STSTBOPIIA.— THAUMATOSOMA. 467 



shaped projection which is narrowed at base and obliquely concave 

 at apex. Jet-black and shinino-, the apical three joints of the 

 ilagellura of the antennae light testaceous ; the whole head, thorax, 

 and abdomen covered with a thin soft hoary pubescence ; wings 

 hyaline, lightly fuscescent. 



Hah. Burma ; Tenasserim. c? • Len.(itli 10-12 ; exp. 21-23 mm. 

 $ unknown. 



Genus THAUMATOSOMA. 



Thaumatosoma, Smith, Trans. Ent. Soc. ser. 3, vol. ii, 1805, p. 394. 



Type, T. duboulaii, Smith. 

 Range. Australia ; Burma. 



S . Head orbicular, about as wide as the thorax ; ocelli in a 

 broad triangle, nearly in a curve, on the vertex ; labial palpi 4- 

 jointed, basal two joints subequal, elongate, the apical two minute, 

 placed at an angle near the apex of the 2nd joint ; maxillary palpi 



2-jointed, minute, basal joint stout, 



apical thinner, poiuted at apex; 



the apical lobe of the maxilla twice 



the length of the basal lobe ; 



antennae with the scape short, thick, 



the flagellum with the apical joint 



dilated, flat and thin, the rest of the 



joints either all slender, filiform and 



elongate, or the basal seven normal 



Yi^A5B.-Tha7miatosoma and the subapical _ f our suddenly 



burmanictim, J. f. attenuated and filiform. Thorax 



ovate ; legs moderately stout : the 



fore wing with the radial cell narrow, rounded at base and apex ; 



two cubital cells, the 2nd receiving both recurrent nervures, the 



1st near the base, the 2nd near the apex. Abdomen cylindrical, the 



apical segments curved downwards, the 7th segment medially 



strongly carinate, the carina ending in a blunt spine, the sides 



of the segment also produced and forming incurving blunt teeth 



on each side ; basal segment beneath produced and having a strong 



blunt tooth on each side. 



In the paper in the Trans. Ent. Soc. containing a diagnosis of 

 the genus Tlummatosoma, Smith also described an insect from 

 South America under the name Eacera mirabiUs, the antennae of 

 which still more closely resemble those of the insect described 

 below. No specimen of this so-called Eucera is in the British 

 Museum, but I have little doubt that it also agrees best, as does the 

 Burman insect, with the characters, especially of the mouth-parts, 

 of the genus Thaumatosoma. 



823. Thaumatosoma 'burmaniciim, n. sp. 



S . Head, thorax, and abdomen finely and closely punctured and 

 more or less pubescent, the head in front densely so ; median 

 segment short, truncate posteriorly, the sides rounded. Black; the 



2h2 



