. British insects : a familiar description of the form, structure, habits, and transformations of insects. The sixth family, Nyssonidae, brings us among themore wasp-like insects,* many of the species in this, andthe two remaining families being banded or spotted onthe abdomen, or abdomen and thorax with bright , however, exhibit the same colouring as the pre-ceding families. In the Nyssonidae the head is large,the mandibles are but slightly curved, not notched nearthe base, the antennae are straight and threadlike, com-posed of short joints, the eyes ovate. The legs are some-what s
. British insects : a familiar description of the form, structure, habits, and transformations of insects. The sixth family, Nyssonidae, brings us among themore wasp-like insects,* many of the species in this, andthe two remaining families being banded or spotted onthe abdomen, or abdomen and thorax with bright , however, exhibit the same colouring as the pre-ceding families. In the Nyssonidae the head is large,the mandibles are but slightly curved, not notched nearthe base, the antennae are straight and threadlike, com-posed of short joints, the eyes ovate. The legs are some-what spinous, the fore-legs have one comb-like spineon the tibiae, and a corresponding notch opposite to thisin the tarsus. The genera all have three submaro-inalcells in the fore-wings. The family contains five first, Nysson, may be known by the stemmata beino-(as is most common) in a triangle, and by the singularform of the abdomen, the second ventral segmentabruptly forming an angle with the others; the colours * In the preceding families but one yellow-banded species is foundSapyga 208 INSECTS. are black and yellow, legs partially tinged with reddishFig. 55. brown, wings more or less darkened, N. dimidiatus isblack and red, with white mark-ings. The second genus,Gorytes,possesses in some species thelatter peculiarity, but has thestemmata arranged in a genera contain someProfile Outline of Nysson Common species, black andSpiEosus. yellow. The Mih genus, Melli- nus, has the stemmata in a curve, and the petiole ofthe abdomen terminates in a knot. Mellinus arvensis(PI. Til., fig. 6) is one of the most common of the Sand-wasps. It is usually banded and marked as in the plate,but is subject to much variety in this particular. It isabout |- inch in length. The wings have a long pointedmarginal cell, and four submarginal cells.* Of thisinsect Mr. Smith writes as follows: Having fre-quently observed the habits of the Mellinus arvensis,and reared it from
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Keywords: ., bookauthorme, bookcentury1800, bookdecade1870, booksubjectinsects
