BritisJi, H}i)neno2)tera. 283 



posterior tibiae and tarsi and intermediate tarsi clear 

 testaceous. Length 9 — 12 mm. 



Hdh. Generally distributed and common in some 

 localities. The ^ which I have referred to this species 

 is that which F. Smith describes under the name similis. 

 I take it in April and May on Wandsworth Common in 

 the same locality as the ? , and the white silvery pube- 

 scence of the face is so alike in the two sexes that I feel 

 convinced that they belong to the same species. The c? , 

 which F. Smith describes under xanthura, is, I believe, 

 a variety of Afzeliella. I have adopted the name of 

 Wilkella for this species, as it precedes that of xanthura 

 in Kirby's Monograph. 



Macropis, Panz. 



Panz., Faun. Germ., 107, 16. For figures of generic 

 characters see F. Smith, Cat. Brit. Hym., 2nd ed., pi. vi. 



Labial palpi 4-jointed. Maxillary palpi 6-jointed. 

 Anterior wings with two submarginal cells ; posterior 

 femora and tibiae in the e? , and tibiae and metatarsi in 

 the ? , dilated. Abdomen black, shining. 



We have only one species of this genus, which cannot 

 be confounded with anything else. The only other genus 

 with two submarginal cells belonging to this section of 

 the Acutilingues is Dasypuda, whose elongate hairy body 

 and simple legs Avill distinguish it at once. 



1. Macrojns labiata, Fabr. 



Fabr., Syst. Piez., p. 3B3 ; Smith, Cat. Brit. Hym., 

 2nd ed., p. 104. 



Black, shining ; face of 3' white ; labrum black. 

 Abdomen with a narrow apical band on the 3rd and 

 following segments. <? , tibiae dilated ; scopae of 2 yel- 

 lowish white ; metatarsi black. Wings rather smoky. 



(? . Head and thorax largely and closely punctured, 

 clothed with brownish hairs ; face below the antennae, a 

 spot on the mandibles near the base, and sometimes one 

 on the scape of the antennae, yellowish white. Antennae 

 reaching to the base of the abdomen, fulvous beneath. 

 Metathorax coarsely rugose at the base. Abdomen very 

 shining, largely and distantly punctured on the 1st and 

 2nd segments, more closely on the following ; 3rd, 4th, 



