204 ODYNERUS LuEVIPES. 



than in the female, and the intermediate femora tridentate be- 

 neath. 



This insect is very abundant in sandy lanes during the months 

 of June and July ; large colonies are frequently met with : the 

 females store up small green caterpillars as food for the larvae ; 

 the latter, however, are preyed upon by species of Chrysididce, 

 especially Chrysis bidentata ; but I have taken C. iff nit a and 

 C. fulgida hovering about their burrows. 



5. Odynerus laevipes. 



O. niger, glaber, nitidus ; clypeo bidentato, flavo-variegato ; 

 tibiis tarsisque rufo-flavis ( ? ) ; tibiis tarsisque flavis, femori- 

 bus intermediis inermibus ( $ ). 



Odynerus laevipes, Shuck. Loud. Mag. Nat. Hist, new ser. i. 490. 



Sauss. Man. Guepes Sol. 228. 137. 



Odynerus rubicola, Dufour, Ann. Sc. Nat. 2nd ser. xi. 102. 

 Odynerus reniformis, St. Farg. Hym. ii. 606 $ , nee $ . 



Female. Length 4f-5 lines. Black and shining, the head and 

 thorax closely and deeply punctured, and sparingly covered 

 with cinereous pubescence; the head more quadrate than in 

 0. spinipes, and the cheeks somewhat swollen; the clypeus 

 deeply emarginate, not so coarsely punctured as the head, an 

 oblique line on each side at its base, two united spots between 

 the antennae, and a small dot behind the eyes, yellow. Thorax : 

 an interrupted line on the prothorax, a dot in front and behind 

 on the tegulae, the extreme apex of the femora, the tibiae and 

 tarsi, testaceous yellow. Abdomen very delicately punctured, 

 and with a narrow yellow fascia on each of the first five segments, 

 that on the fifth usually abbreviated on each side, the second 

 rather the widest, and slightly dilated at the sides. 



Var. a. With two minute spots on the scutellum. 



The Male is rather smaller than the female, and differs in having 

 the clypeus more deeply notched and yellow, as well as the man- 

 dibles, labrum, and scape in front, the two penultimate joints of 

 the flagellum being ferruginous ; the tegulae black, with some- 

 times a minute dot in front ; the intermediate coxae in front, 

 and sometimes a line on the posterior pair, yellow ; the sixth 

 segment of the abdomen has sometimes an abbreviated yellow 

 line. The intermediate femora not toothed. 



In the year 1836 I collected a number of perforated bramble- 



