hyaline margin of head. Dorsal anterior plate pointed posteriorly. 

 Trabeculae narrow and pointed in both sexes; antennae filiform and 

 similar in both sexes. Temples rounded but never swollen beyond the 

 extension of the line of the lateral clypeal margin. Ventral occipital 

 bands present, but no dorsal occipital bands as in the genus Philopterus . 

 Occiput with a curved suture originating from the antennal fossa. Pro- 

 thorax rectangular; pterothorax narrow and pointed posteriorly. Abdomen 

 elongate and hairy, with terminal segment of the male rounded posteriorly, 

 terminal segment of female bilobed. Pleurites distinct with re-entrant 

 heads; tergal plates either narrowly separated medially or continuous, 

 or joined by a narrow posterior chitinous strip. Male genitalia with 

 parameres curved and not protruding beyond the mesosome; the latter con- 

 sisting of a flattened plate with central penis. 



Penenirmus alhiventvis (Scopoli, 1763) 



Pediculus albiventris Scopoli, 1763. Ent. Carniolica: 385. 

 Pediculus motacillae J. C. Fabricius, 1776. Gen. Ins.: 310 {,nn 



for P. albiventris Scopoli, 1763). 

 DoGophorus troglodytis Waterston, 1915. Zool. Jb., Abt. Syst., 39: 



27, figs. c-f. 

 Penenirmus longulioeps (Blagoveshtchensky, 1940). Mag. Parasit., 



Leningr., 8: 65 and 88, fig. 19. 

 Type host: Troglodytes troglodytes (Linnaeus) — Winter Wren. 



I have no data on this species and have been unable to find any 

 records of its collection in the United States. 



Measurements: Penenirmus albiventris (Scopoli, 1763) 

 (from Clay and Hopkins, 1951) 



d 9 



Head Length .42 .48 



Head Width .37 .45 



Prothorax Width .20 .25 



Pterothorax Width .33 .40 



Abdomen Length .73 1.13 



Abdomen Width .45 .63 



Total Length 1.33 1.85 



Penenirmus auritus (Scopoli, 1763) 



Pediculus auritus Scopoli, 1763. Ent. Carniolica: 383. 

 Docophorus superciliosus Burmeister, 1838. Handb. Ent., 2: 427. 

 Dooophorus evagans Kellogg, 1896. Proc. Calif. Acad. Sci., 6: 



480, pi. 66, fig. 2. 

 Dooophorus cali fomiensis Kellogg, 1896. Proc. Calif. Acad. Sci., 



6: 483, pi. 66, fig. 6. 

 Penenirmus varius Emerson, 1953. J. Kansas Ent. Soc, 26: 134, 



pi. 2, figs. 6 and 8. 

 Penenirmus auritus aurifrons Carriker, 1956. Florida Ent., 39: 



figs. 34-35. 

 Penenirmus serrilimbus pileatus Emerson and Johnson, 1961. J. 



Kansas Ent. Soc, 34: 40, figs. 11, 18 and 30. 

 Penenirmus serrilimbus asyndesmus Emerson and Johnson, 1961. J. 



Kansas Ent. Soc, 34: 40, figs 12, 21 and 31. 



122 



