1865.] 139 



Closely resembles L. trifasciata, but is smaller and has more silvery 

 bands on the abdomen. 



Genus TACHYTES. Panz. 

 Tachytes cubensis, n. sp. 



Blackish; face, cheeks, collar, margins of mesothorax, pleura, postscutellum, 

 sides of metathorax and apical margins of first three abdominal segments, 

 bright golden; tegulse and legs fulvous; wings yellowish-hyaline. 



Female. — Head black; vertex clothed with cinereous pubescence, 

 the face, clypeus and cheeks with dense golden pubescence ; palpi and 

 mandibles fulvous, the latter with their apical half black, and their 

 base golden ; eyes large, approximate on the vertex ; antennae black, 

 the basal joint clothed with yellowish pubescence. Thorax opaque 

 brown-black ; a line over the collar, broad lateral and posterior margins 

 of the mesothorax, broader before the tegulae. and sides of the pleura 

 of dense golden pubescence, the front of the mesothorax is also more 

 or less golden; scutellum blackish, the extreme sides golden, as well as 

 the whole of the postscutellum ; metathorax brown-black, opaque, 

 clothed with a rather long whitish pubescence, and on each side a large 

 longitudinal mark of dense, bright golden pubescence, just above the 

 truncation a small central excavation, upper part of the truncation with 

 a deep central impressed line ; tegulae fulvous. Wings ample, yel- 

 lowish-hyaline, slightly dusky at extreme tips; nervures honey-yellow. 

 Legs stout, fulvous, with a dense bright golden pile, more conspicuous 

 on the tibire and tarsi, which are spinose ; coxae and trochanters brown- 

 black, as well as the tarsal claws. Abdomen brown-black, with a fine 

 changeable golden-sericeous pile ; the three basal segments with a broad 

 golden apical band, those on the second and third segments strongly 

 emarginate before on the disk ; basal segment clothed with whitish 

 pubescence ; apical segment narrow, flattened, carinated on each side, 

 obtuse at tip, golden at base and ferruginous at tip. Length 8} lines ; 

 expanse of wings 13J lines. 



Male. — Resembles the female, but is much smaller, more densely 

 pubescent, darker in color, the wings clearer, the abdomen is blacker, 

 making the three bands very distinct and brilliant, and the apical seg- 

 ment is bright silvery, truncate at tip and armed with a small obtuse 

 tooth on each side of the tip. Length 5z lines; expanse of wings 10 

 lines. 



Collection. — Dr. J. Gundlach. Two specimens. 



This may prove to be the Tachytes 3-cincta of Lahlbom, from St. 

 Thomas, but the meagre description given of that species makes it un- 

 certain, and I therefore describe it under another name. It cannot be 



