76 Mr. D. Sharp's Contributions to the 



In the male the 6th dorsal segment is opaque and bears 

 a few obsolete tubercles; the dorsal plate of the 7th seg- 

 ment is transversely depressed along the middle, and 

 beyond the depression is produced as a large triangular 

 plate, the apex of which is divided by a narrow slit; on 

 each side is a long pointed spine, directed inwards, and 

 attaining a similar length to that of the central plate. 



A single male individual of this species was found in 

 fungus by Dr. Trail, at Garrao, on the river Jurua, on 

 the 11th of November, 1874. 



7. Gt/7'ophcBnasparsa,n. sp. Convexa, nitidida, picea, 

 antennarum basi, pedibusque testaceis ; abdomine basi 

 dilutiore; prothorace valde transverso, disco quadri- 

 punctato; elytris parce tuberculatis, versus angulos ex- 

 ternos lajvibus. Long. corp. xix 1 lin. 



Antennae short and stout, the four basal joints yellow, 

 the others darker; 3rd joint very small, much smaller 

 than 2nd; 4th very minute; 5 — 10 very similar to one 

 another, rather strongly transverse; 1 1th short and obtuse. 

 Head a good deal smaller than the thorax, pitchy, shining, 

 scarcely visibly punctured. Thorax strongly transverse, 

 much rounded at the base, which is a good deal emargi- 

 nate in the middle in the fi-ont of the scutellum ; the sides 

 also a good deal rounded; it is of a shining, pitchy colour, 

 with fovu- fine punctures on the disc. Elytra a good deal 

 longer than the thorax, rather paler in colour, very 

 shining, with a few rather coarse elevated tubercles, which 

 howe\er do not extend to the outer angles. Hind body 

 im])unctate, i)itchy yellow, with the penidtimatc segments 

 pitchy. Legs yelloAv. 



In the male the hind margin of the 7th segment of the 

 hind body forms in the middle a rather large triangular 

 projection, and at each outer angle has a curved, pointed 

 spine, which reaches a little further backwards than the 

 middle projection. 



(jari-ao; a single male found in fungus on the 11th of 

 November, 1874, by Dr. Trail. 



8. GyroplicBna guassa, n. sp. Picea, nitidula, antennis 

 pcdilnisque testaceis, illis basi quam a])ice dilutioribus, 

 abdomine rufo-obscuro, ante apicem piceo; ])rothorace 

 transverso, fere impiuictato; elytris parce tuberculatis. 

 Long. corp. \'^ lin. 



