REPORT OF THE STATE ENTOMOLOGIST I905 



117 



Fig. 15 LasxQp- 

 tera carboni- 

 fera, three an- 

 tennal segments 

 of female, much 

 enlarged (Origi- 

 nal) 



Mouth parts 



Female. The jet-black, coarsely granulate eyes are conspicuous, 

 fused dorsally and bordered posteriorly with a narrow line of white 

 scales or scalelike hairs. The short, thick, light 

 brown monilifonn antennae composed of 14 segments, 

 arise between the eyes and are about one fifth as long 

 as the insect. The individual segments are sub- 

 globular with a somewhat irregular row of well 

 marked setigerous elevations near the apical fourth, 

 each bearing a hair as long or longer than the seg- 

 ment, other portions thickly ornamented with minute, 

 chitinous points and with very irregular clear spaces 

 visible as in the case of the European willow gall 

 midge, Rhabdophaga salicis Schrk. Palps 

 consisting of two well marked segments, the basal 

 fusiform with several stout, subapical setae, the apical 

 slightly longer, tapering gradually to a subacute point, 

 well retracted, mandibles strongly excavated interiially, terminating 



in a conspicuous broad, internal 

 tooth. Mesonotum dark brown 

 or black, bordered narrowly an- 

 teriorly and laterally with yellow- 

 ish white, subtriangular scales 

 and with a sparse clothing of 

 yellow hairs posteriorly. Scutel- 

 lum prominent, arched and rather 

 thickly clothed with short, yel- 

 lowish scales; postscutellum dark 

 brown, somewhat lighter anteriorly. Abdomen dark brown w^ith 

 the segments sparsely and somewhat irregularly, margined posteri- 

 orly with whitish scales, terminal 

 segment brownish. Terminal lobes 

 pedicelled, orbicular. Wings hya- 

 line with the membrane rather 

 thickly clothed with long, coarse 

 hairs ; basal portion of the costa 

 and subcosta thickened and thickly 

 clothed with rather large, dark 

 brown striated scales, the subcosta 

 joining the costa at the middle of 

 the wing, which is marked at the 

 point of union by a white spot, the 



Fii 



g. 16 Lasioptera carbonifer; 

 female wing, much enlarged (Original) 



mid 



vein uniting with the border 



Fig 



at the posterior apical fourth, anal 

 vein somewhat angulate near the 

 middle, joining the posterior mar- 

 gin at the basal third. Halteres 

 light brown, basal portion short, 

 stout, apical part slightly fusiform, 

 much elongated, with its tip sparsely clothed with fine, yellowish 



Fig. 17 Lasiop- 

 tera carboni- 

 fer a , last tarsal 

 segment of female, 

 much enlarged 

 (Original) 



8 Lasioptera 

 carbonifera, three 

 antennal segments 

 of male, much en- 

 larged (Original) 



scales. iVnterior lee with 



coxae light 



-ellow^ish, dark brown ven- 



