NATURAL HISTORY SOCIETY OF GLASGOW. 107 



11. — On a new species of Blennoccmfa (B. alchemillae), with remarhs 

 on the species allied thereto. By Mr Peter Cameron. 



Blennocampa alchemillae, sp. n. Antennae filiform, longer than 

 the abdomen, the first joint globular, much longer than the 2d, 

 the 3d and 4th nearly equal, the remaining joints a little shorter. 

 Head a little narrower than the thorax, smooth, shining, covered 

 with a fine grey pile. Frontal sutures distinct. Tegulae and 

 basal edge of pronotum white ; scutellum flattish on the top, very 

 smooth and shining; cenchri small, dull white. Abdomen a 

 very little longer than the head and thorax, the apex projecting 

 above, narrow, the sheath of the saws largely projecting and hairy 

 at the apex; sides of abdomen covered sparsely with a white 

 pile. Legs : base of coxae, femora for the greater part, and 

 the extreme apex of posterior tibiae and apical joints of tarsi 

 black ; trochanters, apex of coxae and femora, knees, tibiae and 

 base of tarsi testaceous white. Wings clear hyaline, costa at base 

 and base of stigma whitish testaceous, rest of costa, stigma and 

 nervures black. Marginal nervure joined to 3d submarginal or 

 received in the 4th submarginal cellule ; 2d recurrent nervure 

 received a very little in front of submarginal cellule ; 2d sub- 

 marginal cellule longer and thinner than 3d, angled where it 

 receives the re-current nervure ; 3d submarginal cellule expanded 

 at the apex ; 2d submarginal nervure straight and bent slightly 

 downwards in the direction of the base of the wing ; 2d runs 

 nearly parallel with the 1st ; 3d curved in the middle and running 

 in the direction of the apex of the wing, i.e., in a contrary direction 

 to the other two. 



The male has the antennae a little longer than the body, 

 covered with a short stiff" pile, the joints thicker and more 

 flattened than in the female, their general form being as in 

 Priophorus; the anal lobes pale testaceous. Length 2-J-2J lines. 



The species of Blennocampa with the tegulae and pronotum 

 wdiite are diidsible into three groups, arranged according 

 to the neuration of the posterior wings ; in one group there is a 

 middle cellule in both sexes ; it belongs, therefore, to the section 

 Monophadnus of Hartig, e.g., B. hipunctata ; in the 2d, there is a 

 middle cellule in the female, but none in the male (and this 

 circumstance renders impossible the raising of Monophadnus to 

 generic rank, as has been done by some authors, for if so, the 

 sexes would be separated into diff'erent divisions), e.g., B. lineolata, 



