CHAMBERLIN: HENICOPIDAE OF AMERICA NORTH OF MEXICO. 15 



margin and one or two weaker ones parallel with this on anterior 

 portion; a number of longitudinal impressed lines near sides. 



Tarsi of last three pairs of legs biarticulate in the usual way, those 

 of more anterior pairs undivided. Tibial process well developed on 

 the first eleven pairs of legs and also weakly developed on the twelfth. 



Anal legs longer than antennae in about ratio 15:13; longer than 

 penult legs in ratio 5:3; tibia 5.7-5.8 times longer than its greatest, 

 dorso ventral, thickness; first tarsal joint 8 to 9 times as long as thick- 

 ness; second tarsal joint also about 8 times longer than thickness. 



Coxal pores small and circular as in the other species; 2, 3, 3, 3. 



Gonopods of the female with the claw long and rather slender; 

 curved and excavated on mesal side; basal spines 2+2, rather stout, 

 conical and somewhat flattened distad, the inner smaller than the 

 outer. 



Length 7.5-9.5. mm. 



LOCALITIES. North Carolina (Hot Springs! Asheville!); Georgia 

 (Atlanta!); New Jersey (Westfield! Haddonfield!); Pennsylvania 

 (Philadelphia!). 



This species, it may be seen, in general structure and relative pro- 

 portions parallels the preceding species, L. tivius, in a very close and 

 interesting way; but it is at once to be distinguished by its conspicu- 

 ously and constantly larger size and by its more reddish color. It 

 also is less strongly narrowed cephalad, has some dorsal plates of some- 

 what different shape as above indicated, is more hairy and especially 

 seems always to have the tibial and tarsal joints of the anal legs more 

 slender. It seems also to occupy a distinct area, the center of which 

 is probably the higher section of North Carolina and the adjacent 

 parts of neighboring states; while L. tivius apparently occurs only in 

 the lower and coastal region of the southeastern States. 



LAMYCTES PINAMPUS Chamberlin. 

 Pomona college journ. ent., 1910, p. 2, 368, fig. 132 B. 



Lamydes fulvicornis Chamberlin (in part), Ann. Ent. soc. America, 

 1909, 2, p. 191. 



Lamydes pinampus Chamberlin, Ann. Ent. soc. America, 1911, 4, 

 pi. 3, fig. 3. 



DIAGNOSIS. Dorsum dark brown, the caudal segments and often 

 the first one darker; head brown to reddish brown, darker on sides 

 about and in front of ocelli ; legs dusky yellow to brown. Head sub- 



