Jan., '08] ENTOMOLOGICAL NEWS. 15 



The somewhat spatulate labrum is well chitinized for its 

 basal half, especially laterally, and bears a number of slender 

 scales removed in the figure, which shows the cavities into 

 which these scales fitted. The distal portion of the organ 

 strongly suggests an epipharynx, which, however, arises from 

 the underside of the labrum, and is fused with the latter for 

 some distance. 



The weak and functionless mandibles are partly concealed 

 by the labrum. 



The maxillae have the elongate curved lacinia well developed 

 and are probably not altogether functionless, and represent the 

 primitive proboscis. The galea is furnished with a heavily 

 chitinized dorsal ridge. The stipes and cardo are represented 

 by the unjointed basal portion of the maxilla. 



The elongate, six-jointed maxillary palpus has an unnatural 

 curve in the figure and should be recurved from its middle un- 

 der the head. 



The labium has the mentum subquadrate, and the submentum 

 bifurcate, and bears long, slender scales. The palpus termi- 

 nates in a curious structure almost apically situated. This is 

 represented in Fig. 6 and consists of a rather oval pit from 

 which arise a number of clavate hairs, probably having an 

 olfactory function. 



The venation is shown in Fig. 7, where it will be noticed 

 that the jugum is quite large, and that in the fore-wing the 

 radius is six-branched. A curious flap-like organ, possibly 

 a secondary sexual character, is situated on each side of the 

 sternum of segment 4 of the abdomen. 



EXPLANATION OF PLATE II. 



Fig. I. Labrum, </ mandible. 



Fig. 2. Maxilla, a lacinia. b galca, c max. palpus, </ stipes. < cardo. 



Fig. 3. Maxilla, a lacinia, c max. palpus. 



Fig. 4. Labium and palpi. 



Fig. 5. Labrum, from below, showing epipharynx a, b labrum. 



Fig. 6. Pit with clavate hairs, 3d scg. lab. palpus. 



Fig. 7. Wing venation. 



Fig. 8. Fourth segment of abdomen showing flap -like oryan. 



Fig. 9. Terminal segment and genitalia, a valve, b harpe. </ penis, 



c penis sheath. 



Fig. 10. Ventral view of valves (a Fig. 9). 



