In the curious little Tingidae, whose integuments exhibit a pattern of network-like ridges, the feet are two-segmented and the scutellum is hidden by the pronotum.
In the thorax the pronotum and prosternum are closely associated with the mesothorax, but the pleura of the prothorax are usually shifted far forwards, so that the forelegs are inserted just behind the head.
In this division are included the rest of the " diggingwasps," distinguished from the Vespoidea by the short pronotum not reaching backward to the tegulae.
In this division the ovipositor issues from the ventral surface of the abdomen; the pronotum reaches back to the tegulae;.
The bees which make up this group agree with the Sphecoidea in the short pronotum, but may be distinguished from all other Hymenoptera by the widened first tarsal segment and the plumose hairs on head and body.
The Cephidae, or stem saw-flies, have an elongate pronotum, a compressed abdomen, and a single spine on the shin of the fore-leg.
The downwardly directed head is covered by the pronotum, and J the three terminal FIG.
The Membracidae are remarkable on account of the backward prolongation of the pronotum After Howard, Year Book U.S. Dept.
The pronotum and elytra are often adorned with bright colours or metallic lustre, and marked with stripes or spots.
The pronotum extends back to the wingbases, and the " waist " is greatly constricted and marked by one or two " nodes."
The pronotum reaches back to the tegulae.
The Siricidae (" wood-wasps ") are large elongate insects also with one spine on each fore-shin, but with the pronotum closely joined to the mesothorax.
The tergite of the prothorax (pronotum) is prominent in all beetles, reaching back to the bases of the elytra and forming a substantial shield for the front part of the body.
The wings are well developed for flight, and there is a tendency in the group, especially among the males, towards an excessive development of the mandibles or the presence of enormous, horn-like processes on the head or pronotum.