Tenthredinidae. 83 



thorax small; thorax beneath smoke-coloured. Legs: fore and inter- 

 mediate legs and coxae pale castaneous, tibiae and tarsi blue-black; 

 hind legs, coxae, and base -of femora sordid ochreous, the remainder 

 blue-black ; all the legs covered with a silvery pubescence. Abdomen : 

 first two segments sordid ochreous, the following bright steel blue, 

 the blue running back in a V'- sna P e d point into the posterior 

 segments, which are 



(p. 489) sordid ochreous, covered with little castaneous-coloured spots. 

 Wings ferruginous clouded, darkest in the centre, with the exception of 

 the marginal cell, which is almost clear ; stigma ochreous, nervures black. 



Hab. — Cairns, N. Queensland. Named in honour of my late 

 friend, K. H. Nancarrow, of Sandhurst, Yictoria, a most enthusiastic 

 naturalist, who first called my attention to Australian Hymenoptera. 

 (2) Philomastix glabra, n. sp. 



cf. Body, 5 ! / 2 lines; expanse of wings, 12 lines; antennae, 

 3 lines. 



9- Body, 7 lines; expanse of wings, 16 l / 2 lines; antennae, 

 5 lines. 



Ochreous, marked with black; abdomen blue-black, with sordid 

 ochreous markings. $ . Head and first two joints of antennae black ; 

 the base of head behind the eyes, clypeus, labrum, and rest of 

 antennae bright fulvous, mandibJes castaneous. Thorax, pronotum, 

 and below the wings yellow, rest of thorax blue-black; scutellum 

 shining, impressed in the centre, legs castaneous, with the excep- 

 tion of the coxae and base of femora, which are sordid ochreous. 

 Abdomen: basal half of first segment steel-blue, apical half of 

 first and 2 / 3 of second segment sordid ochreous, forming an irre- 

 gular band round abdomen, narrowest in centre of back; apical 

 portion of 2nd and rest of abdominal segments steel blue, the 

 outer edges of last three and margin of anal segment bright 

 fulvous, beneath the apical edge of each segment marked with 

 fulvous, the marks broader towards the posterior. 2- Head shi- 

 ning ochreous, first two joints of antennae, eyes, and tip of the 

 mandibles black, clypeus and mouth parts hairy. Thorax large, 

 ochreous, marked with black in the centre and on either side, below 

 smoky; scutellum bright ferruginous, slightly impressed in tlie centre; 

 legs shining steel-blue, except the base of hind femora and coxae, 

 legs with a silvery pubescence. Abdomen brigiit blue, black abovc 

 and below, a faint line at the apex of first segment, a stripe curving 

 upwards, broadest below, on the sides of the second segment, and 



6* 



