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Show 253 II. Sixth antennal joint as long, or very nearly as long, as the first. A. Sixth antennal joint cylindrical, many times longer than broad. 1. A minute scutellum exposed. NEOLOBOPHORA. Head and thorax depressed; abdomen unusually tumid, subcylindrical, the sides full ; antennae more than half as long as the body, with less than twelve joints, mostly long and cylindrical 5 teg-mina present; wings absent; first tarsal joint but lit-tie longer than the third, the second minute bat produced below the third and bilobate; third joint without pad; second and third abdominal segments with distinct lateral plications; forceps long, slender, simple, nearly or quite attingent, unarmed, nearly or quite straight, and longer in the male than in the female. 1. volsella Scudd. Head reddish; rest of body black; mouth- parts and antennae blackish, tinged with red, the latter growing paler toward tip; tegmina nearly square; legs luteous, with the apical half of the femora black; forceps reddish ( 9), or black, reddish at base (<?), with a slight tooth in the middle of inner edge in male. Body 12mm; forceps, f 10.5mm, $ ft***. Mexico. 2. No scutellum exposed between base of closed tegmina. a. Abdomen greatly expanded in middle; penultimate and antepenultimate dorsal segments in male very short. ANOISTEOGASTER. Body depressed, but abdomen somewhat tumid as well as broadly expanded in the middle; antennae nearly as long as the body, 12- jointed, the joints unusually long; tegmina and wings present 3 legs long and slender, first and last tarsal joint nearly of the same length, the second short but produced far below the third and bilobed; third joint without pad; second and third abdominal joints with lateral plications, and fourth and fifth joints with extreme lateral posterior prolongations; forceps not so long as abdomen, subcylindrical, either straight, attingent, simple ($), or strongly bowed, the tip expanded and toothed, the extreme base with an inner tooth (<?). f Sides of fourth and fifth abdominal segments slightly 1 and sharply produced posteriorly 1. gulosa. J Sidesof third, fourth, and fifth abdominal segments greatly [ and sharply produced posteriorly 2. spinax. 1. gulosa Scudd. Very dark brown; palpi and antennae pale brown; wings pale dull luteous; posterior prolongations of fourth and fifth segments inconspicu- . ous; legs dull luteous, more or less infuscated; forceps of the male with the tip depressed laminate, either extremity of it produced to a fine point, the middle of inner border smooth. Body 11 ™ ; forceps, <? 4mm, $ 3mm. Mexico. |