Grabwespen. 837 



mediana obscura; alae, fascia radiali obscuriore 



excepta, subhyalinae conicus 



5. Abdomen nigrum; clipeus et pedes maxima pro parte 



nigri Guignardi 



— segmentis duobus basalibus ferrugineis; clipeus 

 flavus; pedes fulvi triangulifer. 



Mares. 



1. Area mediana segmenti medialis triangularis 5 



— — — — semielliptica. . 2 



2. — — — — crasse reticulata 3 



— — haud reticulata 4 



3. Pedes et clipeus nigri oppositus 



— exceptis tibiis posticis, fulvi; clipeus flavus. . . melleus 



4. Area mediana segmenti medialis rugis numerosis ra- 



dialibus distinctis; clipeus et flagellum infra 



flava radiatus 



— subtiliter rugosa, rugis duabus cen- 

 tralibus postice divergentibus; clipeus flavus, 

 macula mediana obscura; flagellum infra testa- 

 ceum conicus 



5. Area mediana segmenti medialis distincte triangularis, 



sine ruga transversa ante apicem sita; pedes 



fulvi, coxis quatuor anticis flavis triangulifer 



— — — — ante apicem ruga transversa di- 

 stincta, ergo formam semiellipticam simulans ... 6 



6. Mesopleurae ubique punctatae Guignardi 



— in parte inferiore striatae striatus. 



Didineis Wesmael. 

 Der Synonymie ist beizufügen : 



Didineis, Saunders, Hymen, acul. Brit. 112, 1893. 



— Fox, Entom. News, V, Nr. 4, 126, 1894. 



— Proc. Akad. N. S. Philad. 303, 1894. 



Didineis lunicornis Fabr. 

 Der Synonymie ist beizufügen: 



f Sphex (Alyson) lunicornis, Blanchard, Cuvier's R. an. Ed. 3, II, 

 t. 123. f. 4, 1849. 



