THE CANADIAN ENTOMOLOGIST 87 



The second specimen recorded has the clavus entirely dark and the apical 

 dark spots of corium larger than usual though, as is characteristic of the species, 

 they fail to reach the lateral margins. 



Lygiis hirticulus \'an Duzee. 29 Juh', '18. 



Camptohrochis nitens Reuter. 8 Aug., '19. 



Camptohrochis sp. 30 July, '19. 



Determined by Knight, who is at work on the genus. 



Monalocoris filicis (Linne). 29 July, '18; 10 Aug.. '19. 



Hyaliodjes vitripennis (Say). 30 July, '19. 



Dicyphiis agilis (Uhler). 30 July, '18. 



Dicyphus famelkus (Uhler). 26 Aug., '19. 



Stronoylocoris stygiciis (Say). 6 Aug., '19. 



Pilophonis amoenus LHiler. 31 July, '18. 



Lopidea media (Say). 29 July, '19. 



Diaphnidia pellucida (Uhler). 30 July, '19; 4 Aug., '18. 



Orthotylus flavosparsus (Sahlberg). 31 July, '18. 



Orthotyliis cruciatus \"an Duzee. 2 Aug., '18. 



Ilnacora malina (Uhler). 3 Aug., '19. 



Onychnmenus decolor (Fallen). 26 July, '19. 



Plagiognathiis spp. 



Several species which cannot be determined at present. 



Campylomma verhasci (Meyer-Diir). 29 July, '18. 



Gerrid^. 



Gerris marginatus Say. 28 July, '18; 8 Aug., '19. 



Limnoporiis riifoscutellatus (Latreille). 8 Aug., '19. 



NOTES ON THE LARV/E AND PUP.E: OF CERTAIN 

 PTEROPHORID SPECIES. (LEPID.).* 



BY J. MCDUNNOUGH, PH.D., 

 Entomological Branch, Dept. of Agriculture, Ottawa. 



In the vicinity of Chelsea, Que., a small village on the Gatineau River 

 about nine miles north of Ottawa, I found the larva? of four Pterophorid species 

 quite abundant during the latter half of May, 1919. Two species, Pterophoriis 

 elliotti Fern, and P. eupatorii Fern., occurred on Eupatorium; two others, Ptero- 

 phoriis homodactyhis Wlk. and Trichoptilus lohidactyhis Fitch, fed on the terminal 

 buds of a Solidago species, the latter being very numerous, the former com- 

 paratively rare. 



Dr. Dyar (1898, Psyche, VIII, 249) has already published notes on the 

 larval and pupal stages of three of these species, viz., T. lohidactyhis, P. elliotli, 

 and P. eupai-orii; in the same paper he is inclined to doubt the specific distinctness 

 of P. homodactylus from P. elliott-ii, which is not to be wondered at when the 

 great similarity of the adults is taken into consideration. Dr. Dyar is correct 

 in considering the larval description of homodactylus published by Fernald in 

 his monograph of the Pterophoridse (p. 41) to be that of elliotti; both larva and 

 pupa of the true homodactylus (the Solidago feeder), however, show excellent 

 characters whereby they may be separated from elliotti and the two are un- 

 doubtedly distinct species. 



-\pril, 1920 



