CHALCIDIDiK. 
Ins. 149 
b. Abdomen fascia basali flava. 
Dimachus (type, Pteromalus discolor, Walk.). 
h h. Abdomen fascia nulla. 
Hemitrichus (type, H. rufipes, sp. n., 1. c. p. 54, 
Sweden). 
B. Pronoti collare subdiscretum. 
c. Antennas postannello parvo. 
c c. Antennae filiformes, postannello cylindrico. 
Pteroscytus (type, Pteromalus scabriculus, Nees). 
d. Antennae breves, clavatae. 
Habritys (type, Pteromalus brevicornis, Ratz.). 
d d. Antennae filiformes. 
Dinarmus (types, D. acutus and^iZoswZwSjSpp. nn. 
pp. 66 & 57, Sweden). 
Uomoporus, id. 1. c. p. 64. Subgenus of Merisus : abdomen subovate ; 
sometimes with the back smooth. Types, Pteromalus fulviventris, Walk., 
and luniger, Nees ; add H. gibhiscuta, chlorogaster, and crassiceps, p. 66, 
and crassinervis, p. 68, spp. nh., Sweden. 
Platytermus, id. 1. c. p. 75. Subgenus of Heuteles, from which it differs 
by its broad vertex and long thorax. Types, P. decorus, Walk., add P. 
brevicornis and specularis, p. 77, fasciculatus (= Mesopolohus fasciventris 
and Pteromalus trochilus, Ratz.), p. 78, and simplex, p. 79, Sweden; spp. nn. 
Psilonotus, id. 1. c. p. 81. Subgenus of Eutelus ; differs from Ambly- 
merus in the antennae being inserted hardly above the clypeus. Types, 
P. aureolus and viridulus, spp. nn., pp. 82 & 83, Sweden. 
Stenomalus, id. 1. c. p. 88. Subgenus of Hetroxys ; extremity of clypeus 
armed with a tooth in the middle. Types, Pteromalus crassicornis, Dalm., 
and P. muscarum, Walk., add S. suhfumatus and rugosus^ spp. nn., 1. c., 
p. 90, Sweden. 
Cecidostiba, id. 1. c. p. 92. Subgenus of Hetroxys, allied to Ccenacis ; 
metathorax short, extremity of clypeus excised in the middle ; episterna 
of the metathorax extending to the coxae. Types, C. rugifrons, collaris, 
and truncata, spp. nn., 1. c. pp. 92-94, Sweden. 
Cricellius, id. 1. c. p. 102. Subgenus of Hetroxys ; vertex not sharply 
bordered in the middle ; postannellus small. Type, C. decipiens, sp. n., 
p, 103, Sweden. 
Holcceus, id. 1. c. p. 104. Subgenus of Hetroxys ; differs from Cricellius 
by its large postannellus. Type, Pteromalus dichrous, Dalm. ; add H. 
torymoides, sp. n., 1. c., p. 106, Sweden. 
Stinoplus, id. 1. c. p. 107. Subgenus of Hetroxys', collar indistinct; 
ventral valve not extending to the middle of the abdomen. Type, Ptero- 
malus militaris, Dalm. ; add S. aureolus, sp. n., 1. c. p. 109, Sweden. 
Habrocytus, id. 1. c. p. 109. Subgenus of Hetroxys ; collar broad ; left 
mandible tridentate, and right mandible four-dentate ; to contain Ptero- 
malus albipennis, Walk., and allies. 
Spintherus, id. L c. p. 129. Subgenus of Hetroxys ; allied to Habro- 
scytus; head narrow towards the mouth; both mandibles tridentate. 
Type, S. obscurus, sp. n., 1. c., Sweden. 
