o 



6 FAUNA HAWAIIENSIS 



account of its habits and development is published in the Entomological Monthly 

 Magazine, xxxiii. (1897), p. 56. 



§ 2. Systematic account of the Neuroptera. 



HEMEROBIIDAE. 



HEMEROBIIDES. 



The Hemerobiidae represented by the genera Megalomus, Nesomicromus, Psetido- 

 psectra, and Nesothauma, as well as the numerous species of Anojnalochrysa and the 

 solitary' one oiChrysopa of the subdivision Chrysopides and including also Myrmeleonides 

 form the most extensive section of the Hawaiian Neuroptera. Nearly all the species 

 are confined to the mountain forests. The larvae of the Hemerobiids proper appear to 

 feed on the species of Psocidae, those of Anomalochrysa, I have little doubt, prey on 

 Lepidopterous larvae. Their mandibles are sharp and strong, so that they can give 

 quite a sharp bite, when they fall upon the face or neck, as is often the case when one 

 is beating the branches of trees. All the species appear to be nocturnal, although some 

 are very readily disturbed, as one walks through the brush in the daytime. 



Megalomus Ramb. 



(i) Megalomus hospes, sp. nov. 



Head, thorax, and abdomen varying in colour from nearly uniform dark brown or 

 blackish, with obscure pale markings, to a nearly uniform yellowish colour ; generally 

 brown with pale markings, or yellow with fuscous markings. 



Anterior wings grey, more or less fulvescent, with a more or less distinct dark spot 

 on the cubitus posticus, towards the base. Nervuration set with hairs, and with alternate 

 light and darker spaces. The gradate nervules form two more or less distinct, trans- 

 verse, oblique darker lines, and there is a third near the base. In one example the 

 whole middle portion of the wing between the inner and the basal series of gradate 

 nervules is deeply infuscate, forming a wide blackish transverse fascia. Radius with 

 three sectors. The posterior wings are almost hyaline, and beautifully iridescent, 

 their nervuration pale. 



' We have excluded the Chrysopa oceanica Walk, from the list as probably not belonging to the Hawaiian 

 fauna. Several species brought home by the Beechey expedition with the locality " Sandwich Is.'' appear to 

 have come from the other islands of that name. 



