1883.] 195 



Anaholia nervosa, Curt., common on the Clyde and elsewhere. At a pond near 

 here, during the afternoon of a fine day at the beginning of September of this year, 

 I noticed several males taking short flights; numerous examples were resting on the 

 tops of rushes quite exposed, several pairs being in copulA. 



Asynarchus caenosus, Curt., two specimens, in August, at a moor-pool. 



Stenophylax infumatus, McLach., several specimens on the Clyde, and one at a 

 burn, in June. On the Clyde the species appears to be restricted to one spot where 

 the water runs rather slowly ; it is very difficult to dislodge from the hollowed-out 

 banks where it conceals itself. To give a better idea of the nature of the locality, 

 I may mention several insects that occur at the same place, viz. : Goera pilosa, 

 Sericostonia personatum, Lype phceopa and Limno. fuscicornis, the last-named 

 appearing very much to resemble infumatus in its retiring habits. •^'. rotundipennis, 

 Brauer, a pair ( J ? ) on a burn near Carluke, in August, 1881, but I did not succeed 

 in finding it this season. <S'. stellatus, Curt., swarms on the Clyde and elsewhere, 

 appearing as early as 1st of June, and continuing to the end of September. S. vihex, 

 Curt., one $ on the Clyde, 1st of June. 



3Iicropterna seqiiax, McLach., and lateralis, Steph., are both apparently rare. 



Halesus radiatus. Curt. — About the end of August last, this species literally 

 swarmed at dusk, at two difl"erent burns ; also occurs on the Clyde. H. digitatus, 

 Schrk., a few specimens on the Clyde in October. S. auricollis, Pict., frequent on 

 the Clyde in September and October ; the examples are larger than any I have seen 

 from the North of Scotland. 



Drusus anmdatus, Steph., a common insect at every stream; the only ? I possess 

 was taken about the middle of May ; I have seen males at the end of September. 



Ecclisopteryx guttulata, Pict., very common at most streams. 



Chcetopteryx villosa', F., frequent on the Clyde in October. 



Serieostoma personatum, Spence, not uncommon on the Clyde and elsewhere. 



Goera ^i^osa, F., common on the Clyde; it also occurs frequently at most of 

 the other streams. 



Silo pallipes, F., abundant at every stream. 



Brachycentrus subnuhilus, Curt., abundant on the Clyde, in some years appearing 

 in myriads. 



Lepidostoma hirtttm, F., common on the Clyde. 



BercBa pullata, Curt., and £. maurus, Curt., frequent at swampy spots on the 

 banks of different burns. 



BercBodes minuta, L., is rather common on a small burn at a place where there 

 is little or no current, and where the margins are boggy and rush-covered. 



Odontocerum alhicorne, Scop., common on the Clyde. 



Leptocerus annulicornis, Steph., frequent on the Clyde. L. aterrimus, Steph., 

 very abundant ; the var. perfuscus much the commoner form. L. cinereus, Curt., 

 common. L. alhifrons, L., abundant on the Clyde. L. commutatus, McLach., fre- 

 quent on the Clyde ; apparently partial to places where the water does not run very 

 quickly. L. bilineatus, L., tolerably common on several streams. 



Mystacides nigra, L., apparently rare on the Clyde. M. azurea, L., common. 

 M. longicornis, L., in abundance at Lanai'k Loch, and- very variable. 



