punctato. Angusta, 
linearis, fulvo-castanea, nitida, breviter fulvo-setosa, antennis pedibusque melleo-flavis; capite ante 
oculos prolongato, angusto, palpis maxillaribus ¢ art. apicali dilatissimo apice in discum ovale expanso 
(Q normali, anguste triangulari); fronte et vertice grosse confluenter punctatis, plaga ante epistomatem 
magna triangulari polita; elytris discrete sicut in P. castanea punctatis, apice sinuato-truncatis, angulo 
suturali breviter, exteriori elongato, spinoso. Antenne articulis 3°-5™ teretibus angustis nec carinatis. 
Long. 6lin. 3 2. 
Hab. Mexico, Almolonga (fHége). 
Notwithstanding the extraordinary bell- or cymbal-shaped development of the apical 
joints of the male maxillary palpi, the narrow and rather prolonged muzzle, and the 
uncarinated antennal joints, this curious species bears so close a resemblance to 
P. castanea that it cannot well be removed from the genus Psyrassa. 
IRONEUS (p. 29). 
3. Ironeus mutatus. (Tab. XVIII. fig. 10.) 
I. duplici (Bates) differt tantum coloribus, capite thoraceque rufis, femoribus nigris. Gracilior, elytris dense 
erecte pubescentibus setisque longioribus intermixtis; niger, capite thoraceque rufis sparsissime punctatis. 
Long. 53 lin. 
Hab. Mexico, Almolonga (Hége). 
One example. 
