174 POMPILID^. 



those of the S , never convolute. Fore wing \^•ith the basal 

 nervure interstitial ; three cubital cells, the 2nd receiving the 1st 

 recurrent nervure before the middle, the 3rd the 2ud recurrent 

 nervure after the middle, the cubital and discoidal nervures 

 both, as a rule, reaching the margin of the \Aing ; legs long, the 

 posterior pair often remarkably so, armature feeble or wanting, 

 the fore tibite and tarsi not ciliated ; abdomen short, 2nd ventral 

 segment without a transverse furrow ; the sting-sheath in the $ 

 sometimes exserted. 



Nothing, so far as I know, has been ascertained about the habits 

 of the species of this genus. They are exceeduigly rare in India 

 and Burma, where 1 have collected. 



Key to the Species. 



A. Wings fuscous or fusco-hyaline. 



a. Abdi.meu yellow, basal margins of seg- 

 ments fuscous or ferruginous C. ornata, p. 174. 



h. Abdomen ferruginous, basal segment 



black C. fusdpeimis, p. 174. 



B. Wings liavo-byaline, apex fuscous. 



a. Abdomen reddish yellow, with rufo- 



fuscous transverse bands C.Jlavo-pictu, p. 175. 



b. Abdomen yehow, with black transverse 



bands C. annulitarsis, p. 175. 



C. Wings hyaline. 



a. Head, thorax, and abdomen testaceous 



yellow, markings brighter yellow .... C. jx^rnix, p. 176. 



b. Head and thoi'ax black. 



a. Markings on clypeus, sides of face, 



pronolum, and median segment white. C. alhovarieyata, p. 176. 

 b' . Markings on clypeus, sides of face, and 



pronotum clear yellow C. claripennis, p. 176. 



345. Ceropales ornata, Smith, Cat. m, p. 179, $ ; Cam. Mem. 3Iunch. 

 L. Ph. Soc. (4) iv, 1891, p. 434. 



" $ . Length 3| lines " (8 mm.). " Head yellow, with a trans- 

 verse fuscous line on the vertex. Thorax yellow ; the mesothorax 

 and base of the metathorax black or fuscous, the former has 

 a yellow spot in the middle ; the legs yellow, variegated with 

 ferruginous stains ; the wings fusco-hyaline. Abdomen yellow, 

 the basal margins of the segments ferruginous ; beneath pale 

 ferruginous, sometimes the basal margins are fuscou.s, in other 

 examples fusco-ferruginous. 



'• Hah. India (coll. W. W. Saunders)." 



34G. Ceropales fuscipennis, S^nith, Cat. iii, p. 179, 5 ; Cam. Mem. 

 Munch. L. Ph. Soc. (4) iv, 1891, p. 432. 



" 5. Length 4 lines" (9 mm.). " Black, the orbits of the 

 eyes slightly interrupted at their vertex, the clypeus, mandibles, 

 and scape in front yellow; the basal half of the ilagellum fulvous 

 beneath. Thorax, the prothorax abo\e, the tegulse, and legs ferru- 

 ginous ; the coxae and trochanters black, the apical joints of the 



