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UNITED STATES NATIONAL MUSEUM BULLETIN 224 



Text-Figure 24. — Pattern of distribution of the genus 

 Lamyra Loew. 



Thorax : The thorax is pollinose including the pleu- 

 ron. Pile of mesonotum very scanty, fine and suberect. 

 Humerus with a few, stiff hairs and 3 or more short, 

 stiff bristles. The stout, lateral bristles are only moder- 

 ately long and consist of 2 or 3 notopleural, 4 or 5 

 supraalar, with setae above the postalar region, 3 or 

 4 postalar, bristles, and besides 3 pairs of scutellar bris- 

 tles. The scutellar disc has a few scattered hairs. 

 Propleuron with an abundant tuft of long, fine hairs 

 on the ventral part; the pronotum has 3 or 4 pairs of 

 weak bristles. Upper and anterior mesopleuron with 

 some short, stiff hair, posterior upper border of meso- 

 pleuron with 5 to 7 stout bristles; upper sternopleuron 

 with a few hairs; pteropleuron without pile, hypopleu- 

 ron with a few scattered hairs. Metapleuron with an 

 irregular tuft of 8 or 9 long, stout bristles. Metanotal 

 slopes bullose and micropubesceiit only. Metastenial 

 slopes with a few scattered, long hairs ; the metasternum 

 with numerous, fine, long hairs; postmetacoxal area 

 membranous. Presternum not dissociated, but nar- 

 rowed a little posterolaterally and with an odd an- 

 terior collar. Tegula pubescent only. 



Legs: All the legs elongate; the hind femur is ex- 

 ceptionally lengthened and at least twice as long as the 

 middle femora ; the hind tibia is also long. The femora 

 have rather closely appressed, dense, short setae and 

 all bristles are rather short. The bristles of the hind 

 femur consist of 1 medial at the apex, 1 at the middle, 

 and 2 or 3 near the base, and 3 short lateral bristles 

 near the base besides 2 longer lateral bristles near the 

 middle ; ventrally there are only short, appressed setae. 

 Hind trochanters strongly swollen below, with 1 me- 

 dial bristle and 1 ventral bristle. The hind tibia bears 

 3 or 4 weak dorsal, 1 rather stout ventral at. the outer 

 fourth; at the apex there are only 2 strong, lateral 

 bristles. Middle femur with 2 bristles posteriorly near 

 the apex and 2 at the base and 4 slender bristles ven- 



trally on the basal half; middle tibia with 4 dorsal 

 bristles which are short and weak, 1 stout posterior at 

 the apical sixth and a similar bristle ventrally opposite 

 it. The anterior femur has 7 or 8 weak, stout bristles 

 ventrally, restricted to the basal two-thirds; its tibia 

 has 5 or 6 short, weak anterodorsal bristles and an 

 equal number of posterodorsal bristles ; also 3 or 4 short 

 posterior and 2 rather longer, slightly stouter, postero- 

 ventral bristles at the basal fourth and middle. Apex 

 with 4 ventral and 2 dorsal bristles ; apex without spine. 

 All tarsi end in a well developed pulvilli, stout em- 

 podium, and extremely blunt claws gently curved from 

 the base. 



Wings: The wings are slender, elongate and sub- 

 hyaline. Marginal cell closed with a stalk, first pos- 

 terior cell narrowly open; the anterior branch of the 

 third vein ends at wing apex. Fourth posterior cell 

 closed and stalked; anal cell closed; alula large, 

 ambient vein complete. 



Abdomen : The abdomen is long and slender, widest 

 apically and clavate and as long as the wing. Ter- 

 gite one is unswollen. Pile of abdomen for the most 

 part rather scanty, fine, and minute; it is more abun- 

 dant and slightly longer posteriorly and everywhere 

 flat appressed, except for short fringing hairs along 

 the lateral margins. The sides of the first tergite have 

 2 stout bristles; the extreme lateral edge in the middle 

 of the second to fourth tergite each with a weak bris- 

 tle. Sternites with some fine, long, scattered pile. 

 Male terminalia moderately large and protrusive with 

 quite shallow, bowllike epandrium which may have 

 a laterally posterior tooth or process. The interior 

 structures are openly exposed to the dorsal aspect. 

 The gonopods are not at all apposed but have a dis- 

 tally widened, toothed, posterior process; they tend 

 to curve downward at the apex away from the epan- 

 drium. Female terminalia short; instead of being flat 



