102 MALACODERMATA. 
The flabellate pectination of this insect is longer than in T. pectinicornis; and it is 
readily recognized by the yellow-red median vitta of the head and thorax. The former 
is shaped as in 7’. pectinicornis. The antenne and palpi are dark, the terminal joint of 
the maxillary pair are ovate, a little swelled, and acuminate at the tip. The second 
joint of the antenne is triangular, as wide as long. The thorax has raised, slightly 
thickened margins, and a median channel as in 7. pectinicornis. The elytra are entirely 
pitchy black, longitudinally corrugate, and the whole of the body with the wings and 
legs dull opaque black. The scutellum in the two male examples from Chiriqui is red ; 
in a single female from the Sinanja valley it does not appear so. These are the only 
examples that have yet been sent. 
MALTHINUS. 
Malthinus, Latreille, Genera Crust. et Ins. i. p. 261 (1806). 
About fifty species have been described from the Palearctic Region. Mr. G. Lewis 
has met with the genus in Japan; and Leconte records two species from the United 
States. 
1. Malthinus major. 
Nigro-fuscus ; ore, antennarum apice, prothorace (disco antice excepto), pedibus (femoribus summo apice 
tibiisque fuscis), pectore, abdominisque lateribus et basi testaceis, Long. 7 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Head wider across the eyes than long, much contracted behind, black, with the front 
at the insertion of the antenne yellow. Antenne three fourths of the body’s length; 
filiform, fuscous, the basal three or four joints pale beneath, and the apical three joints 
pale. Palpi pale, with darker apex. Prothorax even and impunctate, a little narrowed 
in front, with a dark patch on the front half of the disk, not, however, reaching the 
front margin. Elytra opaque, fuscous, as long as the head and thorax, closely and sub- 
rugosely punctured. Legs pale, a dark patch near the apex of the femora, the tibiz 
and tips of the tarsi dark. Dorsal surface of the abdomen and its apex pitchy black. 
This is the largest species of Malthinus I have seen; and it appears to be larger than 
any species described. Three specimens recently sent from Chiriqui are all that have 
been seen by me; one of these has all the pale portions darker than the other two, 
owing, as I think, to discoloration. 
2. Malthinus championi. 
Nigro-fuscus ; antennarum apice, prothorace, pedibus basi, pectore abdomineque testaceis, hoc dorso nigro. 
Long. 6-7 millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Very little inferior in length to the preceding species, but narrower and with the 
head especially smaller and entirely black; the antenne are not quite so long, and have 
