MYRMEDONIA. 207 
lateral and basal margins. Elytra very densely and roughly punctured, so that the 
interstices are quite small. 
This insect is allied to a group of Amazonian species, and should be placed next 
M. scabripennis, Sharp. Only two individuals, both of the male sex, have been found. 
17. Myrmedonia breviceps. 
Testaceo-brunnea, antennarum basi pedibusque testaceis; antennis crassis, laxe articulatis, longius setulosis, 
articulis penultimis fortiter transversis ; oculis majoribus ; prothorace transverso, basin versus angustato, 
crebre fortiterque punctato ; elytris prothoracis longitudine, crebrius fortiter punctatis; abdomine levi- 
gato, nitidulo. 
Long. 5 millim. 
Hab. Panama, David, Chiriqui (Champion). 
Of rather broad form. Antenne very stout, basal joint large, thick and elongate, 
third considerably longer than second, the penultimate four strongly transverse, 
terminal joint broad, longer than the two preceding together. Head short and broad, 
narrower than the thorax; eyes occupying all the sides, the surface shining, coarsely 
and not closely punctate, the punctures only very shghtly impressed. Thorax rather 
strongly transverse, a good deal narrowed behind, shining, coarsely and deeply punc- 
tate, the punctures extending not quite to the margins, the disk rather depressed. 
Elytra broad and short, more dilute in colour than the head and thorax, the outer 
apical angle slightly darker, deeply and closely, rather coarsely punctate. Hind body 
very shining above, beneath sparingly punctate. Legs pale yellow. 
Described from a single individual, which is probably a female. The species approxi- 
mates in many respects to the European subgenus Zyras, from which it differs at the 
same time by the short head and the much greater proportional development of the 
eyes; the middle coxe are very distant; and the apex of the intercoxal process of the 
mesosternum is very broad and quite straightly truncate; the metasternal process is 
much produced forwards, but leaves a well-marked short and broad intercoxal isthmus ; 
and the margin of the process is in front very distant from the coxe. 
18. Myrmedonia longipes. (Tab. V. fig. 20.) 
_Testacea, elytris ad apicem fuscis, abdomine castaneo-testaceo ; antennis gracilibus, in medio obscurioribus; 
oculis magnis; prothorace transverso, quam elytra angustiore, in medio scabroso-punctato; elytris 
nitidulis, sparsim punctatis ; abdomine nitidulo, versus apicem attenuato et acuminato. 
Long. 4? millim. 
Hab. Panama, Bugaba 800 to 1500 feet (Champion). 
Antenne slender and elongate, laxly articulated and conspicuously setose, the slender 
third joint slightly longer than the second, tenth about as long as broad, each. joint 
from the fourth to the ninth much more slender at the base than at the extremity ; 
eleventh joint scarcely so long as the two preceding together. Head broad and short, 
