E. BERGROTH, ON SOME OPISTHOPLATYINAE. 
69 
medium eorum producto, cellula interiore membranae apicem corii paruni 
superante, medium cellulae exterioris attingente. Abdomen elytra clausa 
latitudine aequans. Long, 8 1 13,8 mm. 
Guinea (Gold Coast, Aburi, A. R. Gould). 
The largest African species, and readily distinguished from all others 
by its pilosity and several other characters. 
N. B. — Distant has placed T. acuticeps Walk, from Guinea as a 
synonym of T. boschjesmana Stål from Natal, but as Stubs species 
(which 1 know) does not agree with Walker’s description, and as the 
species of this genus seem to have a very limited distribution, I think 
there can be little doubt that acuticeps is a distinct species. — T. 
Distanti Horv. 1912 ( orientalis Dist.) = T. comparanda Bergr. 1911. 
Gastrogyrus n. g. 
Caput pronoto subaeque longum, superne in longitudinem et in trans- 
versum convexum, parte anteantennali angusta, oblique deorsum pro- 
ducta, a latere visa subparallela, parte postoculari anteoculari subae¬ 
que longa, ab oculis retrorsum sensim leviter angustata, nonnihil ante 
basin membrana r'ugosa, retrorsum directa, levissime acclivi, marginem 
summum apicalem pronoti tegente et collare hujus simulante instructa, 
hac membrana collum verum a supero et a lateribus omnino tegente 
et occultante, utrinque deorsum flexa et in spinam extremum posterius 
buccularum subtangentem desinente, collo tantum ad basin inferam 
capitis apparente, vertice inter oculos impressione transversa destituto, 
sed in longitudinem sulcato, oculis mediocribus, ne minime quidem pro- 
minentibus, a supero visis oblongis, a latere visis reniformibus, margine 
eorum postico sat profunde sinuato, tuberculis antenniferis magnis, in 
apice frontis altero alterum adjacente positis, sese fere tangentibus, 
articulo primo antennarum capite breviore, secundo primo longiore, 
articulis ceteris brevibus et gracilibus, gula bucculis duabus altis laminatis 
parallelis subtus rectis nonnihil ante basin capitis truncato-desinentibus 
instructa, rostro curvato, a gula sat longe distante, articulo primo crasso, 
marginem anticum oculorum attingente, secundo primo multo longiore, 
post partem suam breviusculam basalem incrassatam paullo inflexo, 
deinde recto et sat gracili, tertio perbrevi, gracili. Pronotum modice 
declive, parum latius quam longius, percurrenter-cruciformiter impressum, 
lateribus angulato-sinuatum, basi ante scutellum leviss.’me rotundatum, 
ante elytra depresso-lobatum, lobo antico postico tertia parte angustiore, 
disco ejus utrinque callo oblongo impressulo, mox pone hunc tuberculo 
et extra callum carinula curvata instructo, lobo postico antico sesqui 
longiore, sat convexo, impressione ejus media profunda, impressione in- 
trahumerali brevi, longitudinali, sat profunda, angulis lateralibus rotun- 
datis, haud prominulis. Scutellum parvum, aequilaterum, medio impres¬ 
sum, postice rotundatum, sed breviter apiculatum. Prosternum sulco 
medio profundissimo antrorsum dilatato praeditum, marginibus sulci 
fortiter elatis. Elytra apicem abdominis longe superantia, corio perbrevi, 
scutello duplo longiore, vix magis quam dimidium exterius elytri basalis 
(sine clavo) occupante, membrana maxima, intus usque ad basin elyt r 
