Pomona College Joi-rnal ok Entomoloov 661 



Gnathomerium melanonotum \\ .nxl 



Syii. Mccistocrphalus limaius Wood 



Mcrislocephalus quadratus Wood 



Gfophllus •j;lah('r Hollinan 

 This is a widespn-ad spi-cii's on the Pacific Coast, raii({iii>; tliroughoiit most 

 of California and nortliward to Canada. It is conspicuously attenuated from tlie 

 head caudad, resenihlinjj in its |)roportions a Mecislocephalux. The head and 

 antcnnip are reddish brown, the latter tipped witli pale; the body is of the usual 

 brownish yellow color but having in most a decided greenish or olivaceous tinge; 

 along the dorsum there is counnonly n black stripe which is mostly geminate or 

 double. The ceplialic plate is attenuated caudad. widely rounded posteriorly. 

 Frontal suture distinct. Prebasal plate not exi)osed. The claws of the prelien- 

 sorial feet when closed extend beyond the front margin of the head much ; first 

 joint and claw armed within witli well developed teeth, the intermediate articles 

 with inconspicuous denticles. The first sj)iracle nearly circular, being slightly 

 vertically elli|)tie, and it is much larger than the second. The last ventral plate is 

 moderately wide. The coxopleurte bear a number of mostly small jiores both below 

 and above. The number of pairs of legs varies mostly from forty-seven to 

 fifty-five, forty-nine and fifty-one being common, and in the southern i)art of 

 the state the number ranges prevailingly from fifty-nine to sixty-five pairs. 

 .Vilults mostly from .S,") to .'JO mm. in length. 



Specimens from within the state have been seen from the following loe.ilities: 

 Shasta Springs, Oroville, Pacific drove. Point I.olws, Sausalito. Berkeley .ind 

 Stanford {collected by writer), and from Clareniont and neighboring mountains 

 (Prof. Haker, collector). 



(leiuis Taiyuna gen. nov. 



Head large, the body scarcely narrowed ccphalad, strongly so caudad. The 

 labrum with side pieces la))])ing well over the ends of the middle one but not 

 contiguous mesally; middle ))ieces with many closely set, stout spines on free 

 edge, the lateral pieces with comparatively few, these being bent strongly mesad. 

 Palpi of first maxilliv with long membranous lappets. Palpi of second maxillH- 

 wholly without processes. Ventral pores not detected. Last ventral plate narrow. 

 Coxopleura' with a number of small pores. Anal legs composed of six articles 

 beyond Coxopleura; claw absent or rather slender if present. 



Type. — Taiyuna occidenialis Mcincrt. 



Taiyuna occidentalis Mcincrt 

 Syn. Gcophilus californiensis Bollnian. 

 This species is widespread in the state and shows corresponding v.iri.ition. 

 The number of pairs of legs in specimens about San Francisco, the type locality, 

 varies from sixty-seven to seventy-five, seventy-one and seventy-three being 

 conmionest; but, as usual with members of the group, in going south the number 

 increases. At Los Angeles the author found individuals with as high as eighty- 

 seven pairs (isanfus Chamb., var.) which seemed distinct until more abundant 



