358 THE CANADIAN ENTOMOLOGIST, 



larval parasite is full-grown it eats its way out through one of the anterior 

 segments of its host and proceeds to spin its cocoon. The cocoon is 

 fastened by one end to the body of the caterpillar at a small distance from 

 the place of emergence. The cocoon itself is an elongated oval of yel- 

 lowish-white silk, about 6 mm. in length, and is fastened to the leaf under- 

 neath the body of the larva by a stout strand of silk, which thus also 

 secures the caterpillar to the leaf and prevents its moving. In about a 

 week the adult M. Philippinensis cuts a neat round hole from the top of 

 the cocoon and escapes. Dr. Ashmead's description is as follows : 

 Length, 4.5 mm. Black ; face in front finely, closely punctate, opaque, 

 the thorax above shining, but minutely punctured, the metathorax very 

 coarsely reticulated with a sharp median carina ; palpi yellowish ; legs 

 black or fuscous, the front femora at apex and beneath their tibiae and 

 tarsi, and other legs from tip of femora are yellowish ; the hind tibife are 

 very stout, and are more or less brownish or reddish outwardly from the 

 middle to near the base. Wings with the apical third fuscous, the basal 

 two-thirds subhyaline, the stigma and veins black. 



Nesolynx flavipes, new genus, nevv species, Ashm. — Bred in the 

 Observatory Garden. This minute hymenopteron is a parasite of the 

 above-mentioned insect, M. Philippinensis. On one occasion, when the 

 latter had spun its cocoon on the back of a Sphinx larva, we noticed that 

 a number of small black hymenoptera were hovering round the caterpillar, 

 and as several seemed to alight on the cocoon itself we caught a few, and 

 collected the cocoon and placed it in a test tube with a wad of cotton as a 

 stopper. M. Philippinensis ought to have emerged at the end of the 

 week, but nothing appeared even at the end of two weeks. After three 

 weeks, however, that is three weeks after having observed the small 

 Hymenoptera alight on the cocoon, 32 JVelsolynxflavipesQvcxtrgQd, and on 

 examining them they wtxo. seen to be of the same species as the 

 Hymenoptera previously seen. As the N. flavipes were probably laying 

 their eggs when first obtained and observed, it would show that the whole 

 life cycle of the insects is completed in three weeks. 



Kradibia Broivnii, sp. n., Ashm. Fam. Agaonidte. — Bred in the 

 Observatory Garden. 



Sycoryctes Philippinensis, sp. n., Ashm. Fam. Torymidae. Sub-Fam. 

 IdarnincC.- — -Bred in the Observatory Garden. Both of these insects were 

 obtained from the same fig tree, viz.: Ficus heterophylla, Linn., or Ficus 

 aspera, Forst. The Kradibia is the ordinary fig wasp, while the 



