378 Mr. F. Smith's descriptions 



anteriorly, and an oblong one on each side, black ; wings 

 hyaline, faintly tinged with yellow toAvards their apex, with 

 the nervures fuscous ; the posterior femora with a black line 

 towards their apex within; the tibige and tarsi black, with the 

 base of the former pale. Abdomen : a black fascia at the base 

 of aU the segments above ; the entire insect yellow beneath, 

 excepting a circular black spot on the pectus. 

 Hab. — North Japan. 



2. Mocrophya vexator. 



Female. — Length 4| lines. Shining black, with white 

 markings. Head : the clypeus, the inner orbits of the eyes 

 and the lower portion of the hinder orbits, Avhite ; the 

 sixth, seventh and eighth joints of the antennte white, tlie 

 apical joint black. Thorax : the anterior tibite and tarsi 

 in front, the posterior coxje, trochanters and base of the 

 femora, white ; the apical half of the first joint of the pos- 

 terior tarsi and the second and third joints white. Wings 

 subhyaline, the nervures fuscous, the stigma white at the 

 base. 



Hab. — North Japan. 



3. Macrophya apicalis. 



Female. — Length 5 lines. Black, with the scutellum 

 and four apical joints of the antenna? white, the tip of the 

 ninth black. Head : the labrum and base of the mandibles 

 white. Thorax : two minute spots on the post-scutellum, 

 a large oblong-ovate spot on the posterior coxre exteriorly, 

 their extreme apex and the trochanters white ; wings 

 hyaline, with a faint yellow tinge, and brightly iridescent ; 

 the nervures black. Abdomen glossy black. 



Hab. — Hakodadi. 



4. Macrophya pacijica. 



Female. — Length 4f lines. Black, with an orange 

 fascia near the base of the abdomen. Head : the antenna? 

 reddish-yellow, the two basal joints black at their extreme 

 apex. Thorax : two minute yellow spots below the scu- 

 tellum ; the anterior and intermediate femora above, and 

 all the tarsi, reddish-yellow ; the extreme base of the pos- 

 terior femora yellow; the apical third of the posterior 

 tibiae, and the tips of the joints of the tarsi black ; wings 

 flavo-hyaline, the nervures fuscous, the stigma pale tes- 



