476 PERCY SLADEN TRUST EXPEDITION 
Twenty specimens, eleven of which are noted as having been taken from the leaf- 
bases of growing Stevensonia-palms. Silhouette: several specimens were found in the 
forest above Mare aux Cochons, one was taken from the leaf-bases of a growing palm in 
the high forest, and one from fungus at an elevation of over 2000 feet. Mahe: a number 
of specimens were taken from between leaf-bases of a growing Stevensonia-palm on summit 
of Mount Sebert, one was found in a similar situation near Morne Blanc, and one was 
found on Cascade Estate. In Praslin the species was found in the Coco-de-mer forest in 
the Vallée de Mai. 
This slender, minute Cossonid agrees with S. sz/vicola in having a narrow conical 
head, &c., but differs from that species in its smaller size and more slender build, the less 
elongate, more finely punctured prothorax, and the much narrower third tarsal jomt; the 
head, too, is shorter and the eyes smaller. The Madagascar insect in the British Museum 
doing duty for Proéces mgrifrons, Boh., superficially resembles the light-coloured examples 
of S. gracilis, but it has a 7-jointed funiculus. 
MIcROTRUPIS, n. gen. 
Rostrum cylindrical, curved, not thickened at the tip, the scrobes inferior, the 
antennee inserted at or behind the middle; antenne slender, with a 5-jointed funiculus 
and a small club; head short, small, constricted immediately behind the eyes, the latter 
small, depressed or prominent ; prothorax subquadrate or subcylindrical, about as long as 
broad, feebly constricted before the apex; elytra elongate; coxee narrowly separated ; 
metasternum elongate; legs short; tibiz feebly unguiculate; tarsi short, third jomt 
small, not much wider than second; body linear or subfusiform, depressed, shining, 
glabrous or finely pilose: species very small. 
Type, WM. longipennas. 
The three minute insects placed under Microtrupis are nearly related to some of the 
smaller species included in Stenotrupis ; but they have a small head, a cylindrical rostrum, 
a less elongate prothorax, &c. The basally constricted head, the depressed body, and the 
shorter tarsi distinguish Microtrupis from the New Zealand Hntiwm, Sharp; and the 
cylindrical rostrum, feebly constricted prothorax, &c., from Rhinanisus (type Pentarthrum 
fulvicorne, Broun), even as amended to include many minute Tropical American forms. 
M. longipennis and M. puncticeps agree well inter se; the third species, M. piligera, has 
prominent eyes, confusedly punctate-striate elytra, and a sparsely pilose body, but it can 
remain under ./icrotrupis for the present. 
104. Microtrupis longipennis, n. sp. 
Elongate, filiform, depressed, shining; varying in colour from piceous with the 
rostrum, antennee, and legs ferruginous to entirely ferruginous. Rostrum feebly curved, 
cylindrical, rather slender, much shorter than the prothorax, minutely punctate, the 
antenne. inserted at the middle; head constricted at a little behind the small non- 
prominent eyes, and closely punctured between them, the short anterior portion narrow ; 
antennze with a moderately large club. Prothorax very little longer than broad, sub- 
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