146 



of al)ont IGO species of insects which he had taken dnring a 

 two days' stav at Crater Lake, Oregon, in July. 



"Gonatocerus mexicanus," a Mymarid parasitic in the eggs 

 of "Draeculacephala mollipes" in Hawaii. 



BY OTTO II. SWEZEY. 



Two specimens of this Mymarid were caught on sedges 

 at Kapiolani Park, Honolulu, August 26, 1915. In examin- 

 ing the eggs of D. mollipes in sedges, some were found con- 

 taining different parasites than had been previously reared 

 from these eggs here. Rearing some of these parasites they 

 proved to be a Mymarid species, which, on comparison with 

 Dr. Perkins' type of Gonatoceriis mexicanus, apparently agrees 

 with it. This species w^as described from specimens bred by 

 Mr. Koebele from Jassid eggs in grass, Chapultepec, Mexico, 

 in 1907. (Ent. Bnl., Exp^ Station, H. S. P. A., 10, p. 21, 

 1912.) 



At that time Koel)ele was studying egg-parasites of leaf- 

 hoppers, and attempted the introduction of several species 

 from America. This one must have been amongst them, tho 

 there was no record of it. IMy finding it at this time is the 

 first record of its having become established here. 



(JoteirasticliHS heatiis was also bred from eggs of D. mol-, 

 lipes collected the same day at Kapiolani Park as the above. 

 This now makes four different species of parasites breeding 

 in the eggs of this Jassid in Honolulu. Two Trichogram- 

 mids: Jassidoplithora I idea and Westwoodella caerulocepliala, 

 described by Eullaway on pages 22 and 23 of Proc. Haw. 

 Ent. Soc. Ill, 1914. A Eulopid: Ootetrastichus heatus, 

 which ])arasitizes the sugar cane leaf-hop]ier and was purposely 

 introduced from Fiji in 1905. A Mymarid: Gonatoceriis 

 mexicanus. 



The Anar/rus sp. reported on page 9, Proc. Haw. Ent. 

 Soc, III, 1914, as having been bred from eggs of D. mollipes, 

 proved later to be from the eggs of Kelisia pallidum, whose 

 eggs were in the same sedges as those of D. msUipes and were 

 overlooked at the time. 



Proc. Haw. Ent. Soc. Ill, Xo. 3, September, 1916. 



