48 KANSAS ACADEMY OF SCIENCE. 



Philopleridce. 



With threadlike antennae — five jointed; no maxillary palpi; one{l) 

 jyair of simple eyes; one (l) jointed tarsus, blunt and rounded. 

 Trabeculae movable; feelers in both sexes, for the most 

 part, without difference. 



Head broad; abdomen short, elliptical; labrum gen- 

 erally with transioarent projection Docophorus. 



Head somewhat elongated ; abdomen long, with nearly 

 parallel sides; no transj)arent labral projection. . .Nov. Gen. 

 Trabecular immovable. 



Feelers thread-like, with sexual difference. 



Hind head rounded — the male end segment rounded, Nirmus. 

 Hind head sharp cornered; abdominal segments 



blended in the middle Goniocotes. 



Male feelers pincerlite, because of a branch on the third 

 segment. 



Hind head cornered; female end segment, warty; 



male end segment, rounded Goniodes. 



Hind head, rounded; male segment, notched Lipeurus. 



Liotheidce. 

 With club-shaped, four-segmented antennae ; with maxiWary ^labial 

 palpi; with tivo {2) 23airs of simple eyes; with lengthened, tivo- 

 jointed tarsus. 



Without meso-thorax; feelers always concealed. 



Head very broad, without orbital depression Eureum. 



Head broad, with or-bital depression, with greatly-developed 



ligula Nov. Gen. 



Head elongated, with temple corners extending back- 

 ward. 



With sharply-cut-off clypeus, and shallow orbital 



depression Laemobothrium. 



With only rounded sides of head, and long, side 



flaps on labrum Physostomum. 



With meso-thorax. 



Meso-thorax large, sharply defined ; head three-sided ; 



feelers concealed Trinotum. 



Meso-thorax small, only perceptible. 



Orbital depression deep; feelers mostly stretched 



out forward Colpocephalum. 



Orbital depression very slight or lacking; feel- 

 ers concealed Menopon. 



* Tetropthalmus. 



The writer will gladly receive notes of inquiry or of interest in connection with 

 the bird lice, and especially will be glad to receive specimens of lice taken from 

 Kansas birds. Lice can be killed by immersion in dilute alcohol, and then taken 

 out and sent, wrapped in paper, in common envelope. 



* Tetropthalmus belongs, according to Nitzsch's classification, to Menopon ; but Grosse decides it to 

 be a new genus, and calls it Tetroptlialnius on account of its four eyes, two pairs; but these four eyes 

 are present in all Liotheid;e, so this is not at all a generic characteristic. However, on (irosse's au- 

 thority it is iutroiUiced as a genus, and as it has not before been placed iu the scheme the writer 

 gives it its relative position in the classification. 



