72 Journal New York Entomological Society, t^'o'- xxx. 



enlarged spiracle, noted by Prout, I have not been able to verify. In 

 practice there is never any confusion with the Notodontidse, but with 

 the Geometrid?e, a structurally widely separated family. — Wm. T. M. 

 Forbes. 



Stridulation in Another Family of Lepidoptera: Stridulation has 

 already been reported in a few Lepidoptera (Nymphalidae, Noctuidae, 

 Agaristidee). Last year, collecting a few miles back of El Encanto in 

 the Putumayo district of South America, several males of the- Dioptid, 

 EncJiontha siihlactigera, were taken which made a loud squeaking 

 sound in the net. The stridulating organ is undoubtedly the highly 

 modified fore wing, with the raised file-like veins Mi and 2. The 

 female was not observed, but undoubtedly is silent and has the venation 

 unmodified. — Wm. T. M. Forbes. 



Haploa and Callimorpha (Lepidoptera) : The Old World genus 

 Callimorpha and the nearctic Haploa appear to form the connecting 

 link between the Hypsid-Pericopid series and the Arctiidae. The 

 larvse of the two are identical in structure and unlike either of the 

 related types, having two subventral warts on each of the first two 

 segments of the abdomen, unlike th^ Arctiidae, and wart iz' in its 

 normal place behind the spiracle on the seventh segment of the ab- 

 domen, as in the Arctiidae and unlike the Pericopidse. The true 

 Hypsidse, which are confused with the Pericopidse by Hampson and 

 others, appear to have the tufted hair much reduced, but have not been 

 properly studied, unless possibly Doa, studied by Fracker, can belong 

 to the family. In the imago the same intermediate condition occurs, 

 as the base of So of the hind wing is much swollen, as in the Arctiidae, 

 while the fusion of So and R is shorter than in any other known Arctiid, 

 and in Callimorpha as short as in some Pericopidse. In the Hypsidse 

 the two veins are separate. 



Until more of the exotic larvse are known it would probably be best 

 to retain the two genera in the Arctiidae, where they have been gen- 

 erally placed. In any case, there seems little to gain by separating 

 them from each other as Hampson has done. If not specially allowed 

 for both alike would run to the Noctuidae in a key, not to either 

 Arctiidae or Hypsidae. Of course, this makes the use of the name 

 Callimorphidae for the Hypsidae or Pericopidae impossible. — Wm. T. M. 

 Forbes. 



