76 ENTOMOLOGICAL NEWS [xXXli, '21 



Brachypremna subsimilis sp. n. 



Related to B similis; mesonotal praescutum obscure yellow with four 

 distinct brown stripes, the outer ones curved strongly laterad to the 

 margin of the sclerite; abdominal sternites each with a linear dark 

 lim\vn median mark that covers approximately one-half of the length 

 of each segment. 



$ . Length 16 mm. ; wing 22 mm. Closely related to B. similis 

 \\ill. (Mexico to Panama), differing as follows: 



Frontal prolongation of the head tumid, light yellow above, brown 

 laterally; mouthparts dark brown; basal segment of the palpus dark 

 brown, the other segments broken. 



Pronotum pale brownish yellow with four darker brown spots. 

 Mesonotal praescutum obscure yellow with four distinct stripes ; the 

 intermediate pair dark brown behind, more reddish anteriorly, the ex- 

 treme cephalic ends of each more shiny and with a small dark brown 

 spot; lateral stripes bent outward almost at a right angle, enclosing a 

 circular area of the ground-color between it and the transverse suture; 

 postnottyn with the pale sublateral stripes approximately as wide as the 

 fusiform median stripe. 



The coloration of the legs is practically identical in the two species, 

 but the tibiae in the present species are paler and the feet somewhat 

 more yellowish. 



The wings are likewise almost identical but here the stigma is paler 

 and Rs less strongly angulated at its origin. 



Abdomen dark brown, the lateral margins of the segments yellowish, 

 v'ery broad on segment one and the base of segment two; sternites 

 olu-ciire yellow with a linear dark brown dash on each, these much 

 longer and more conspicuous than in B. similis, occupying about one- 

 half the length of the segments, on sternites six and seven much 

 longer, occupying almost all of the sclerite. 



Ifclotypc: $, San Roque, Corrientes, February. 1920 



( Sefior Juan Bosq). 



< 



The Bee-genus Ancylosceles Haliday (Hym.). 



B|y T. D. A. COCKERELL 



Much confusion has arisen through the misinterpretation of 

 the Anthophorid genus Ancylosceles, -usually written Ancylos- 

 celis. It was first published with a described species by Hali- 

 day, but his A. nrsinns was so imperfectly denned. that it was 

 impossible to place it with certainty. I have found Haliday's 

 unique type in the British Museum, and it represents a genus 

 which includes Ancyluscc.lis tunualis Vachal, 1904, and such 

 species as arnia/a Smith, recently referred to I.eptcrgatis. 

 Leptergatis halictoides Ilolmbi-rg, represented bv five speci- 



