354 



spec. as these secondary spinules are glandiilar setae which are 

 bifurcated. In 1905 (p. 17 — 21 and p. 34 — 45) Packard worked 

 out the relationship between the Ceratocampidae and the Spïihu/idae. 

 He believed to have found a proof in the horn, which is built in 

 a simiUir way, on the 8tli abdoniinal segment. 



Dyar (1894, p. 204) says only that on tlie 8th abdominal 

 segment there is the dorsal tuberculum and draws attention to 

 the position of IV and V. Tuberculum IV is placed under the 

 stigma, tuberculum V in front of it. Packard (1905) foUows him 

 here, as Fracker does in 1915. 



I think there is not a single proof of a rotation of 90 degrees like 

 that, round the stigma and I consider IV of Dyar to be in this case 

 s. infnistigmalis (i. e. V) and his V as a s. prostigmalis i. e. as III B 

 of Quail. Further I draw attention to the peculiar secondary setae. 



I was not able to obtain Forbes' work of 1911. 



Sphinx ligustri. 



Material in alcohol. July 1915. Plate XIII, figure 1. 



Instar I. Length 6 mm. 



Prothomx. There are : s. dorsalis, s. subdorsalis^ s. suprastig- 

 malis, s. dorsolateraUs, two s.2))'osfigiiiaIes^ two s. basales^ some small 

 8. p)edales. Beneath s. subdorsaUs, at the same height as 8. dorso- 

 lateralis^ is a s. subdorsaUs inferior. 



Mesothorax. We find two s. dorsales, perhaps arisen from the 

 blending of s. dorsal/s and .s\ siibdoisalis; s. dorsolateraUs united 

 with s. siiprastignialis^ one s. prostignndis in front of a wing 

 rudiment, which at first I thought to be a rudimentary stigma, 

 two 6'. basales, some s. pedales which are small, 



MetatJiorax =:^ Mesothorax but s. dorsolateraUs is simple, and 

 the wing-rudiment is not distinct. 



AbdonwH 1, 2. S. dorsalis^ .s. siibdorsalis, s. sHprastlgniah's, s. 

 prostigmalis, s. infrastigmalis, s. basal/s and ventral of it two 

 setae probably agreeing with the s. pedalis and s. ventral is. 



Segm. 3, 4, 5, 6 = 1. There is a 6'. propedalis and a ö'. ventra/ is. 

 „ 7 = 1 but only one .s. jjropedalis. 



