in the Collection of W. W. Saunders, Esq. 279 



Dasypogon decretus. 



Mas. — Ater, capite cinereo pilis siibtus albidis, tnystace nigro, 

 antennariim articulo 3° clavato, thorace vittis duabus cinereis 

 duabusqiie lateralibus albidis, abdomine albo-canescente, piiis 

 lateralibus albidis, sexualibus rufis maximis, tibiis anterioiibus 

 testaceis, feinoribus anticis fulvo-strigatis, alis cyanco-nigris, 

 lialteiibus ferrugineis. 



Genus Microslylum, Macq. Male. — Deep black. Head with 

 cinereous tomentuni, with some whitish hairs beneath ; ii.ystax 

 with a few black bristles. Third joint of the antennae clavate, 

 a little longer than the first and the second together. Thorax 

 with two cinereous stripes, and with two lateral whitish stripes, 

 which are much more distinct than the cinereous pair. Pectus 

 with whitish hairs. Abdomen witli hoary white tomentura above; 

 second, third and fourth segments with whitish hairs on each side; 

 sexual appendages red, very large. Anterior tibiae testaceous; 

 fore femora with a slight tawny streak. Wings bluish black. 

 Halteres ferruginous. 



Length of the body 7 lines; of the wings 12 lines. 



Burmah. 



Genus Discocephala, Macq. 



Discocephala divisa. 



/o?»i. — Nigra, thorace sat convexo, lateribus pectoreque cine- 

 reis, pedibus validis, alis nigris fascia lata alba, halteribus apice 

 albidis. 



Female. — Black : eyes in front flat and with large facets ; thorax 

 somewliat convex, cinereous on each side; pectus cinereous; legs 

 stout; wings black, with a broad white band beyond the middle; 

 halteres with v\hitish knobs. 



Length of the body 3^ lines; of the wings 7 lines. 



Mexico. 



Discocephala interlineata. 



Foem. — Nigra, capite albido, thorace vittis quatuor luteis pos- 

 tice connexis, lineis duabus interioribus indistinctis pallidis, 

 scutello pallide luteo, pectore albido, abdominis lateribus 

 ventreque cinereis, pedibus albido-setosis, tarsis j)Osticis 

 subtus aurato-tomentosis, alis nigricautibus, halteribus albis. 



Female — Black: head whitish; thorax with four pale luteous 

 stripes, which are united liindward ; two indistinct pale lines be- 

 tween the interior stripes, which are abbreviated in front; scutellum 



