November iSogl 



PSYCHE. 



.427 



stronglv aiul roundly (ieflexed, narrowing 

 anteriorly so as to be scarcely two thiids as 

 broati in front as behind; mesonotmn and 

 metanotuni equal and fiistincll y broadei" than 

 the subequal first and second abdominal 

 segments. Hind femora ovate, similarly 

 arcuate above and below, about twice as long 

 as liroad ; outer hind tibial spurs much less 

 than half as long as the tarsi. Cerci moder- 

 ately stout, hai-dly tapering except in apical 

 half, distinctly shorter than the hind femora ; 

 ovipositor considerably longer than the cerci 

 and fully as long as the hind femora, luteous, 

 apicallydark castaneous. 



Length of body, $, 3.25 mm., J, 3.65 

 mm.; breadth, (J, i.S mm.. J, 2 mm. 



9 J' , S ■? , besides inimatui e speci- 

 mens. British Columbia, G. W. Tay- 

 lor (Bniner) ; Divide (Cottage Grove) 

 Of., Sept. 12, A. P. Morse; Siskiyou, 

 Or., Sept. c;, A. P. Morse, with For- 

 inica iicoriifibarhis Em., as determined 

 by Pergande ; Portland, Or., June 19 

 S. Henshaw, under a stone with ants 

 (Mus. Comp. Zoo!.). It is reported 

 from Victoria. Vancouver's Island, by 

 Fletcher and Taylor. Dr. Fletcher 

 informs mo that it is " common in Brit- 

 isli Coluiidjia under almost every slab 

 of wood in some places, whether there 

 are ants there or not." 



This species is smaller than the two 

 preceding and especially than AI. pcr- 

 gandei\ from both it further diilers by 

 its more convex body and from M. for- 

 micanim by its slenderer form, daiker 

 color (though some specimens seen are 

 quite as light, but probably from im- 

 mersion in alcohol) ;ind shorter hind 

 tibial spurs ; from the next species it 

 differs in the points mentioned under 



that species and from M. nekaivkac 

 liy its mtich gre:iter size. 



Myrmecophila nebrascensis. 



Alyruiccopkila nebrascensis Brun. !, 

 Publ. Nebr. acad. sc, iii, 33 (1S93) — 

 undescribed ; Lugg., Orth. Minn., 260, 

 fig. 169 (1S98) — undescribed. 



Of medium size, oval, conve.t, about half 

 as long again as broad, moderately tomen- 

 tose, testaceous, sometimes feebly infuscated 

 (in which case the disk of the pronotum is 

 clear), the antennae rather longer than the 

 body, uniform testaceous, occasionally feebly 

 duskier, the cerci the same, the legs pale 

 testaceous. Pronotum with front and hind 

 margins truncate, narrowing so as to be 

 nearly three fourths as broad in front as 

 behind, the sides rounded but not full, 

 strongly and roundly dellexed ; mesonotum 

 and metanotum equal and somewhat but not 

 greatly longer than the subequal first and 

 second abdominal segments. Hind femora 

 ovate, similarly arcuate above and below, 

 much less than twice as long as broad; 

 outer hind tibial spurs nearly half as long as 

 tarsi. Cerci rather small, not very slender, 

 tapering only in apical half, very much short- 

 er than the bind femora; ovipositor small, 

 scarcely longer than ceici. 



Length of body, $ , 2.25 mm., ? , 2.5 min. ; 

 breadth, $, 1.5 mm., $, 1.65 mm. 



4 c? , 7 ? . West Point, Nebr. , 

 May 6 in ants' nests — Formica riif 

 (Bruner) ; Santa F(5, New Mex., under 

 a stone, T. D. A. Cockerell, with For- 

 mica exsectoides Forel, as determined 

 by Ashmead, Aug. Lugger Hgiu'es it 

 from Minnesota. 



As noted above, Mr. Pergande states 

 that Formica riifa is not known in 



