. Fig. 13. Antenn* of L. brevirostris. x 40. below the occipital foramen there is a membranous part with the united stipites of the maxillae. Glypeus is distinctly marked off in the middle of the epistoma below, it is rounded upwards and strongly impressed. Proboscis is short, about half as long as the head is high; it is directed obliquely downwards and forwards; the basal part of labium not as long as the apical; labium truncate at the apex and here faintly hairy; labrum short, as long as the basal part of labium; the maxillae are truncate at the apex and curved distinctly downwards, the max
. Fig. 13. Antenn* of L. brevirostris. x 40. below the occipital foramen there is a membranous part with the united stipites of the maxillae. Glypeus is distinctly marked off in the middle of the epistoma below, it is rounded upwards and strongly impressed. Proboscis is short, about half as long as the head is high; it is directed obliquely downwards and forwards; the basal part of labium not as long as the apical; labium truncate at the apex and here faintly hairy; labrum short, as long as the basal part of labium; the maxillae are truncate at the apex and curved distinctly downwards, the maxillary palpi are short, two-jointed with a small, upwardly bent apical joint; hypopharynx pointed, beset with erect hairs over somewhat more than the apical half. Maxillae and hypo- pharynx are about the length of the labium. Thorax is rectangular, high and distinctly arched above; there are no bristles on the disc but it is clothed with more or less long, somewhat woolly hairs. Scutellum without bristles. On the metapleura there are long, like- wise woolly hairs; hypopleura without long hairs. Methathorax is distinct, there is a large metasternum, the space between it and the hind coxae is membranous. Abdomen consists of eight segments; the first dorsal segment is rather long, longer than in the preceding genera and only somewhat shorter than the second; the first ventral segment is short; in the male the seventh segment is small and the eighth is quite hidden, forming a small annulus at the base of the genitalia. The male genitalia are rather small; they consist of the upper for- ceps with short and thick arms which seem to be united at the base; between the somewhat diverging apices there are two small lamellae, answering to the median dorsal lamella; below the upper forceps are the lower forceps the arms of which are thick at the base, they are as usual two-branched at the apex and very complicated; at the base of the lower forceps there is a roundly triangular median ventr
Size: 3651px × 1369px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlu, bookcentury1900, bookdecade1900, booksubjectdiptera
