Monograph of the Genus Leptocera. 469 



The suture is bordered by a white line, which occupies the 

 extremity of the elytra ; towards the base are three other 

 stripes ; the longest, which passes down the middle, is near- 

 est the suture, the second is very faint, and situated almost in 

 the angle, the third is below the angle, and is interrupted in 

 the midst of its course, upon which it returns upwards, and 

 terminates near the first. A large spot, or transverse stripe, 

 which seems formed of two oval hollows, succeeds. They nei- 

 ther join the sutural stripe nor the elongated border. Final- 

 ly, a very elongated spot occupies the extremity of the elytra, 

 and, in connection with the whole of the preceding, produces 

 a very pleasing effect. 



The corslet, the lower part of which is of a darker colour 

 than the elytra, is ornamented with four longitudinal stripes 

 of the same colour as those on the elytra, and producing an 

 agreeable alternation of black and white. The front, which 

 is white, displays a black triangular spot on the upper part. 

 This white colour is continued over the face and mandibles, 

 and even over the eyes at the base of the antennae ; the lat- 

 ter are black ; the eyes are of a reddish brown ; the feet brown 

 with whitish stains, particularly on the claws. 



The body is short and pyramidical ; the elytra terminated 

 by two points, and presenting a very distinct angle on each 

 side of the base. The corslet is very finely wrinkled trans- 

 versely, while the elytra are punctured ; these punctures and 

 wrinkles are visible without the aid of a magnifier. The 

 corslet is short, and tumid at the sides ; it is larger than the 

 head, and much narrower than the body. The legs are thick- 

 er towards the thighs, and of proportionate length. The an- 

 tennae are at least three times the length of the insect. They 

 consist of ten joints, of which the first is very short, and the 

 last very long, diminishing almost to the size of a horse-hair. 



This species is very common in Mauritius, but we do not 

 find it in the Isle of Bourbon. About fifteen years ago, I, 

 for the first time, discovered it in considerable numbers in 

 the Plaines Wilhems; since that time I have procured a great 

 number at Flacq, in the months of January, February, May, 

 and November. 



In its larva state it is said to live in the woods of the olive, 

 {Eleodendron orientate). It is very easily captured, and fre- 

 quently suffers itself to be caught in houses. 



I have sent a great number of specimens of this species to 

 different collections in France and England; and two of the 

 most celebrated Parisian naturalists in particular have assured 

 me that it is the Leptocera. scripta of Dejean. 



Vol. II.— No. 21. n. s. xx 



