186 T. D. A. COCKERELL. 



ing to the peculiar form of the tongue, and the comb along the mid- 

 dle of the maxillary blade, The prothorax in Tachytes is of course 

 much more bee like than that of Scolia, and one has to remark that 

 the eyes in Tachytes are extraordinarily similar to those of Protoxaza, 

 converging just the same above. The pygidial plate of Tachytes is 

 also suggestive of the bees. In Gorytes the tongue is very broad 

 and truncate, but not emarginate, and the paraglossae are broad ; 

 the comb of the galea is well developed. Gorytes does not stand 

 so near to the bees as Tachytes. 



The tongue, paraglossse and labial palpi of the Australian genus 

 Hyleoides Smith, as figured by Smith, are almost precisely those of 

 Odynerus, even to the spots on the tongue and paraglossse. I do 

 not know how to explain this; one cannot well believe a bee genus 

 to have been derived from the Eumenidse, although the colors of 

 Hyleoides do rather resemble those of that group. Whether Pro- 

 soph could he derived from such a type as Hyleoides, I do not 

 know, but it seems to me to closely resemble Colletes in its mouth, 

 and if Colletes is derived from a wasp with a Tachytes like mouth, 

 there is no room in the series for such a type as Hyleoides. The 

 maxillary blade of Prosopis is quite like that of Colletes, except that, 

 as in the higher bees, the comb (of about six teeth) is wholly below 

 the palpi ; the maxillary palpi are much longer than in Gollrt, ■>■. 

 The labial palpi and tongue in the two genera are no, essentially 

 different. 



It is to be observed that the bifid tongue is doubtless the older 

 type. The Sphecoidea, Eumenidse and Vespidse are in this respect 

 more primitive than the Scoliidse and the majority of the bees. A 

 Braconid examined has a long divided tongue, which would do very 

 well for a Eumenid, but it has not the Eumenid paraglossse. 



PASIPHAE Spinola. 

 Mr. Vachal remarks that this has a distinct tibial pollen -brush, 

 and cannot go with the Prosopidse. It appears to be a Colletid with 

 only two submarginal cells. 



It I AIM O I. IV \ Dufour. 



This of course is an Andrena with two submarginal cells. Mr. 

 Vachal states that the sixth ventral segment of the % has lateral 

 projecting points as in Parandrena. I possess the 9 only; the 

 abdomen is very strongly and excessively closely punctured; the 

 metathorax suggests Trachandrena. 



