MALACODERMATA. 293 
yellow at their bases; this latter character seems usual in the males, in which sex the 
legs are also longer. It will be observed that I have noticed among the characters of 
the males of this species the impressed bright line which is present in the concave 
surface of the widened joints of the antenne. This character, although I had not 
noticed it before, is common to other species, as S. varians, S. lycoides, &c.; and on 
examination I find it is faintly present in some species of Discodon, as D. nigripes and 
D. fiavicolle, and it is known to occur in some European Telephori. 
2 (p). Silis combusta. 
Silidi variant iterum persimilis, nigro-fusca, parum nitida ; capite (macula occipitali excepta), prothorace (linea 
mediana nigra), elytrorum dimidio basali, coxis et trochanteribus, femoribus interdum exparte, ferrugineis ; 
elytris subparallelis, costatis. Long. 7-74 millim. ¢ 9. 
Var. a. Elytris totis ochraceis. ; 
Var. 3. Hlytris nigro-fuscis, plaga humerali tantum rufa. 
Mas. Prothorace oblongo, antice rotundato, lateribus prope medium, sat profunde, obliquiter incisis; unguiculis 
anticis externis basi lamello dentiformi; antennis magis elongatis. 
Hab. Guatemata, Teleman in the Polochic valley (Champion). 
This species was confounded by me, before I had seen the males, with the type of Silis 
varians, and it precisely resembles that species, and the varieties probably correspond. 
It may easily be distinguished in the male sex by the oblique constriction of the thorax, 
which is like that of many species of Discodon; the tooth or rather lamella of the front 
claws is, however, like that of the first section of Sz/és in this work. The antenne of 
the male are longer, and their third to eighth joints are not expanded as they are in 
those of S. varians; they are however marked with impressed lines, as in that species, 
but not so distinctly, and the length of the intermediate joints is fully twice their width. 
With regard to the females, the antenne are more expanded and shorter than in the 
males, but their thorax is more shining than in what I take to be the females of 
S. varians; the hind angles have a slightly emarginate notch parallel to the sides. 
All the specimens from Teleman referred to under S. varians should be assigned to 
this species. I have not at present seen it from any other locality. 
Silis nigrita (p. 93). 
To the localities given, add :—GuatEmaLa, Zapote, San Isidro, Las Mercedes, Sinanja 
valley (Champion); Panama, Bugaba (Champion). 
The locality ‘‘Quiche Mountains” should be erased, the specimen from thence 
pertaining to S. sepulchralis. 
4 (a). Silis ocularis. 
Nigra, nitidula; ore, antennarum basi, prothorace pedibusque rufis. Long. 4 millim. 6. 
Mas. Oculis subglobosis, prominentibus; prothoracis margine laterali in medio hamato, juxta angulum posticum 
bilobato. 
Hab. Guatemata, Paraiso, El Reposo (Champion). 
