84 INSECTA SADNDERSIANA. 



Cacosis NIGER, Plate 3, tig. 1. 

 Sargus niger, Wied. 



Genus PTILOCERA, Wiedemann. 



Ptilocera continua, Plate 3, fig. 2. 



Fern. Ci/anea, thoracis later ibus purpurea variis, antennis niyris srptem- 

 ramosis, apice albis, pedibus piceis, alis fuscis margine postico 

 cinereis. 



Body dark blue : head slightly covered in front with hoary down : 

 eyes pitchy ; all the facets small : mouth black : feelers black, white to- 

 wards the tips, adorned with seven feathered branches : chest adorned on 

 each side with purple reflections : abdomen much broader but not longer 

 than the chest, slightly covered towards the tip with hoary down : legs 

 pitchy : wings dark brown, gray along the hind border, which is almost 

 colourless at the base ; wing-ribs, veins and poisers pitchy. Length of 

 the body 3j lines ; of the wings 8 lines. 



Java, 



Fam. ASILICI, Latr. 



The following twenty-four genera have been formed of this family ; 

 Dioctria, Microstylum, Discocephala, Brachyrhopala, Dasypogon, Rhopa- 

 logaster, Xiphocera, Laphystia, Laphria, Lampria, Hoplistomera, Mega- 

 poda, Ceraturgus, Craspedia, Mallophora, Promacha, Polyphorius, Tru- 

 panea, Asilus, Erax, Protacanthus, Ommatius, Damalis, Atomosia and 

 Leptogaster. 



The European species of Dasypogon have been divided by Loew into 

 the following seventeen groups ; Saropogon, Dasypogon, Stenopogon, 

 Habropogon, Xiphocerus, Holopogon, Eriopogon, Heteropogon, Isopogon, 

 Oligopogon, Stichopogon, Lasiopogon, Cyrtopogon, Anarolius, Acnepha- 

 lum, Pycnopogon and Crobilocerus. 



His divisions of European Asili comprise the following sixteen groups ; 

 Lophonotus, Macq., Eutolmus, Machimus, Mochtherus, Cerdistus, Stilp- 

 nogaster, Itamus, Tolmerus, Epitriptus, Antiphrisson, Asilus, Rhadiurgus, 

 Pamponerus, Antipalus, Echthistus and Philonicus. 



