142 APPENDIX. 
posteriorly, the incisures, and a central black line on inner edge of posterior margin black; mesonotum 
with two black obconical spots on anterior area, on each of which is a longer but more obliterated spot, 
a posterior discal transverse angulated spot and a small spot in front of the anterior angle of the 
cruciform elevation black; two central spots on basal segment of abdomen, and basal margin of 
remaining segments, black; head beneath, sternum, and legs greenish-ochraceous, abdomen beneath ~ 
more ochraceous; tegmina and wings hyaline, the venation fuscous, the first with the transverse veins 
at the bases of the second and third apical areas infuscate, wings with the inner margin of the 
abdominal area infuscate; anterior femora with two strong spines beneath. Q with a small black spot 
at apex of tegmina. 
Long. excl. tegm. ¢ 21 millim.; exp. tegm. 68 millim. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
PACARINA (to follow the genus Ollanta). 
Pacarina, Distant, Ann. & Mag. Nat. Hist. (7) xv. p. 814 (1905). 
The species enumerated as Proarna signifera, Walk. (anted, p. 13), must also be 
included in this genus. 
1, Pacarina schumanni, sp. n. 
3. Allied to P. signifera, Walk., from which it differs principally by the tegmina, in which the breadth of 
the lower apical area is about equal to the length of the seventh or preceding apical area; the apices 
of the longitudinal veins to the upper three apical areas are also longly lineately infuscate; head more 
produced and less truncately deflected anteriorly. 
Long. excl. tegm. ¢ 18 millim.; exp. tegm. 42 millim. 
Hab. Mexico, Atoyac in Vera Cruz (Schumann, in Mus. Brit.). 
In P. signifera, Walk., the breadth of the lower apical area to the tegmina is 
considerably more than the length of the seventh or preceding apical area, and the 
apical longitudinal veins are not infuscate. 
Subfam. TIBICENINA. 
COLLINA, gen. nov. (to precede the genus TZibicen, p. 18). 
Head (including eyes) about two-thirds of the width of base of mesonotum, front moderately prominent, its 
lateral margins a little discontinuous with those of vertex, eyes not projecting beyond the anterior angles 
of the pronotum, ocelli a little wider apart from eyes than from each other; pronotum shorter than 
mesonotum, its lateral margins ampliated, a little medially angulate; mesonotum to base of cruciform 
elevation almost as long as head and pronotum together; abdomen considerably longer than space 
between apex of head and base of cruciform elevation, above with its lateral areas oblique, beneath with 
the disk globose, the marginal areas depressed, tympanal orifices completely exposed, tympanal coverings 
entirely absent ; opercula in male short, transverse, not extending beyond base of abdomen ; tegmina 
and wings hyaline, first more or less maculate with the basal cell longer than broad. 
Type, C. biolleyz, Dist. 
Odopea medea, Stal, (anted, p. 5), must also be included in this genus. 
1. Collina biolleyi. 
Odopea biolleyi, Dist. Trans, Ent. Soc. Lond. 1903, p. 526°. 
Hab. Costa Rica, Cerro Carisia (Biolley, in coll. Distant 1). 
