219 
chitinized beetle, which, one might think, should easily 
be able to avoid the rhynchotal rostrum. There is, however, 
a fact, which, I feel sure, gives the explanation; the fact 
is that a large, central part of the venter is provided 
with a gluey and strongly adherent substance; as already 
noted the Apiomerus was found sitting on its prey, and 
I think there is no doubt about it, that when it attacks 
the beetle, it will suddenly enter the back of the strong, 
but somewhat sluggish beetle, and by help of the glue 
on the underside of the abdomen it may be able to keep 
itself on a safe and solid basis, and in a riding position 
to plant its beak in its unfortunate prey. 
7. A new African Hemipteron. 
Gnathoconus eburneocinctus n. sp. (Fig. 3): Oblong-oval. 
Shining black; the lateral, narrowly reflexed margins of 
pronotum and corium, together with a round- 
ish-oval, callous spot in the center of corium, AR © 
ivory white; the white margin of corium 
brownish fat apex; sides of the hindmost |. x 
part of connexivum and basal half of tibiz, ei: ae 
except the very base, likewise ivory white; ocinctus n. sp. 
Ist, 2nd and basal half of 3rd joints of an- es 
tennæ yellowish. Membrane sordid whitish. Greatly en- 
Vertex of head indistinctly or finely punc- "8 
tate; pronotum, with exception of the shining, transversal 
space in front of middle all over and close to basal 
margin rather strongly, but — the transversal impression 
across middle excepted — not very densely punctate; 
scutellum and corium punctate alike the basal half of 
pronotum, but the corium a little more densely. The 
ivory white spot on corium impunctate or with some 
single punctures. Underside of thorax partly somewhat 
densely and strongly punctate; venter sparsely and finely 
punctate. Length 4—5 mm. 
5 specimens from Colonia Eritrea and Abyssinia. 
