. Bulletin. Natural history; Natural history. \Xli/^^ 219 A PLACIDUS Figs. 218-219.—Phylocentropus, male gen- italia, /i, lateral aspect; B, claspers, caudo- ventral Figs. 220-221.—Phylocentropus, female gen- italia. 3. Apex of eighth sternite broad, the mes- al incision forming 2 wide lobes, fig. 220 lucidus, p. 56 Apex of eighth sternite narrowed and divided into 2 small lobes, fig. 221. placidus, p. 55 Phylocentropus placidus (Banks) Holocentropus placidus Banks (1905/^, p. 15); Phylocentropus maximus Vorhies (1909, p. 711); d^, larva and pupa. Larva (after Vorhies).—Length 15-16 m
. Bulletin. Natural history; Natural history. \Xli/^^ 219 A PLACIDUS Figs. 218-219.—Phylocentropus, male gen- italia, /i, lateral aspect; B, claspers, caudo- ventral Figs. 220-221.—Phylocentropus, female gen- italia. 3. Apex of eighth sternite broad, the mes- al incision forming 2 wide lobes, fig. 220 lucidus, p. 56 Apex of eighth sternite narrowed and divided into 2 small lobes, fig. 221. placidus, p. 55 Phylocentropus placidus (Banks) Holocentropus placidus Banks (1905/^, p. 15); Phylocentropus maximus Vorhies (1909, p. 711); d^, larva and pupa. Larva (after Vorhies).—Length 15-16 mm. Head, pronotum and legs straw yel- low, pronotum with posterior half of lateral border and all posterior border black; body colorless. Labium elongate and styliform. Mandibles short and stocky, dorsal surface with more or less granular teeth and mesal portion provided with a dense large brush. Adults.—Length 9-11 mm. Color vari- ous shades of brown; wings finely and al- most evenly speckled with light brown. Front wings with Rg angled near base and touching stem of M. Male genitalia, fig. 219: cerci ovate, tenth tergite wide, un- sclerotized and almost truncate at apex; claspers appearing ovate from side view, ventral aspect more or less quadrate with a dense brush of black setae along mesal margin; aedeagus tubular, the apex oblique- ly truncate. Female genitalia, fig. 221 : eighth sternite tapered at apex and incised to form a pair of small lobes. Our Illinois records of this species are from two southern localities in the Ozark Hills. The account of its biology is given by Vorhies, who found it making tubular. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
