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Show 108 INSECTA. AGAON, Dalm. They are very remarkable for the magnitude a~~ le~gth of their head, and for their antennre, of which the first JOIDt IS very large and forms a triangular palette; the three last form an abrupt and elongated club. They are covered with hairs( 1 ). EunYTOMA, Illig. Where the antennre are as if knotted and furnished with whir1s of hairs in the males. The ovipositor is short(2)· MxsooAMPE, Lat.-Diplolepis, Fab. Where they are composed, in both sexes, of compact joints and are destitute of the whirls of hairs. The ovipositor is long. The larva of one species inhabits the gall of the wild Rose tree, and devours that of the Cynips, which formed it(3). In the others the abdomen is flattened above, and either triangular and terminated in a long point in the females, or almost cordiform or nearly orbicular. The ovipositor is usually concealed, or but slightly salient. Here the nervure of the superior wings, situated near the margia, is always curved, and unites with the callous point at the exterior edge. The two posterior legs are the longest. The inner spine of the intermediate tibire is small. PERILAMPUS, Lat. Where the mandibles are strongly dentated; the club of the an· tennre is short and thick; the abdomen short, cordiform, and not prolonged at the extremity, and the scutellum thick and salient(4). In the two following subgenera the abdomen of the females is pro· longed into a conical point. The club of the antennre is narrow and elongated. (1) Dalm., Anal. Entom., 30; II, 1-6. (2) Lat., Gener. Crust. et Insect., IV, 27. (3) Lat., Ibid., 29; genus Cynips. ( 4) Lat., Ibid., 30. IIYMENOPTERA. 109 PTEROMALus, La-t.-Cleptea, Fab. Where the thorax is short an d not narrowed anteriorly(!). CLEONYMus, Lat. Where it is elongated and narrowed . also proportionally longer and th anteriOrly. The abdomen is riorly(2). ' e antennre are inserted more infe- . There the nervure of the superior win . IS sometimes straight and u 't t gs, situated near the margin d~ate legs are the lon~est, .:~ et~:t. he cal~ous point. The interme: mshed with a stout spine. mner Side of their tibire is fur- The scutellum projects. EuPELMus, Dalm. Where the infra-costal nervure a . curved, and unites at the extet·· ' s ~n the preceding Insects 1. Th e fi rst J.0 1. Dt of the · t I.o r margm ' bef,o re t h e callous ·' s neath(S) • m ermedlate tarsi is large' and c1'J 1' atepdo mbet.- ENoYnTus, Lat. Where that nervure is strai . raf ther at the branch wh·1 c h cogmhmt ea nd umtes at the callous p o.m t or o the antennce is compressed and t nces the cubital cell. The ~lub runcated at the end( 4). SPALANGIA, Lat. 1D • ihs tinguished from th e preced.m g b th w uc are inserted close to th .Y e generally longer ante e anterior margin of th e h ead(s). nnce, (1) Lat., Ibid., 31. (2) Lat., Ibid., 29 (3) Dalm. Mo · (4) Lat G, nog. of the Pteromalini ., ener. Crust et I . (5) Lat., Ibid., 29. . nsect., IV, 31. |
