8. Hexapoda. VIII. Hymenoptera. 4. Systematik. 347 



Jtonesta Cress., acerla Cress., JSdwardmGfe8&., intrudens Cress, and alba fa Cress. . 

 Die Anthophorae urnfassen die Genera : a) Diadasia l ] n. gen. (Typus: en am fa Cress. 

 Q = ursma Cress. <$ = densa Cress, (jf u. a.); Emphor' 1 } n. gen. (Typus: bom- 

 btformfs Cress.); Entechnia*} n. gen. (Typus: taurea Say); erstes und letztes Genus 



origin of the first recurrent nervure; basal lobe of the posterior wings extending only 

 to the middle of the submedial cell; scopa of the posterior legs of the female short 

 dense and not conspicuously plumose". 



l ] Diadasia n. gen. (oia-oaoeta) p. 475. Q head small, narrower than the thorax; 

 clypeus little elevated ; ocelli in a line ; labrurn with its anterior border slightly angular, 

 elevated and forming a slight tooth in the middle, the edge deflexecl. Mandibles arising 

 close to the eyes, unarmed. Proboscis not elongate. Maxillary palpi somewhat flattened, 

 joints two and three each nearly twice as long as the first joint, the apical joints dimi- 

 nishing in length. Labial palpi with the first joint longer than the second. Enclosure 

 at the base of the posterior tibiae well marked ; the legs with long and dense pubescence 

 forming the scopa; tarsal claws swollen. Anterior ;wings with the stigma of moderate 

 size ; the marginal cell lanceolate , the tip pointed but not appendiculate ; second sub- 

 marginal cell quadrate , receiving the first recurrent nervure near the apex ; third sub- 

 marginal cell much narrowed towards the marginal; limb of the wing moderately punc- 

 tured ; externo-medial nervure abruptly bent just beyond the origin of the first recurrent 

 nervure ; anal lobe of the posterior wings equalling the submedial cell in length. The 

 lateral impressed lines of the abdominal segments indistinct; area on the sixth segment 

 narrow ; venter with long and dense pubescence. <J antennae little longer , than in 

 the female. Labrum with the deflexed edge broader and the anterior border scarcely 

 angulated. Legs stout, but not unusually long; enclosure at base of posterior tibiae 

 not defined, pulvillus of the usual size; tooth of the claws of the four posterior tarsi 

 considerably shorter than the blunt claw. Pubescence on the posterior legs dense, and 

 as long as in Syllonia Q . Upper surface as well as the under surface of the abdomen 

 with long and dense pubescence. 



2 ) JEmphor n. gen. (ev-tf<6p) p. 476. $. Clypeus little elevated; ocelli in a curved 

 line ; labrum transverse quadrate , the sides slightly rounded out , the anterior border 

 forming a slightly elevated ridge, the edge deflexed to form a distinct face at right ang- 

 les to the upper face; the corners not angulated. Mandibles arising close to the eyes, 

 unarmed , suddenly curved near the base. Proboscis not lengthened ; maxillary palpi 

 flattened, the apical joints more slender, the first, fourth, fifth and sixth joints subequal, 

 the second joint with a fringe of hairs beneath near the tip; the two basal joints of the 

 labial palpi equal in length. Antennae reaching to the tegulae. Posterior legs unusually 

 long, the^ femora swollen, enclosure at base of tibiae not defined, pulvillus unusually 

 small, being minute. The pubescence of the legs short. Anterior wings with the stigma 

 narrow and 'elongate; the marginal cell lanceolate with a distinct straight appendicula- 

 tion; second submarginal cell pentagonal, narrowed towards the marginal, not pointed 

 at the base, but the sides symmetrical, the reccurrent nervure received in the middle; 

 third submarginal cell longer than broad , narrowed nearly one-half towards the margi- 

 nal; limb of the wing coarsely punctured; externo-medial nervure very abruptly bent: 

 anal lobe of the posterior wings extending beyond the middle, but not to the apex, of 

 the submedial cell. Lateral impressed lines of the abdominal segments indistinct; no 

 area on the apical segment; pubescence of the abdomen short and velvety. 



3 ) Entechnia n. gen. (evtepta) p. 476. Clypeus elevated; ocelli in a curved line; 

 labrum quadrate, the anterior margin slightly rounded out and roughened, both the la- 

 teral and anterior edges abruptly deflexed , the inferior corners forming a prominent 

 angle; mandibles arising close to the eyes, unarmed, suddenly curved near the base. 

 Proboscis when folded extending to the base of the abdomen , slender ; maxillary palpi 



