30 Descriptions and Records of Bees 



Tetrapedia mayarum^ sp. n. 



$ . — Length nearly 10 ram. 



Black, with the labrum (except a median basal reddish 

 spot), patch at base of mandibles, and broad lower corners of 

 clypeus pellucid whitish ; hind tarsi clear ferruginous, with 

 their hair entirely orange-ferruginous ; an obscure round red 

 spot on inner side of hind tibiae near apex ; hair of head and 

 thorax scanty, black above, silvery-white on cheeks, sides of 

 face, and lower parts of pleura and metathorax ; head 

 shining ; clypeus with strong punctures, dense in middle of 

 sides ; front with extremely fine punctures and an oblique 

 groove on each side ; sides of occiput with a sharp elevated 

 margin ; antennse dark, the scape with a light yellowish-red 

 spot at base, flagellum red beneath ; mesothorax and scu- 

 tellum dull, with a granular appearance; base of metathorax 

 punctured ; tubercles with short dark brown hair ; tegulse 

 shining black. Wings dark fuliginous, a little paler apically, 

 nervures fuscous, stigma amber-colour ; second s.m. con- 

 siderably narrowed above, receiving first r. n. about halfway 

 between middle and apex. Legs black (except as stated 

 above), small joints of tarsi obscure reddish ; posterior apex 

 of hind tibiEe broadly and thickly covered with red hair like 

 that on tarsus ; anteriorly the hind tibia has some white 

 hair near end ; anterior and middle legs with the hair black, 

 partly red on tarsi ; anterior tibiae smooth and shining on 

 outer side ; anterior basitarsi broad and thick ; middle basi- 

 tarsi broad and flat, truncate at apex, with an obtuse lobe on 

 inner apical corner ; hind coxa3 and trochanters simple ; 

 hind basitarsi very broad and flat, with a triangular process 

 on inner margin a little before middle ; spurs dark, simple. 

 Abdomen smooth and shining, dorsally without markings ; 

 apical segment triangular, ending in a pencil of hair ; fourth 

 ventral with an undulate margin and its base broadly 

 yellowish white ; sixth ventral triangularly produced. 



$ . — Length about 11 mm. 



Similar to the male, except for the usual sexual characters ; 

 mandibles ferruginous; labrum black, with a red spot on 

 each side, and fringed with copper-red hairs ; face entirely 

 black ; clypeus well punctured ; scape suffusedly red at 

 base ; scutellum somewhat bigibbous ; claw-joints all red ; 

 hind tarsi only obscure reddish, except apically ; spurs 

 simple ; hind femora with a red patch near apex ; hind tibiae 

 behind with a curious patch of pure white material near 

 apex, among the black hairs, the same on each side, entangled 

 in pure white very long-plumose hairs ; on inner side of 



