NO. 1432. NEW SPECIES OF EARWIGS— REHN. 507 



diuiinisbing- in thickness toward the apex, basal joint large, c,ylindrical, 

 strong!}" constricted proxiniad, second small, much narrower than the 

 basal, third joint nearly twice the length of the second, fourth and 

 fifth bead-like, the remainder gradually increasing in length distad. 

 Pronotum subquadrate, slightly broader caudad than cephalad, angles 

 hardly rounded, transverse impression 

 slightly behind the middle broad and 

 moderately impressed, long-itudinal me- 

 dian sulcus subobsolete. Mesonotum 

 transverse, about twice as wide as long-, a 

 very faint median sulcus present. Meta- ""1^3'/ 



notum transverse, almost as long laterad 

 as the mesonotum, caudal margin arcuato- 

 emarginate. Abdomen with the lateral 

 plicae on the three fully exposed prox- 

 imal segments weak and hardly percept- 

 ible except on the third segment; anal 

 segment transverse, more than half as long 

 as broad, the cephalic margin slightly ^ , , 



^ I ^ ft J Fig. 4.— Anlsolabis pluto. x 2. 



emarginate, the median longitudinal sul- 

 cus distinct; subgenital plate transverse trigonal. Forceps short, 

 heavy, recurved in the distal half, the tips with blunt hooks, the inter- 

 nal margins crenulate. Caudal limbs with the proximal joint of the 

 tarsi slightly longer than the distal. 



General color, seal brown; palpi, antennse, and limbs tawny-olive. 



Measurements. 



mm. 



Length of body (exclusive of forceps) 16. 2 



Length of pronotum 2. 9 



Length of mesonotum 1.5 



Length of anal segment 2. 



Length of forceps 3. 



A paratypic female of this species has also been examined. 



Genus LABIA Leach. 



LABIA BRUNNEA Scudder 



1876. [Labia] hrumiea Scudder, Bull. U. 8. Geol. Surv. Terr., II, pp. 257, 258. 

 [Cuba.] 



Cayamas, Santiago Province, Cuba. March 3 and 8. (E. A.Schwarz.) 

 [U.S.N.M.] Two males. 



LABIA NIGROFLAVIDA, new species. 



Type. — Female; Cairns, Queensland, Australia. (Koebele.) [Cat. 

 No. '8168, U.S.N.M.] 



Allied toZ. grandls Bormans, from Australia, New Guinea, and the 

 Aru Islands, but differing in the lesser number of antennal joints, 



