Page:The Gall Wasp Genus Cynips.pdf/90

 twice as long as wide in the bisexual form. Mesonotum of the agamic forms more or less closely but shallowly punctate, with scattering, moderately long, yellow hairs, in part smooth, in part coriaceous to finely rugose between the punctation; the mesonotum of the bisexual females finely or sparingly roughened and sparsely hairy if not entirely smooth and naked; parapsidal grooves continuous or (in a few long-winged forms and several short-winged forms) more or less obliterated anteriorly, not wide, of moderate depth, smooth at bottom (except anteriorly in a few cases), gradually convergent but still not close together posteriorly, gradually divergent anteriorly (or sharply divergent if the thorax is very large and robust); median groove usually lacking (but some varieties have an indication of some median groove, especially posteriorly); anterior parallel lines (in most long-winged agamic forms) narrow to broad, moderately separated, wholly or in part finely punctate, or (especially in short-winged varieties and bisexual forms) not well defined, more obscure or obliterated anteriorly, slightly broadened and more or less divergent posteriorly; lateral lines (in long-winged agamic forms) mostly smooth, naked, rather broad, approaching the scutellum posteriorly but not extending to the parapsidal grooves anteriorly, these lines more or less obliterated in some long-winged varieties and in most short-winged varieties and bisexual forms. Scutellum of normal size, of moderate width, distinctly longer than wide (in long-winged varieties) or small and not much longer than wide (in the forms with the shortest wings), hardly broadened posteriorly, well rounded at the tip (more pointed in some short-winged varieties); flattened to cushion-shaped, often (not always) with a slight flattening, depression, or elevation along the median, longitudinal line; punctate and finely or more heavily rugose; scatteringly hairy, the hairs densest along the edges; with a shallow, arcuate foveal groove (which often grades into the anterior depression of the scutellar disk, especially in short-winged varieties), this groove undivided or at least with not more than a very fine, indefinite division into foveae; a well-defined foveal ridge separating the scutellum from the rest of the mesonotum (the ridge indefinite in some short-winged and bisexual forms); pronotum very narrow anteriorly (in long-winged forms), or broadened and distinctly visible dorsally (in many short-winged forms); laterally rugose and punctate, with not long, not dense, yellowish hairs. Mesopleura (of agamic forms) at least in part and sometimes wholly punctate and scatteringly hairy, smooth and shining between the punctations; the mesopleura of bisexual forms more nearly smooth and naked.

Abdomen of moderate size (in long-winged forms) or larger (in short-winged forms), one-third to three-quarters again as long as high; in some varieties not produced dorsally or ventrally, with the second segment not tongue-shaped; in other varieties (and in all bisexual forms) more or less produced dorsally with the second segment tongue-shaped; the second segment covering one-half to two-thirds of the whole abdomen (less than a half in some short-winged forms); the abdomen usually smooth, shining, and naked except for sparse patches of hairs latero-basally (with even these hairs reduced in bisexual forms), or