16 



JOURNAL R. A. S. (CEYLON). [Vol. IIL 



11. Trichopteryx immatura. N. 



T. praecedenti similis, differt tamen colore supra aeneo-testacea, subtus 

 testacea, antennarum ast. 3-11 nigreseentibus ; differt etiam corpore ro- 

 bustiore, niagis quadrato, capite paulo majore, thorace minus convexo, 

 parum ampliore, elytris abdomen totum vel fere totum obtegent. Pedes, 

 •antennae etc. onfiiino prascedentis. Long. corp. ^ lin. 



In prsecedentis soeietate spechnina nonnulla legi. 



Of Somewhat the appearance of an immature individual of 

 'the former, but sufficiently distinct to be formed into a new 

 species. The insect is altogether of a different appearance, 

 imparted to it by the greater general plumpness of the body, 

 the larger head, the less convex, but at the same time pos- 

 sibly still ampler, thorax, the altogether more quadratic shape, 

 etc. The remark regarding the exact number of abdominal 

 segments, left uncovered by the elytra, applies to this and all 

 other species as well. The present one has generally the last 

 two segments uncovered. 



12. Trichopteryx invisibilis. N. 



T. ovata, subdepressa, subparallela, pilosa, supra obscure asnea, subtus 

 picea, pedibus, abdomine, a'ntennis oreque testaceis, Long. corp. vix 

 1/5 lin. 



Thorax am plus, elytris sesqui minor, convexus, angulis posticis humeros 

 vix superantibus. Elytra oblonge quadrata, angulis rotundatis, sub- 

 depressa, truncata, abdomen totum vel fere totum obtegentia. Coxaa pos* 

 ticas approximates. Tarsi typicis minus elongati, art. 3° praecedentibus 

 baud niulto longiore. 



Cum T. cursitante victitat ; frequenter legi. 



A very pretty and very distinguished species. Its most 

 striking peculiarity consists in the posterior coxae, which are 

 little distant from each other as those of the anterior legs, 

 and almost touch each other, and also in the shortness of the 

 tarsi. The head with the antennas, the mesosternum^ the 

 tibiae, which are incrassated in the middle, the posterior coxae, 

 with regard to the enlargement, are quite typical. However, 

 the thorax and elytra differ again from those of T. cursitans, 

 (which in every respect may be looked upon as the typical 

 representative of the family in Ceylon, and which is here re- 

 ferred to as such) the former by the shortness of the posterior 



