122 SPOLIA ZEYLANICA. 



middle. Anterior ocellus enclosed in a curved indistinct carina, the 

 two ends of which terminate at the verge of the facial hollow. Thorax 

 and medial area rectangular, the anterior lateral angles prominent. 

 Median segment vertical, almost hidden, its posterior lateral angles 

 produced and toothed. Wings hyaline, nervures dark brown, 

 tegulse dark blue. Abdomen, medially distinctly carinate ; the 

 first segment with a medial short broad groove at base with a slight 

 hollow on each side ; the third segment with the medial and lateral 

 angles dentate, the margins between the teeth straight, not sinuate, 

 an antiapical series of six f oveae on each side of the medial tooth. A 

 magnificently marked species possessing every colour of the rainbow, 

 which its name indicates. Length 7 mm. Expanse 10 to 11 mm- 

 (Four specimens, Colombo.) 



*Nomia basipicta, n. sp. Figs. 1, 2. Col. Mus. No. 225. 



I would place this species in Bingham's Key Class B, Division 

 b, a^, and close to his description of N. pilipes, from which it differs 

 in the following respects. Vertex, front, mesonotum, and scutellum 

 without pubescence. Abdomen very finely and closely punctured 

 throughout, the punctures coarser on the margins of the segments. 

 The enclosed space at base of median segment longitudinally rugose. 

 Black, the basal segment red with a dark brownish patch in the 

 centre reaching the margin and a deep V-shaped hollow at base, 

 wliicli is smooth and shining ; remaining segments dark brown 

 merging into black on the last three. Post- scutellum and margins 

 of second to fifth abdominal segments thickly covered with very 

 fine white plumose pile having a waxy appearance. Legs dull 

 ferruginous brown ; posterior femora with a tubercle beneath. 

 Clypeus and front, from just above bases*bf antennae, cheeks, sides 

 of thorax, median segment (except the enclosed space at base), and 

 legs covered with long silvery pubescence. A variety of the above 

 has the whole abdomen brownish black, no red on basal segment. 

 Abundant at Colombo. Length 10 to 12 mm. Expanse 13 to 

 14 mm. 



Appendix to Mr. Wickwar's Paper by Col. C. T. Bingham. 



PodaUrius wickwari, form, no v. 



6 Head thorax, and abdomen very dark brown, almost black ; 

 legs dark castaneous brown, a narrow transverse band on the ante- 

 rior margin of the clypeus and the tegulae of the wings dull yellowish 

 white, the apical margins of the segments of the abdomen very 

 narrowly testaceous. Head clothed with white pubescence, which 

 is long and comparatively dense on the front, on the occiput, behind 



