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UNITED STATES NATIONAL MUSEUM BULLETIN 224 



out and nowhere produced. Occiput poorly developed 

 both above and below, with scattered, coarse, ventral 

 hairs and at most with a few, very weak, dorsal bristles, 

 scarcely more than hairs. Proboscis short, robust with 

 a basal, dorsal ridge and a few, fine, long hairs ventrally 

 on the basal half. Palpus clearly of two segments, the 

 first segment excavated, the second cylindrical, obtuse, 

 with only fine hairs. The antenna is attached at the 

 upper fourth of the head and is slender. The first two 

 segments are moderately elongate, the first IV2 times 

 as long as the second, and bear only a few minute 

 setae above; the first segment has 2 or 3 fine, bristly 

 hairs below, the second a single, slender, apical, ventral 

 bristle ; third segment about twice the combined length 

 of the first two. 



Head, anterior aspect : The width of the head is about 

 1% times the height. The face is wide and approxi- 

 mately two-fifths the head width. It has nearly paral- 

 lel sides or very slightly widened below and bears dense, 

 appressed, pale, shining, ventrally directed, long micro- 

 pubescence. There are a few fine, scattered hairs over 

 the face and a single transverse row of bristles at the 

 epistomal margin consisting of 10 bristles. Front wide, 

 shining with 2 or 3 fine hairs laterally. The vertex 

 is but little excavated, the ocellarium moderately large 

 but low with a pair of short, black bristles between 

 the posterior ocelli. 



Thorax : The thorax is short and rather high. The 

 short mesonotum is moderately high and rather 

 strongly arched. It bears dense, appressed, setate, 

 undifferentiated pile. Only near the scutellum there 

 are a few, fine, longer dorsocentral hairs. Bristles 

 greatly reduced, short and weak. There are 2 such weak 

 elements on the notopleuron, 3 or 4 linearly above the 

 wing, and on the scutellar margin are 3 pairs of quite 

 short but moderately stout bristles. The scutellum is 

 somewhat convex and rugose, with a few coarse hairs. 

 Lateral callosity of the metanotum pollinose only. Pro- 

 notum with a few quite slender bristles. Posterior 

 mesopleuron, middle sternopleuron and pteropleuron 

 bare. Metapleuron with a row of weak bristles; re- 

 mainder of pleuron appressed micropubescent, or pol- 

 linose. Lateral metasternum with pile. Postmeta- 

 coxal area membranous; presternum fully dissociated. 



Legs : All the femora are stout without being swollen. 

 The hind femur is slightly longer. They lack bristles 

 but bear very fine, appressed, shortened hairs. Hind 

 tibia stout with stout bristles. There is near the base 

 laterally a transverse group of 3 bristles; there is a 

 partially doubled ventrolateral row of longer bristles 

 and there is a stout, dorsolateral bristle on the apical 

 third besides a patch of 4 or 5 spinous setae dorsolater- 

 ally at the base of the tibia. Dorsomedially there is 

 a row of 6 bristles, several of them long. Medial sur- 

 face with dense setae. Hind basitarsus rather slender 

 but strongly curved outward so that the medial surface 

 is concave. It is as long as the next 3 segments. Mid- 

 dle tibia with 5 prominent, anterodorsal bristles, 3 or 4 

 short, posterodorsal and 4 long, posteroventral bristles. 

 Anterior tibia only with 4 or 5 small, short, postero- 



dorsal bristles, 5 longer posteroventral bristles. The 

 apex ventrally bears a basally stout, black, sharp spine 

 bent transversely backward. Basitarsus without modi- 

 fication. Claws slender, curved from the base and 

 sharp. Pulvillus long and narrow. Empodium short 

 but stout. 



Wings: The marginal cell is narrow apically and 

 quite widely open. The second submarginal cell is 

 narrow at the base, widened only in front of the third 

 vein ; the anterior branch of this vein ends at the wing 

 apex. The posterior branch ends well behind. First 

 3 posterior cells open maximally. Upper anterior inter- 

 calary vein nearly as long as the medial crossvein. 

 Discal cell wide ; the anterior crossvein enters the discal 

 cell at or nearly at the middle. Posterior crossvein 

 unusually long. Fourth posterior cell only slightly 

 narrowed. Anal cell open, whole wing villose, includ- 

 ing the basal cells. The third vein forks a little beyond 

 the end of the discal cell. Alula quite narrow ; ambient 

 vein complete. 



Abdomen: The abdomen is robust; at the base it is 

 nearly or quite as wide as the mesonotum with the sides 

 parallel to the end of the third segment, a little nar- 

 rowed beyond and obtuse apically. The surface is 

 coarsely punctulate with fine, appressed setate pile. 

 The first segments laterally have some slightly longer, 

 coarse, nearly erect hairs. Sides of first segment with 

 3 or 4 quite weak bristles. The second segment is rather 

 long with a distinct, subbasal furrow or transverse de- 

 pression at the basal fourth. Females with 6 well de- 

 veloped tergites ; the seventh is narrowed, only a fourth 

 as long as the sixth ; the eighth is concealed beneath and 

 within the seventh, and the female terminalia are quite 

 recessed but bear short acanthophorites, on each side 

 of which is a row of minute, short, inconspicuous spines. 



Distribution: Palaearctic: ArchUaphria ava Ender- 

 lein (1914). 



Genus Tocantinia Carrera 



Figures 5&4, 1128, 1137 



Tocantinia Carrera, Papers Avulsos Dep. Zool. Sao Paulo, vol. 

 12, no. 2, p. 102, 1955. Type of genus: Dasypogon miser 

 Walker, 1854, by original designation. 



The following is Carrera's description in translation : 



Head as wide as the thorax ; face plane and slightly salient 

 in the clypeal region and at the base of tie antenna. The 

 height of the face is three-fourths the height of the eyes and 

 it is a little wider in the buccal margin. Mystax composed of 

 few bristles located in the inferior margin of the face; front 

 slightly concave in the middle ; ocellar callosity with a very 

 few, small bristles ; occipital bristles developed ; proboscis 

 sharply pointed. Palpus with the second segment fusiform and 

 a little smaller than the first antennal segment; it bears small, 

 slender bristles. [Antenas com o primeiro articulo dues vezes 

 motor que o comprimento dos basais rewiidos.] Antenna with- 

 out style, but with a minor apical concavity where is inserted 

 a microscopic spine. Presternum reduced to two small plates 

 between the anterior coxae. Surface of mesonotum densely 

 pollinose with the lateral and dorsocentral bristles well de- 



