168 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



1880. Hcematopimis crassicornis Piaget, Les Ped., p. 



644. 

 1908. Hcematopimis crassicornis Dalla Torre, Gen. 



Ins., Anopl., p. 11. 

 1916. Ccrvophthiriiis crassicornis Ferris, Ent. News, 

 Vol. 27 (in press). 

 2 — CervopJitliirius tarandi Mjoberg. From Rangifcr taran- 

 dns (Karesuando, Sweden). 



1915. Cerz'ophtliirius tarandi Mjoberg, Ent. Tidskrift, 

 Vol. 36, pp. 283-285, f. 1-4. 



Note: It is extremely doubtful if this is at all dis- 

 tinct from Ccrvophthiriiis crassicornis (N.). 



Genus Eiilinognathiis Cummings 



Eiilinognathiis Cummings, Ann. Mag. Nat. Hist., ser. 8, 

 Vol. 17, p. 90 (1916). 



Head longer than broad, antennas arising just in front of 

 half way, broader behind the antennae than in front. Behind, 

 the head is sunk deep into the thorax. Around the mouth, in 

 front, a circlet of triangular denticles. Abdomen without ter- 

 gites or sternites. Five pairs of pleurites, the anterior pair well 

 devel'oped. First pair of legs small, second and third larger, 

 sub-equal. Hairs on the abdomen modified, long, flattened, 

 parallel-sided, truncate at tip, one row on each segment. 



Type of the genus EnUnognatJiiis dcnticuhTtiis Cummings. 



Recorded from Pcdctidce and Dipodidcc (Rodentia). 



1 — Eiilinognathu's dcnticulatus Cummings. From Pedctes 

 caifer. 



1916. Eiilinognathiis doiticidatits Cummings, Ann. 

 Mag. Nat. Hist., ser. 8, Vol. 17. pp. 90-94, f. 1. 



2 — EiilinognatJiiis aciilcatus (Neumann). From Dipiis sp. 

 (Djerba, Tunis). 



1912. Hccniatopiniis (Polyplax) aciilcatus Neumann, 

 Bui. Soc. Zool., France, Vol. 37, pp. 143-145, 

 f. 5-6. 



Genus Ncohcematopimts Mjoberg 



Neohcematopintis Mjoberg, Ark. f. Zool., Vol. 6, pt. 13, 

 p. 160 (1910); Cummings, Bui. Ent. Res., Vol. 3, p. 393 



