338 Rev. A. Matthews on 



or in the number and relative size of the joints of the antennae, 

 I do not feel any hesitation in placing the present species in 

 the genus Bhijpoh'vs. It was found not uncommonly both in 

 Grenada and St. Vincent. 



OrtJioperus perpu.nUiis, Matth. 



Orthoperus pei'pusiUu^, Matth. Biol. Centr.-Americana, Col. ii. pt. 1, 

 p. 124 (1887). 



L. c. 0-50 mm. Ovatus, valde convexus, ater, impunctatus ; pro- 

 noto sat magno ; pedibus atque antenuis piceis. 



I described this species in the ' Biologia ' from two examples 

 taken by Mr. E. Janson in Nicaragua. It appears to abound 

 in the West-Indian Islands, where it has been found in great 

 profusion by Mr. Smith. 



Trichopterygidae. 



List of Species. 



Ptervx bvunnea. Smicrus filicomis. 



Triciioptoryx l.Tvicollis, sp. n. Nephanes meridioualis. 



■ occidentalis, sp. n. Ptilium Smitlisii, sp. n. 



depressa, sp. n. tropicum. 



Crotchii. impressum, sp. n. 



g-reuadensis, sp. u. , nif'otestaceum, sp. n. 



dubitata, sp. ii. Ptenidium concinuum, sp. n. 



Actinopteryx fucicola. Throscidium invisibile. 



Pteryx brunnea, Le Conte. 

 Pteryx hrunma, Le Conte, Smiths. Misc. Coll. i. p. 62 (1866). 



In the * Trichopterygia Illustrata,' p. 162, I described this 

 very interesting species from Dr. Le Conte's original and 

 unique specimen. Since then no other example lias ever 

 occurred until ]\Ir. Smith was fortunate enough to capture the 

 subject of this note in the island of Grenada. 



It may be known from the rest of the genus by its deep and 

 almost variolose punctation. 



Triclwpteryx IcevicolUs^ sp. n. 



L. c. OSO mm. Subhcmisph.Trica, postice att^nuata; pronoto 

 maguo, nigro, nitidi.^^simo, angnlis posterioribus valdc productis, 

 rufoscoiitibus ; clytris rufoscentibus, brcvibus, multum atteuuatis : 

 pedibus atque antcunis flavis. 



A distinct and well-marked species. It may be kiiown 



