JOURNAL OF ENTOMOLOGY AND ZOOLOGY 23 



stigiiial Held; at ahont iiiidk'ii.utli and lyin- on tlu- lateral mar 

 liiii of the field is an elongate triangidar hlack mark, its jjoiut 

 directed outward; from this point and the margin of the field 

 jnst above its tip, arise three long cnrved hairs directed outward. 

 The \-ential marks ai'c largei', lirownish i)lack, these marks three- 

 pointed at their dorsal end, the innerniost of tliese points con- 

 nectt'd with its fellow of the opposite side; just laterad of tiiis 

 nark is a sh'uder brown line which bears at regular intervals, 

 three long, slender, curved hairs directed caudad ; at the caudal 

 margin of the large mark arise three very large hairs directed 

 \entrad and arising from a common point so that they appear 

 coalesced at their origin. Just laterad of these three bristles 

 is still another delicate hair; so that surrounding the stignual 



Aiitcimal shcatJis enormously enlarged, viewed from beneath, 

 the swollen bases nearly contiguous on the median line; just 

 above ami entad of the cephalic inner margin of the eye, pro- 

 vided with a sharp, chitinized spine placed in an eye like 

 depi'ession. The antenna; bend laterad and doisad to near the 

 pronotal breathing horns and then ventrad, running caudail, 

 closely appressed to the ventral side of the body, lying just 

 inside the inner margin of the wing-sheath and outside the 

 second pail- of legs; the tip of the antenna is just beyond the 

 middle of tin' fonith tarsal segment of the middle legs. In 

 older pupji; the spines on the ventral side of the adult organ are 

 elearly apparent through the cuticle. Cephalic crest (plate Til. 

 E) — From between the bases of the antenna; arises a flattened 

 crest directed cei)halad, deeply bifid by a square median notch, 

 each of the lateral lobes thus formed being provided with 

 chitini/ed points which are beset with s])arse hairs; on each 



