2IO ENTOMOLOGICAL NEWS. [Sept., 'o2 



the imago, and with the larvae and imagines of Corydalis cor- 

 nida and some other Neuroptera. The two myrmeleon larvae 

 differ but slightly in form, so that the following description 

 will apply to both. 



The epicranial suture is obsolete, so the two gense are fused 

 above (Fig. 2, g^ but the forked portion remains, and sep- 

 arates the front (Fig. 2,/) from the gense. .The suture be- 

 tween the front and the clypeus (Fig. 2, <:) is obsolete. The 

 middle portion of the clypeus is produced downward in front 

 and meets the palpiger of the labium. The labrum and ligula 

 (Fig. 2, z) are small and infolded into the mouth, the two 

 adhering together and closing the oral orifice in front. The 

 eye is represented by a conical peduncle (Fig. 4, o) bearing 

 six simple eyes. The antenna (Fig. 4, a) arises from the 

 gena, clo.se to the postero-lateral edge of the clypeus. The 

 mandible (Fig. 3, w) articulates with the clypeus above and 

 apparently with the gena below; it is grooved beneath, and 

 the maxilla (Fig. 3, w'), which is devoid of a lacinia, galea or 

 palpus, fits in the groove, the two forming a duct leading to 

 the pharynx. The remainder of the head is more difficult of 

 analysis. Between the head proper and the prothorax there 

 are two segments (Fig. 2, pg and n). The posterior represents 

 the neck of the imago, the ventral portion being the gula, or a 

 part of it. The dorsal portion of the anterior represents the 

 occiput ; and the lateral' portions the postgense, or rather a 

 part of them, for the postgense of the imago extend forward 

 and articulate with the mandibles. The ventral portion of this 

 segment probably represents part of the gula. The genae are 

 .separated below by a narrow strip of thinner chitin, which pro- 

 Viably represents the submentum (Fig. 2, sm). The mentum 

 is probably repre.sented by a triangular piece (Fig. 2, ni) par- 

 tially fused with the palpiger. The palpiger (Fig. 2,/») bears, 

 on each side, a lobe (Fig. 2, r, x) formed of two triangular 

 pieces. The palpus consi.sts of a large flat ba.sal joint (Fig. 2, 

 />') and three small joints. The ligula is infolded into the 

 mouth as stated alK)ve. 



The pronotum is divided tran.sversely into two pieces (Fig. 

 2, pn, pn^), but these apparently do not represent the scutum 



n 



