492 



McNeill 



now form a part of the entomological collection of Stanford 

 University, and the types of the new species here described are 

 consequently to be found there. 



FORFICULID^. 



ANISOLABIS ANNULIPES Lucas. 



Forficasila annulipes Lucas, Am. Soc. Ent. Fr. Bull., 1847, lxxxiv. 

 Anisolabis anmilipes 'QoK. , Biol. Centr. Am. Orth., p. 5. 

 Anisolabis bormansi ScvTiH., Bull. Mus. Comp. Zool., Vol. xxv, p. 5. 

 Anisolabis tnaritmia? Brun. (jiecl^ox.), Proc. U. S. Nat. Mus., Vol. xii, p. 

 192. 



Careful examination of numerous specimens has convinced me that 

 Scudder's species is identical with a Pacific coast species, A. annulipes. 

 The joints of the antennae vary in what appear to be full-grown speci- 

 mens (those 4 or 5 mm. in length have from six to eight joints) from 

 thirteen to nineteen. In many cases, no doubt, the terminal joints are 

 lost. The position of the ring of luteous is quite uncertain. There 

 may be one, two or three joints beyond it and it .may include a single 

 joint or as many as three, or it may be absent entirely. A variable 

 number from one to four or more of the basal joints are also luteous. 

 Scudder's description was based upon a single female, consequently 

 his description of the forceps would apply to that sex only. In the 

 male these appendages are very unsymmetrical, the left one being de- 

 cidedly but regularly curved throughout its length, while the right is 

 bent, leather than curved, not far from the middle, and sometimes 

 the apical half is nearly at right angles to the basal. The femora are 

 only very obscurely banded with fuscous ; indeed, in many cases this 

 character is indistinguishable. The specimens from Albemarle are 

 much larger than the others, the largest measuring 20 mm. in length. 

 The same species was found at Clipperton Island, perhaps a thou- 

 sand miles northwest of the Galapagos group. Snodgrass collected 

 specimens from Albemarle, Chatham and Clipperton. Since all these 

 islands are inhabited, and as this is a cosmopolitan species found in 

 both the new and old world, and as no specimens have been found on 

 any of the uninhabited islands, there can be little doubt that it is an 

 introduced species. 



Clipperton, 22 specimens varying from 4 mm. to full grown ; Chat- 

 ham, 4 specimens; Albemarle, 13 specimens, 5 males. 



