170 MALACODERMATA. 
6. Hydnocera scapularis. 
Nigra, nitida; antennis basi, ore, palpis (apice fusco), prothorace, pectore, humeris pedibusque flavis, femoribus 
apice, tibiis intermediis et posticis basi apiceque infuscatis; prothorace inaequali, disco fere levi. Long. 5 
millim. ¢ @. 
Mas. Oculis distantibus. 
Femina. Oculis antice approximatis. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Very nearly allied to H. lateralis, but differing so remarkably in colour that I think 
it must be a distinct species. Structurally the eyes are more globular, the thorax 
rather shorter and less punctulate, and the hind femora more clavate. The elytra are 
nearly as long as the body, and are coarsely punctured, especially towards the apex. 
As two specimens only have been captured, it is hardly possible to pronounce positively 
on any of these characters being of specific value. 
7. Hydnocera subvittata. 
Nigro-fusca, nitidula; ore, antennarum basi, pedibus elytrorumque vitta subsuturali sordide testaceis ; elytris 
(femine ?) abbreviatis. Long. 5 millim. ¢ 2? 
Var. capite prothoracisque lateribus testaceis. 
Hab. Guatemata,. Chiacam, San Juan, Tamahu (Champion); Panama, Volcan de 
Chiriqui, Bugaba (Champion). 
A very indefinite species, varying a good deal in size and colour, and (if I am right in 
uniting them as one) in the length of the elytra. The specimens with very much 
shortened elytra are from Bugaba, and have an obscure vitta. Specimens occur both 
from this and all the other localities with longer elytra, yet still attenuated and 
dehiscent at the apex. Those from San Juan have the vitta confined to a basal streak 
on each side of the scutellum. The hind legs have sometimes a cloud at the knees and 
a dark spot on the middle of the tibie; the tips of the hind tibie and their tarsi are 
also sometimes black. | 
This species is most nearly allied to H. longicollis, Zieg., of the other species known 
tome. ‘The thorax is more widened on the sides, and it is larger. 
8. Hydnocera chalybeata. _ 
Subcerulea, nitida; ore, antennis, palpis, femoribus basi, geniculis, tibiis anticis totis, intermediis apice, 
maculaque juxta scutellum flavis. Capite crebre, prothorace parce fortiter punctatis ; elytris basi leviter 
tumidis, omnium parce profunde punctatis, apice nitido subelevato. Long. 4—7 millim. 
Hab. Mexico (coll. Sallé), Playa Vicente (Hoge); Guatemaa, Calderas, San Gerd- 
nimo, Capetillo (Champion). 
Head wide, eyes hairy, apex of the labium and some of the joints of the antenne 
faintly infuscate above, even between the eyes, the width between which is equal to 
the length of the head in all of the seven specimens now before me. Thorax as wide at 
the tubercular processes on the sides as the length ; on the tubercles above is a double 
