1903] Harrington — Fauna Ottawaensis. 223 



Family XXII. — Mellinidae. 



59. M e 1 1 i n u s b i m a c u 1 a t u s, Pack A neat little insect which seems 



to be rare here as elsewhere. One male taken many )^ears ago on 

 Aug. 6 and one female Aug. 5, 1S94 ; the latter was dead in a 

 spider's web, but quite fresh and perfect. 



Family XXIII. — Nyssonidse. 

 Subfamily I. — Gorytmce. 



60. Pseudoplisus phaleratus, Say. A handsome species with 



clouded wings and conspicuous yellow markings on body and legs ; 

 II females, 9 males. 



61. Hoplisus canaliculatus, Pack. Wings and markings paler; 3 



females, 4 males. 



62. Hoplisus simillimus, Smith. Very similar in appearance; i 



female, 3 males. 



63. Hoplisoides nebulosus, Pack. Rare; i female, 2 males. 



Gorytes armatus, Prov., and Philanthus Harringtonii, 

 Prov., described from Ottawa specimens, appear from the descrip- 

 tions to be males of the same species. 



64. Gorytes nigrifrons, Smith (?) One female taken near Hull on 



Aug. 5, 1894, is referred to this species with a little uncertainty. 



Subfamily H. — Alysonince. 



65. Didineis texana, Cr. One female taken at Aylmer Sept. 10, 1893. 



Its capture was quite accidental, for it settled on the ground near me 

 as I sat by the roadside watching a couple of S p h a e r o p t h a 1 m a 

 candensis, Blake, wandering around. 



66. A 1 y s o n G u i g n a r d i i , Prov. One female, two males. 



67. Alyson conic us, Prov. The types of this and of the preceding 



species were collected by Mr. Guignard. Three females, one male. 



68. Alyson melleus, Say. A pretty pale species ; i female. 



69. Alyson t r i a n g u 1 i f e r, Prov. One female, one male. 



70. Alyson op posit us. Say. This appears to be the commonest 



species ; 6 females, 2 males. 



Subfamily III. — NyssontucE. 



71. Nysson lateralis. Pack. A stout black insect with white spots on 



abdomen ; i female, 3 males. 



72. Brachystegus nigripes, Prov. I have received from Mr. 



Guignard, who collected the type, a male, and also under the name 

 Nysson rustic us. Cress, a female, which, although it has the 



