LESTICOCAMPA LAMPROPUS 167 



the larger one toothed ; mid tarsi with a single claw which bears a large tooth 

 near the tip and a fringe of dense, sharp spines arising sublaterally ; claws of 

 hind tarsi very small, equal and simple ; fonnnla, 1.0-1-0.0. 



Length : Body about 3.5 mm. ; wing 3 mm. 



Type : No. 13708, U. S. Nat. Mus. 



G-enitalia (plate 7, fig. 43) : Side-pieces about three times as long as wide, the 

 tips rounded, uniform, setose ; a short densely tubercular and setose lobe near the 

 base. Clasp-filament long, slender, uniform, with a long terminal claw. Harpes 

 narrowly elliptical with revolute margins, the tips rounded and bearing two stout 

 remote teeth. Unci forming a narrow basal projection. Basal appendages 

 small, rounded, well separated and setose. 



Larva, Stage IV (plate 94, fig. 305). Head rounded, sides tapering before, 

 rounded in front ; mouth brushes rudimentary, antennae small, uniform, slender, 

 with a minute hair at the outer third ; mandibles small, terminal tooth much 

 larger than the others ; ma.xilla3 elongated, narrow, well chitinized and bearing 

 two stout teeth at tip ; mental plate transverse, with fine teeth, the central tooth 

 larger and depressed. Thoracic hairs abundant but short, one of the lateral 

 tubercles bearing a brush of fine, dense hairs. Abdominal hairs very fine and 

 small, except the lateral ones, which are long, coarse and single. Lateral comb 

 of eighth segment of numerous spines in a long, straight row arising from a 

 basal collar-like chitinization, the single spines long and pointed. Air-tube 

 about five times as long as vsdde, tapering regularly outwardly, finely spicular, 

 and with a fringe of long, very fine hairs along posterior margin ; a fine tuft of 

 similar hairs on dorsal aspect near tip ; a heavy black basal ring ; terminal hooks 

 stout, moderate, conspicuous. Anal segment short ; dorsal plate with black an- 

 terior margin and posteriorly emarginate between the hair-tufts, dorsal tip pro- 

 jecting; dorsal tuft of two long hairs and a short one on each side ; lateral hair 

 long, single; subventral tufts of four rather long hairs. Anal gills long and 

 slender. 



Mr. Jennings obtained the larvte from water accumulated in the flower-bracts, 

 of Calathea discolor, where they were associated with the larvae of Wyeomyia 

 eloisa, upon which they were presumably feeding. 



Panama. 



Miraflores, Canal Zone, February 8, 1909 (A. H. Jennings) ; Tabernilla, 

 Canal Zone, April 16, 1909 (A. H. Jennings). 



This interesting and peculiar species has remained heretofore unknown be- 

 cause the plant Calathea had been neglected by collectors until Mr. Jennings 

 made investigation of its guests. Every water-bearing plant in the tropics 

 should be separately investigated, as it will probably be found that each has a 

 fauna of its own, both of vegetable-feeding and predaceous forms, which are not 

 obtained by general collecting. 



LESTICOCAMPA LAMPROPUS, new species. 

 Desceiption of Female and Male of Lesticocampa lampropus (Laeva Unknown) : 

 Female. Proboscis long, slender, labellse rounded, with minute outstanding 

 setae; vestiture brownish black. Palpi short, one-fourth as long as proboscis, 

 bronzy black, with a few outstanding setae. Antennae slender, basal joint about 

 four times as long as wide, terminal ones increasingly somewhat longer, rugose, 

 coarsely pilose, especially on last two joints, black ; tori subspherical, with a cup- 

 shaped apical excavation, luteous, brown within, with fine setae ; hairs of whorls 

 sparse, moderate, black. Clypeus elongate, blackish, nude, with a slight prui- 

 nosity. Eyes black, contiguous at vertex. Occiput smoothly clothed with flat 

 appressed scales, blackish with a metallic blue reflection, a paler margin along 



