Pomona College Journal of Entomology 671 



spicuously narrowed from tliird fourth of length cephalad and abruptly narrowed 

 caudad; the head relatively very small. The cephalie plate is relatively wide, 

 well rounded in front, almost completely concealing the prehensorial feet from 

 above. The flat antennae arc short, contiguous at base and pointed distad. Claw 

 of prehensorial feet not attaining front margin of head. Ventral pores in a 

 sharply delimited median area which varies from circular to transversely elliptical 

 in outline. Last ventral plate very wide, the numerous small coxopleural pores 

 aggregated mostly along its edges. 



Specimens have been seen by the author from Stanford, Claremont and Los 

 Angeles. It is also known from San Diego and Margarita Island. 



Notobius inermis Wood 



Under the name Himantarium inermis. Wood described an individual from 

 tlie Santa Cruz Mountains. He states that it is very similar to teniopsis but 

 differs in having only one hundred and fifteen pairs of legs. Tlie head is described 

 as triangular and moderately wide, the antennae short and said not to be acuminate. 

 Feet robust, short. 



Genus Gosiphilus gen. nov. 



Body much flattened dorso-ventrally. Labrum deeply incised at middle. The 

 coxosternum of first maxillae deeply incised at median line but coxse not separated 

 proximally. Dentate plate of mandible rather narrow. Paratergites or supra- 

 scutella absent. Last ventral plate wide. Coxopleural pores few, mostly covered. 

 Anal legs clawless. 



Apparently most closely allied witli Haplophilus. Established for three 

 species, all of which occur in California and two of them known from nowhere 

 else. 



Key to Species 

 a. Pairs of legs near one hundred and eighty-one. G. bakeri sp. nov. 



aa. Pairs of legs less than one hundred. 



b. Pairs of legs mostly fifty-five to sixty-one. G. minor sp. nov. 



bb. Pairs of legs in the neighborliood of eighty-one. G. laticeps Wood 



Gosiphilus minor sp. nov. 



Cephalic plate widest caudad, conspicuously narrowed anteriorly, sub-trian- 

 gular, wholly covering the prehensorial feet; caudal margin weakly produced from 

 lateral corners to a very obtuse angle at middle; much wider than long (as 31 :23). 

 Basal plate very wide, narrowed from its anterior end caudad, two and one-half 

 times wider than long. Antennae short, thick, contiguous at base. Prostcrnum 

 much wider tlian long ('28:17); chitinous lines very strongly developed. Prehen- 

 sorial feet weak, joints unarmed, claws not attaining front margin of head. 

 Spiracles all circular, the first considerably larger than the second. Ventral pores 

 in a sharply defined transversely elliptical area. Last ventral plate very wide, 

 almost wholly covering the coxopleurae, subquadrate, the sides but slightly con- 

 verging caudad. Coxopleural pores few, partly covered. Anal legs in male 



