62 



Trichopteryx Darwinii. 



T. Daruiiiii, Matthews, Ann. Mag. Nat. Hist. 6, iii. 1889, p. 193. 



L. c. ,v, lin. = 0(>3 mm. — Oblonga, convexa, nitidula, modice tubereulata, tota 

 castanea, [lilis sat longis aureis vestita ; capite antice rotundato, minute et remote 

 tuberculato, interstitiis glabris, nitidis, oculis parvis, haud prominentibus : pronoto 

 sal brevi, capite longiori et latiori, ad basim latissimo, tuberculis parvi - remotis, 

 ordinibue transversis irregulariter dispositis, interstitiisque glabris, nitidis, ornato, 

 [ateribus sat late marginatis, margine basali fore recta, augulis acutis, vix productis ; 

 elytris sat brevibus, quadratis, capite atque pronoto vix latioribus aut longioribus, 

 apices versus latissimis, ordinibue transversis, fere rectis, modice asperatis, inter- 

 stitiis glabris, nitidis, lateribus marginatis et leviter rotundatis, apicibus fere rectis ; 

 abdomine modice exserto ; pedibus tlavis ; antennis gracillimis, pallide flavis. 



Body oblong, convex, rather Bhining, moderately tuberculate, entirely castaneous, 

 clothed with rather long golden hair. 



Head rounded in front, minutely and remotely tuberculate, with the interstices 

 smooth and shining ; eyes small, not prominent; antennae very slender, pale 

 yellow. 



Thoraa rather short, longer and broader than the head, widest at the base, orna- 

 mented with small remote tubercles irregularly arranged in transverse rows, 

 interstices smooth and shining, sides strongly margined, basal margin nearly 

 straight, with the angles acute, scarcely produced. 



Scutellum very large, triangular, deeply asperate. 



Elytra rather short, Bubquadrate, scarcely longer or broader than the head and 

 thorax, widest near the apex, moderately asperate in nearly straight transverse 

 rows, interstices smooth and shining, sides margined and slightly rounded, 

 extremities nearly straight. 



Abdomen moderately exposed. 



Legs moderate, yellow. 



Under parts castaneous, mouth and apical segments of the venter paler; meta- 

 sternum deeply reticulated. 



Differs from '/'. brevis in its broader form, shorter thorax, very slender pale yellow 

 antemue, and very different sculpture. 



Habitat, South America. Found in a fungus by Mr. Darwin near Rio Janeiro. 



Trichopteryx reticulata. 

 T. reticulata, Matthews, Ann. Mag. Nat. Hist. 6, iii. 1889, p. 193. 



L. c. {','lin. = 1-25 mm. — Brevis et lata, valde convexa, nitida, elytris strigose 

 asperatis, fusco-picea, pilis brevibus aureis vestita ; capite magno, lato, umbilicatim 

 punefcato ; oculis modicis, sat prominentibus; pronoto sat magno, capite longiori 

 et multum latiori, ad basim latissimo, punctis umbilicatis sat confertim impresso, 

 interstitiis confertim reticulars, lateribus rotundatis, leviter marginatis, margine 

 basali leviter arcuata, angulis latis, productis ; elytris brevibus, subquadratis, 

 postice paruni attenuatis, capite atque pronoto angustioribus, haud longioribus, 

 reticulatim et strigose asperatis, lateribus marginatis, apicibus latis, rotundatis; 

 abdomine sat longe exserto, ordinibus transversis umbilicatim punctato, interstitiis 

 confertim reticulatis ; pedibus atque antennis modicis, lrcte flavis. 



Immatura tota ilava. 



Body short and broad, very convex, shining ; elytra strigosely asperate, fuBCO- 

 piceous, clothed with short golden hair : immature specimens are entirely 

 yellow. 



