MORGAN HEBARD 
417 
We have examined the type of Jlaviscuta Rehn and are able in 
consequence to place that name in the synonymy under rotundata. 
The type of jlaviscuta, a female, is small and of pale coloration 
with colors well preserved. The pronotum and limbs are yellow- 
ish, the former with the dark brown of the tegmina showing 
through caudad, this giving the pronotum a bicolored appear- 
ance. The type of rotundata before us shows these features, but 
to a much less conspicuous degree, the colors having been less well 
preserved in drying. 
An additional female from Orizaba, Vera Cruz, Mexico, and an 
unlabelled pair of this species from the National Museum have 
been examined and compared with other species of the genus. » 
The pygidium of the female type of rotundata has recently 
been figured.'® 
Labia dorsalis (Burmeister) 
1838. F[orjicida\ dorsalis Burmeister, Handb. Ent., ii, ii abth., pt. i, p. 754. 
[Colombia.] 
Motzorongo, Vera Cruz, Mexico, II, 1892, (L. Bruner), 2 cf . 
Cordoba, Vera Cruz, Mex., XII, 6, (F. Knab), 1 [U.S.N.M.]. 
This species, which has usually appeared in the literature as 
the synonymous L. chalyhea of Dohrn, has been recently fully 
considered, as noted under L. rotundata. It is clearly not a syno- 
nym of L. annulata, under which species Burr assigned, at the 
same time, arcuata, dorsalis and other names. 
Prolabia arachidis (Yersin) 
1860. Forjicula arachidis Yersin, Ann. Soc. Ent. France, (3), viii, p. 509, pi. 
X, figs. 33 to 35. [ [Adventive at] Marseilles, France.] 
Vera Cruz, Vera Cruz, Mexico, (T. Heyde), 1 9 . 
Individuals of this species are usually very greasy and thor- 
oughly unpleasant. 
Prolabia triquetra" new species (Plate XXVIII, figures 5, 6 and 7.) 
This species is closely related and very similar in general ap- 
pearance to P. arachidis, differing greatly in the character of the 
forceps in both sexes. The adults before us, with one exception, 
show fully developed wings. 
® See Hebard, Trans. Am. Ent. Soc., xliii, p. 317, (1917). 
>0 Proc. Acad. Nat. Sci. Phila., 1917, pi. XVI, fig. 7. 
“ In allusion to the forceps, which are conspicuously triquetrous in both 
sexes. 
TRANS. AM. ENT. SOC., XLIII. 
