1902J Harrington — Fauna Ottawaensis. 219 



13. Clytochrysus nigrifrons, Cress. One male at Aylmer, Aug. , 



determined by Fox. 



14. Clytochrj'sus obscurus, Smith. One male, on Kettle Island, 



Aug. 25, 1894. 



Subfamily l\\ — Thyreophice, 



15. S y n o t h y r e o p u s a dv e n u s, Smith. The males of this and of the 



four following species are remarkable for a curious shield-like expan- 

 sion of the anterior tibiae, making the forelegs look as if they might 

 be used as auxiliary wings. The species have all been determined 

 for me by Fox. None of them are at all common apparently, and the 

 females are very rare. Of this species i female, 3 males, 



16. Synothyreopus tenuiglossus, Pack, One female. Collected 



also by Mr. Guignard. 



17. Thyreopus cribellifer. Pack. Two males. The tibial shield is 



very large, about one-third of it spotted and the remainder fuliginous, 



18. Thyreopus argus, Pack. Two males. The shield is smaller but 



is beautifully mottled with light spots upon a dark ground over ils 

 whole surface, from whence the name. 



19. Thyreopus latipes, Smith. Two males. The pale yellowish 



shield bears several radiating dark stripes. 



20. Blepharipus Harringtonii, Fox, The type female is in Coll, 



Fox, I, however, captured another female near Hull on June 9, 1895, 

 and I have received from Mr. Guignard a male (labelled B. ater). 

 This species is distinguished from the following by the more rugose 

 metathorax, and the female is smaller. 



21. Blepharipus nigricornis, Prov. One male in my collection 



and a female (labelled B. ater, and apparently determined by Prov.) 

 received from Mr. Guignard, 



22. Blepharipus ater. Cress, Two females. Easily separated from 



the foregoing by the enclosed triangular space on metanotum. 



23. Blepharipus (Crabro) niger, Prov. This species, described 



from an Ottawa female from Mr. Guignard, is probably identical 

 with B. Harringtonii, Fox, but I have not seen the specimen. If 

 the same, this name would have priority. 



24. Blepharipus cinctipes, Prov, Two females and one male. 



Very similar to nigricornis, but has the hind tibiae distinctly annu- 

 late with white. 



25. Blepharipus impressifrons. Smith. Two females and two 



males. A pretty little species easily distinguished by the yellow 

 markings on pronotum, scutellum and legs. 



