COLLECTED IN BORNEO, ETC. 107 



and the basal joint of the tarsi, yellow ; the apical joints of the tarsi 

 rufo-fuscous ; the yellow markings on the legs paler than those on the 

 thorax ; the mesothorax deeply striated longitudinally ; the metatho- 

 rax rugose ; the wings hyaline and iridescent. Abdomen : the four 

 basal segments with a small ovate yellow spot at their extreme lateral 

 margins ; the fifth with a yellow fascia at its base. 



Hab. Borneo (Sarawak). 



This species has a remarkably close resemblance to the Crabro Panzeri of 

 this country. 



Gren. Mellinus, Fabr. 



1. Mellinus crabroniformis. M. niger, scapo palpis„ mandibulis 

 tuberculis pedibusque flavis, abdomine ferrugineo. 



Female. Length 4 lines. The head and thorax black j the legs and 

 abdomen pale ferruginous ; the head and thorax with a thin glittering 

 pale golden pubescence ; the palpi, mandibles and scape of a yellowish 

 white ; the flagellum testaceous, yellow beneath. Thorax smooth and 

 shining ; the tegulae and base of the wings of a yellowish white ; the 

 wings hyaline and splendidly iridescent ; the nervures testaceous ; the 

 metathorax with a subenclosed space at its base, with a row of sulca- 

 tions along the basal margin ; the sides and apex of the metathorax 

 rugose. Abdomen pale ferruginous, smooth, shining and pubescent ; 

 the basal segment petiolated, the petiole curved, clavate at the apex. 



Hab. Borneo (Sarawak). 



I am aware that this insect, if a strict adherence to the neuration of the 

 wings, as a character for generic subdivision, were rigidly adopted, 

 would form a type of a new genus, but the difference is too slight in 

 my opinion to justify such a course ; in other respects it agrees with 

 the insects included in the genus Mellinus ; the principal difference in 

 the neuration of the present species is the elongation of the third 

 discoidal cell. 



Gren. Cerceris, Latr. 



1. Cerceris sepulcralis. C. capite thoraceque nigris, abdomine 

 ferrugineo. 



Female. Length 7i lines. Black, with the abdomen ferruginous ; the 

 head and thorax finely shagreened ; the face with a silvery- white pu- 

 bescence ; the carina between the antennae, an ovate spot on the 

 clypeus, and the mandibles, obscurely rufo-testaceous. Thorax : a 

 minute obscure spot on the posterior margin of the prothorax, late- 

 rally, and a distinct spot on the tegulae in front, pale yellow; the 

 wings brown, their base subhy aline ; the sides of the metathorax 

 covered with hoary pubescence ; an indistinct pale spot on the inter- 

 s' 



