1S66 ] 149 
AN ESSAY TOWARDS A KNOWLEDGE OF BRITISH HOMOPTERA. 
BY THE BEV. T. A. MARSHALL, M.A. 
{Continued from page 128.^ 
Genus Tettigometra, Latr. 
Belongs to the Falgorim, but was uot known in time to be inserted 
in its place. For full description of the genus, see Flor, Die Rhyn- 
choten Li viands, vol. ii., p. 96, and Signoret, Ann. de la Soc. Ent. de 
Tr., 4me serie, t. 6, 18G6, p. 140. It is sufficient here to remark that 
it differs at first sight from our five other genera of Fidgorina by its 
strong resemblance to Ptyelus and Acocephahis. Ocelli minute, placed 
at the internal basal angle of the eyes, above the antennae. Antennae 
2-, rarely 3-jointed ; basal joint short, globuliform, 2nd joint very minute, 
or obsolete, last joint twice as long as the first, stout, with a short seta 
inserted on its hinder side. Hemelytra coriaceous, strongly punctured, 
furnished at the base with a large moveable plate, analogous to the 
squamula of Symenoptera. 
Fieber has published in the Verhandl. Zool. Bot. Gesellsch. in 
Wien, 1865, Bd. 15, pp. 561-572, a paper entitled " Synopse der Europ. 
Arten Tettigometra,'' containing 23 species, not one of which agrees 
with the British form. Signoret's article above referred to altogether 
ignores Fieber's descriptions of the year before, but includes one or two 
species (out of 25) , unseen by Fieber ; and one of these is apparently 
the insect with which we have to deal in this place. 
Tettigometra impressopunctata (Dufour ?) Signoret. 
Fusco-flava, brunnea, vel sub-olivacea, dense et minus profunde 
punctata, pectore albo nigroque, abdomine nigro. Vertex pronoto 
longior, deplanatus, medio late et minus profunde rotundo-foveatus : in 
medio hujus foveae carina basalis abbreviata, — ita ut verticem fere tir- 
carinatum dicas. Fi'ons supra plana, elypeum versus leviter intumes- 
cens, supra rufescens, fascia inter oculos lata, utrinque abbreviata, 
nigra ; inter antennas ad elypeum usque, alba ; clypeus niger ; rostrum 
fuscum apice nigro. Pronotum late transversum, basi ar^i'uata, medio 
emarginata. Scutellum convexum, magnum, triangulare, punctatum, 
punctis mediis in rugas transversas confluentibus. Hemelytra aequaliter 
punctata, coriacea, unicolora, striola suturali brevi [ultra clavi apicem) 
nigra. Alae ampla?, hyalinae, nervis fuscis. Pedes concolores ; spinarum 
apices in tibiis posticis nigri ; ungues fusci. 
Long. 2 ; alar. exp. 4 lin. 
