1870.] 



l!(il 



This species is not oominon, but seems to be generally distributed 

 in England and Scotland. 



4. SiMiLis, n. s. 



Colonr and markings as in S. carnaria. Thorax with four pos- 

 terior dorsal bristles. Second abdominal segment destitute of central 

 spines upon the edge. Length, 4 — 71 lines. 



This species only diirers from S. carnaria in one essential point, viz., by the central 

 portion of the edge of the second abdominal segment being unarmed with spines. The 

 bristles in the dorsal thoracic rows are similar in number, size, and arrangement to those in 

 species 1. The specimens vary in size greatly, as in that species; and the legs are ciliated 

 in the same manner, many of the large specimens having quite a long beard upon the middle 

 tibiae of the tJ , when they correspond to the S. matertera of Rondani. The 9 resembles 

 the d , except in the hairiness of the legs, and in the width of the frontal space. 



Generally distributed, but much less common than S. carnaria. 



5. Melakuea, Meig., Macq., Zett., Walk., Rond. 



Yellowish -grey, striped and tessellated with brownish -black. 

 Frontal space wide. Thorax with three posterior dorsal bristles. Se- 

 cond abdominal segment without central spines. First anal segment 

 in ^ black, and extruded. Costal spine of wings distinct. 



Length 4 — 5 lines. 



Sead : forehead rather less prominent than in S. carnaria. Frontal space equal in 

 width in <J to one-third of the head, and equal to nearly half in ? . 



Thorax : three posterior and two anterior dorsal bristles, as in S. alhicejps. 



Abdomen without central spines upon the edge of the second segment. Both the anal 

 segments in <J shining black, the first ex- 

 truded. Wings mostly with a distinct 

 costal spine. Legs with middle tibiie of 

 <J shortly ciliated. In general colour and 

 design similar to S. carnaria, but the black 

 is usually of a more rust^' tint, and the 

 white and grey spots on abdomen are some- 

 times of an olive tint. 



The ? resembles the <J . 



This well-marked species is generally distributed. 



6. Agricola, Meig.?, Macq.?, Zett., Rond. 



Tellowish-grey, striped, and tessellated in black, in the ordinary 

 manner. Buccal seta? a little enlarged. First anal segment of ^ grey, 

 and mostly retracted. Posterior tibiae of ^ thinly bearded. 



Length, 3 — 4 lines. 



This species resembles S. melanura in the number of thoracic dorsal bristles, and by the 

 absence of central spines upon the second abdominal segment ; but it differi in having the 

 frontal space narrower (it not occupying more than one-fourth of the width of the head in 



,^Mr^^^r 



