758 



MALLOPHAGA AND ANOPLURA {LICE) 



The female measures i-2 to 2 millimetres in length by 1-5 milli- 

 metres in breadth. The male is half the size of the female. 



Life-History. — The female lays ten to fifteen eggs, which it 

 attaches to hairs. These hatch in seven days, and the resulting 

 pediculi become mature in about two weeks. 



Pathogenicity— It produces often a dermatitis, with itching 

 and a greyish discoloration of the skin, said by Dugnet to be caused 



by a pigment produced by the parasite. 

 Erasmus Wilson says that reddish de- 

 posits may be seen on the hairs, due to 

 the faecal matter of the parasite. 



Treatment. — White precipitate oint- 

 ment or some other mercurial prepara- 

 tion. 



Subfamily B: Pedicinin^ 

 Enderlein, 1904. 



Definition. — -Pediculidse with three-jointed 

 antennae. 



Remarks. — Only one genus, Pedicinus 

 Gervais, 1847, is known, and there are three 

 known species found on monkeys — viz., 

 P. euvygasies Burmeister; 1835 (synonym, 

 P. rnicrops Nitzsch and Giebel, 1864), found 

 on Pithecus si^^icws (Linnaeus, 1771); P. longi- 

 ceps Piaget, 1880, found on Lasiopyga mona 

 (Schreber, 1775) ; and P. piageti Strobelt, i8-8i , 

 on Pitheci'ts bvevicaudis (EUiot, 1909). 



Family 2: H^matopinid^e 

 Enderlein, 1904. 



Definition.— Anoplura with head broadest 

 behind, and not prolonged anteriorly into a 

 Fig. S7^-—PolyplaxspinuIosa nozzle-hke projection. Eyes rudimentary or 

 Burmeister: Female. absent. Antennse three to five segments. 



Proboscis very long. Pharynx loiig and 

 narrow. Paraglossse very small. Mesothorax and third to eighth abdominal 

 segments with stigmata. Row of hairs on each abdominal tergite and 

 sternite. l egs suitable for clinging. Tibia and tarsus very short and thick. 

 Tibia with a thumb-like projection. Pretarsal sclerite sometimes present. 



Classification. — Enderlein has divided the family into three subfamilies, 

 which may be recognized as follows: — 



A. Antenna? with five segments: — 



1. Eyes rudimentary, situate on the extremity of a forwardly 

 directed fork-like lateral process from the posterior aspect of 

 the head. Mandibles well developed. Forelegs larger and 

 stronger than other legs. Pretarsal sclerite present — 

 H CB m atopinincE. 



LI. Eyes and eye process absent, mandibles rudimentary. Fore- 

 legs smaller than other legs. Pretarsal sclerite "absent — 

 Linognaihincs. 



B. Antenna? with three segments — EuhcBinatopinince . 



Subfamily H^MAxopiNiN.g^ Enderlein, 1904. 



This subfamily contains only the genus Hmnaiopinus Leach, 181 7, with 

 some twenty known species, of which the type H. sms (Linn.ieus, 1758) Leach, 



