62 
MEMBRA CIDJE. 
Sufficient material is not yet available, but when such is offered a patient 
revision of the group will suggest a subdivision more or less natural in character 
than that here given. 
Dr. Coding* has already separated it thus: 
Tubeucunota.— Pi steriov process of the pronotum furnished with a high or a more or less compressed 
spine or tubercle. 
Bolbonota. — Prothorax rugose and carinated, not foliaceous; body globular, tegmina with short 
irregular cells; dorsum slightly bisinuate. 
The general characters may be stated thus : 
Pronotum sub-acuminate posteriorly, with the sides sinuous; surface rough, 
corrugated and sometimes carinated; tegmina rounded at their tips with irregular 
rhomboidal areas, and occasionally variegated with yellow or whitish spots ; general 
colour of the insects sombre brown or black; front tibia sometimes spatulate; the 
hind legs often prismatic. 
Canon Fowler figures live species of Bolbonota in the B.C.A., and notes that the 
species known are confined to Central and Tropical America, except B. auro-sericea, 
which occurs in North America. 
Tentatively I here group Bolbonota: 
1. Tegmina semi-membranaceous. B.plicala , B. quadripunctata , B. insignia. 
2. Tegmina wholly membranaceous. B. trivialis, B. digesta. 
3. Tegmina densely coriaceous. B. atomaria, B. quinque-lineata. 
4. Tegmina semi-coriaceous. B. luzonica, B. grisea. 
BOLBONOTA INSIGNIS, Fowler. 
(Plate IX. fig. 5, 5a.) 
(Fowler, B.C.A. Tab. II. fig. 2, 2a, 3 var. p. 17.) 
Broad and shining; head comparatively smooth; pronotum convex, almost 
arcuate ; remotely punctured, and furnished with transverse carinte ; lower margin 
of dorsum nearly straight; abdomen greyer black, and much ringed; tegmina 
clouded with brown at the bases and tips ; neuration brown, with a brown spot in 
the centre of each cellule. Difference of locality may explain the comparative small¬ 
ness of my insect. 
Size, 4x3 mm. 
Habitat .—Vera Cruz (Miers). 
Differs somewhat in colouring and in size from the figure given by Fowler. 
* See “Synopsis of American Membracidae,” Trans. Arner. Eut. Soc., vol. xix. p. 258. 
