96 Mr. K. E. Tianei- on Fosnorud Flt/nienoptera. 



bcfoi'C the middle of the radial ccU^ recurrent iiervure re- 

 ceived at a distance from the apex of the cubital cell equal to 

 the length of the cubital nervurc. 



Hah. Kalamuuda, S.W. Australia ; February. 



The female is the type. I am not sure that these are 

 sexes of the same species, owiug to the dillerencc in colour 

 aud in the sculpture of the meilian segment. The female is 

 nearest to bivittatiis, Turu., but diflers in the sculpture of 

 the median segment, in the absence of a baud on the fourtli 

 dorsal segment, aud in the yellow instead of orange 

 markings. 



Crabro {Solenius) serenus, sp. n. 



2 . Nigra ; scapo, pronoto fascia utriuque, callis humeralibus, 

 mesopleuris autice macula magna, mesonoto macula parva utrin- 

 que angulis anticis, scutello macula utriuque, postscutello linea 

 transversa, segmento niediano maculis 4 magnis, anguste sepa- 

 ratis, segmento dorsali primo macula curvata utrinque, secundo 

 macula transversa utrinque, tertio macula parva obscura utrinque, 

 femoribus anticis macula ajiicali, tibiisque anticis externe basi 

 flavis ; alis fusco-hyalinis, apice obscure caerulesceutibus, veuis 

 nigris. 



Long. 12 mm. 



$ . Mandibles tridentate, the inner tooth short ; clypeus 

 ■with a carina from the base branching in the middle and 

 enclosing an elongatc-ti'iangular apical area^ the angles of 

 tlie area produced into short teeth, a short tooth on each 

 side near the outer angles of the clypeus. Eyes separated 

 at the base of the anteunaj by a distance slightly exceeding 

 half the length of the scape, the second joint of the flagellum 

 as long as the first aud third combined. Front between the 

 eyes concave ; posterior ocelli about equidistant from the 

 eyes and from each other, farther from the posterior margin 

 of the head than from each other ; a broad groove along the 

 inner margin of the eyes near the summit, Pronotum with 

 the anterior margin slightly raised aud produced into minute 

 spines at the anterior angles. Head and thorax minutely 

 punctured, subopaque ; basal area of median segment 

 smooth, divided by a crenulate longitudinal furrow, the sides 

 of the segment smooth and opaque. First abdominal seg- 

 ment gradually broadened from the base, longer than the 

 second, the apex about two-thirds of the breadth of the apex 

 of the second segment. Pygidial area very narrow, liiud 

 tibiae serrate. 



Hab. A pi, New Hebrides; May (JF. W. Frogyatt). 



