CHARLES W. HOOKER. 127 



me specimens with the small ocelli characteristic of Thyreo- 

 don, but Schulz seems to have had specimens with large 

 ocelli, for he believes that spectabilis belongs to the Genus 

 Athyreodon. Dr. Schmiedeknecht's description of A. apicalis 

 agrees with spectabilis except for the large ocelli. Judging 

 from this and from a specimen before me in which the ocelli 

 are larger than in normal Thyreodons — though not so large 

 as in A. ikyreodon, I believe that T. spectabilis forms the con- 

 necting link between Thyreodon and Athyreodon^ and that the 

 size of the ocelli is not as yet well fixed. 



Distribution. — This species apparently ranges from Panama 

 to southern Brazil. It was described from Brazil at the Rio 

 Negro, and I have before me specimens from Chauchamayo, 

 Peru, and Hermira Falls, Surinam, Dutch Guiana, sixty miles 

 up the Maroni River. Nothing is recorded of its life history, 

 habits or hosts. 



Location of specimens. — U. S. National Museum, two 9 's, 

 Chauchamayo, Peru ; Surinam, Dutch Guiana. Massachu- 

 setts Agricultural College, Peru. British Museum. 



Thyreodon grenadensis Ashm. 



Thyreodon grenadensis Ashmead, Trans. Ent. Soc. Lond., p. 270, 



n. 179 1900. 



Dalla Torre, Cat. Hym., Ill, p. 185 1901. 



" " Szepligeti, Gen. Ins., Hym., 34nie Fasc, 



p. 25, n. 11 1905. 



Length, 34 mm. 9 . 



Head, thorax, two basal segments of the antennae and four ante- 

 rior legs, except their tarsi and hind coxae, ferruginous ; eyes, flagellum 

 of antennae, hind legs, except coxae, and abdomen, black ; wings hya- 

 line, with a smoky cloud at the basal third enclosing the apex of the 

 submarginal cell and basal vein, and another enclosing the marginal 

 cell, except a small space at its base. 



I have not seen the type or a specimen of this species, and 

 can only give the original description. 

 Type. — 9 . Location unknown.* 

 I am not sure of the identity of this species, and it may 



* It has not been found at either the British Museum or U. S. Na- 

 tional Museum, but may possibly be found in Dr. Ashmead's private 

 material. 



TRANS. AM. ENT. SOC, XXXVIII. 



