172 Mr. R. MacLachlan's Monograph of 



We have three species, so different that a tabular 

 arrangement is unnecessary. 



1. MiCROMUS VARiBGATiTSj Fabricius. 



Hemerohius variegatus, Fab. Ent. Syst. ii. 85 (1793); 

 Steph.Ill. vi. 113; Zett. Ins. Lapp. 1049; Burm. Handb. 

 ii. 974; Wesm. Bull. Acad. Brux. 1840, p. 214; Micro- 

 mus variegatus, Ramb. Nevrop. 417; Costa, Faun. Nap. 

 4, pi. X. fig. 2; Brauer, Neurop. Aust. 58; Hag. Ent. 

 Ann. 1858, p. 26. 



Fuscous, with whitish pubescence; head testaceous 

 posteriorly; palpi whitish ; antennce whitish, with fuscous 

 annulations, the basal joint wholly fuscous ; posterior lobe 

 of the raeso-notum, and scutellum of the meta-notum, 

 whitish. 



Legs whitish ; the tihice with a faint fuscous ring to- 

 wards the middle, and fuscous at the apex ; tarsi blackish 

 at the extreme tips. 



Wings narrow, whitish, sub-hyaline ; anterior wings 

 with two irregular black fasciae following the gradate 

 veinlets, the inner one continued as a blotch towards the 

 base, the outer one formed of two irregular blotches; 

 margins and veins spotted, and interrupted with black; 

 neuration forming large cellules; about five veinlets in 

 each of the gradate series, and one or two others towards 

 the base; neuration and margins longly ciliated with 

 whitish. In the posterior ivings the apex is spotted with 

 black, in the form of three irregular blotches ; neuration 

 mostly white (PL IX. fig. 4). 



Anal appendices of the male, needle-shaped, the ventral 

 lobe large ; the abdomen above, with two oval valves at 

 the apex. 



Length of body 2-2^ lines; expanse of wings 6 lines. 



Frequent in summer, and generally distributed. 



2. MiCROMUs APHiDivoRUS, Schrank. 



Hemerohius aphidivorus, Schrk. Ins. Aust. 313 (1781). 

 H. angulatus, Steph. 111. vi. 106 (1836). H. villosus, 

 Zett. Ins. Lapp. 1050 (1840); Micromus villosus, ^raner, 

 Neurop. Aust. 58. 31. intricatus, Wesm. Bull. Acad. 

 Brux. 1840, p. 214; Hag. Ent. Ann. 1858, p. 26. M. 

 iendinosus, Ramb. Nevrop. 417 (1842). H. lineatus, 

 Gozsy, Sitz. Akad. Wiss. 1852, p. 346. 



