SPHEX. 243 



2 . Head, thorax, and abdomen brilliantly polished, smooth 

 and shining; the head and thorax with a very few, scattered, 

 shallow punctures ; clypeiis transverse, very much broader than 

 high, convex in the middle, its anterior margin waved and 

 emarginate ; the median segment long, cylindrical, not much 

 sloped posteriorly but roundly truncate, everywhere strongly 

 and evenly transversely striate ; legs long, slender, the tibiae 

 and tarsi spinose, the spines long ; abdomen petiolate, the petiole 

 short, about the length of the basal segment. Of a brilliant 

 blue-green, the antennae, the tibiae below, and the tarsi opaque 

 black ; the clypeus and sides of the face with silvery pile. 



d similar, smaller, more slender ; the clypeus triangular, not 

 transverse, convex in the middle, its anterior margin with a 

 rounded arch. Wings in both sexes hyaline, slightly flavescent, in 

 certain hghts iridescent, the apical margin lightly fuscous ; nerA'ures 

 brown, tegulae brilliant purplish blue. 



Bah. Throughout India, Burma, Tenasserim, Ceylon, extending 

 to China and the Malayan region to the East, and to Africa to the 

 West. 2 • Length 24-32 ; e.xj}. 52-58 mm. d . Length 15-26 ; 

 e.rp. 28-38 mm. 



455. Sphex regalis. 



Chlorion regalis, Stnith, A. M. N. H. (4) xii, 1873, p. 291. 



Sphex regalis, Kohl, Ann. Naturhist. Hofmiis. Wien, v, 1890, p 179, 



2 ■ Head broad, broader than the thorax, somewhat square 

 above, opaque ; the face on each side of the base of the antennae 

 sulcate, and a vertically impressed line before and behind the 

 anterior ocellus ; pronotum bituberculate ; median segment long, 

 posteriorly roundly truncate, transversely striate ; abdomen polished 

 and shining. Head, thorax in front, femora, tibiae and tarsi 

 of the legs dull brick-red, the tarsi somewhat fuscous ; median 

 segment, coxae, trochanters, and the abdomen brilliant effulgent 

 purple ; wings dark brown, with a purple effulgence, fore wing 

 broadly fuscous at apex, the apex and posterior margin of the 

 hind wing clear hyaline. 



Hah, Karachi, 8ind, extending into Afghanistan and the Trans- 

 caspian regions, and in Africa to the Soudan. 2 • Length 2Q~ 

 34 ; exp. 48-50 mm. 6 . Length 24-28 ; exj^. 42-46 mm. 



456. Sphex splendidus. (PI. I, fig. 9.) 



Cblorion splendidum, Fahr. Sijst. Piez. p. 218; Stnifh, Cat. iv 



p. 2:58. 

 Pronoeus campbelli, Saund. Trans. Ent. Soc. iii, 1841, p. 58, pi. 5, 



fig. 1. 

 Sphex pulchra, Lepel. Hym. iii, p. 355, cf . 

 Chlorion melanosoma, Smith, Cat. iv, p. 238, 2 • 

 Sphex splendidus, Kohl, Ann. Naturhist. Jlofmus. Wien, v, 1890, 



p. 181. 



2 • Head, thorax, and abdomen smooth and shining ; the 



r2 



