236 



SPHEGIDjE. 



and 2nd transverse cubital nervures ; the 3rd cubital cell also 

 much uarrowed at the top by the curving inwards towards the base 

 of the cell of the 3rd transverse cubital nervure. Fore tarsi not 

 ciliated. Abdomen with a long, slender, 1-jointed petiole, the 

 remaining segments together abruptly widened, ovate, acute at 

 apex. The $ makes earthen cells and stores them with spiders. 



Key to the Species. 



A. ('olours black and yellow. 



a. Me.sonotum striate. 



«'. Median segment with a medial longitudinal 

 broad furrow. 

 d^. Comparatively large (length 27-30 mm.), 

 a^. Extreme apex of femora and apical half 



of tibiae of posterior legs black .... S. intrudens, p. 236, 

 b^. Femora and tibiae of posterior legs 



entirely yellow S. spinolce, p. 237. 



b^. Comparatively small (length 16-18 



mm.). Apical two-thirds of femora [p. 237. 



and of tibiae of posterior legs black . . S. madraspaianum, 

 b' . Median segment without a broad medial 



longitudinal furrow. [p. 238. 



or. Median segment black S. coromandelicum, 



b^. Median segment variegated with yellow. 



a^. Tibife of the posterior legs yellow . . S. solieri, p. 238. 

 b^. Tibise of the posterior legs black . . S. bilineatum, p. 239. 



b. Mesonotum punctured, not striate S>. jttvannm, p. 239. 



B. Colours chestnut-brown and yellow <S'. fonnosum, p. 239. 



C. Colour dark .-shining cobalt-blue, with glistening 



silvery pubescence S. violaceum, p. 240. 



445. Sceliphron intrudens. 



Pelopoeus intrudens. Smith, Jour, Linn. Soc. 1859, p. 15, $ . 



5 . Head and thorax pubescent, clypeus and the face in front 



densely pruinose ; head, pro- and 



mesonotum finely and very closely 



punctured, the punctures running 



into indistinct striae on the last ; 



scutellum and postscutellum longi- 



_ tudinally, the enclosed raised space 



i^i^^'i^S^K ^ at the base of the median segment 



transversely, and the sides and apex of 



the same obliquely striate ; a medial 



longitudinal broad furrow on the 



raised space on the median segment ; 



the petiole and basal two segments of 



the abdomen smooth and shining, the 



rest of the segments with minute 



c 7- 1 ■^§' J o 1 longitudinal strise. Black, with black 



bcenpnron intrudens, X • l- i ji i ^ >■ , 



pubescence ; the clypeus and front 



•with silvery pile, the apex of the femora, the tibise and basal joint of 



the tarsi of the anterior and intermediate legs, the trochanters, 



