. Bulletin. Natural history; Natural history. May, 1968 Stannard: The Thrips of Illinois 481. Fig. prothorax. -Lispothripii salicarins, head and illary stylets nearly touching medially within liead. Mouth cone pointed. Prothorax with all major setae fairly well developed, blunt to dilated. Epimeral sutures complete or almost complete. Fore wings reduced to mi- nute pads, hind wings apparently absent. Fore tarsi unarmed. Mid and hind tibiae each with a long, outer apical seta which is blunt; this seta nearly equal in length to the tarsal segments. Pelta wide, extending laterally to a posi
. Bulletin. Natural history; Natural history. May, 1968 Stannard: The Thrips of Illinois 481. Fig. prothorax. -Lispothripii salicarins, head and illary stylets nearly touching medially within liead. Mouth cone pointed. Prothorax with all major setae fairly well developed, blunt to dilated. Epimeral sutures complete or almost complete. Fore wings reduced to mi- nute pads, hind wings apparently absent. Fore tarsi unarmed. Mid and hind tibiae each with a long, outer apical seta which is blunt; this seta nearly equal in length to the tarsal segments. Pelta wide, extending laterally to a position over the outer margins of the hind coxae. Abdomen broad. Abdomi- nal tergite VIII with major posterior setae pointed. Tube nearly equal to head; anal setae two-thirds as long as tube. Male (brachypterous).—Length distended about mm. Similar to female in general color and structure. Fore tarsi unarmed. Abdominal ster- nite VIII lacking a glandular area. Abdominal tergite IX with major lat- eral setae reduced, spinelike. This species differs from crassipes, and hrevicruralis, which may be a synonym, by the long subterminal setae on the mid anrl hind tibiae, (in crassipes and hrevicruralis these se- tae are minute), by the mouth cone which is pointed (not broadly rounded), and by the wider pelta. Although not yet found in Illinois, I have taken saMcarius on willow in the nearby state of Arkansas at Rogers and there are specimens at the National Mussum from Clarksville, Tennessee. Eventually this thrips may be found in our state also. Lissothrips Hood Lissothrips Hood (1908c :365). Type- species by monotypy.—Lissothrips muscoru'm Hood. Head wider than long to longer than wide, surface smooth. Eyes moderate in size to relatively small. Ocelli pres- ent or absent. Postocular setae well developed, pointed to dilated. Cheeks smooth, without any strong bristles. Antennae eight segmented; segment III (Fig. 153) usually smaller than either segment II or segment IV, with
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
