1895.1 ^2-^ [Grote. 



miniini from the "interesting leg structure figured by Zeller." In the 

 second the lines are continuous, the resemblance to the Geometridse is 

 7->_iarked, not only in the rivulous lines, but in general color, and even con- 

 tour. At the same time the resemblance between aberrant geometrid 

 moths in the European fauna, such as mmniata and plumbaria, with North 

 American Euclidiini is so striking as to have induced Hiibner to figure our 

 species as Geometridse ; this autlior also refers our Arctia rubicundaria to 

 the Geometrid genus Crocota. Examples of the second type of ornamenta- 

 tion are Thysania and Pheocyma (= Homoptera). In the Thysaniini the 

 extreme limits in size within the Order is reached ; the fore wings are 

 greatly elongated, the body vestiture lies close, the eyes are large, head 

 and palpi well developed, while the large lateral expansion of the wings 

 fit the moths for extended flights. Thysania and Letis are wind-visitors 

 over our territory from intertropical America ; Erebus may breed in 

 Texas or Florida, in Arizona and the Southwest. The name of the tribe 

 cannot be taken from Latreille's genus, Erebus, since it becomes in this 

 case a duplication of the title of the diurnal group of which Erebia Dal- 

 man is typical. I have arranged the tribes on comparative characters of 

 the moths, but a classification seems also possible upon the prolegs of the 

 larvae, which vary in number from twelve to sixteen. The observation 

 made by me on the larva of Apatela is repeated by Prof. Brooks on cer- 

 tain Crustacea, in which "the free prolonged larval life has brought 

 about modifications which have no reference to the life of the adult, so 

 that the larvae differ among themselves more than the adults do." But 

 the suppression of the prolegs in the Catocalinse, especially in the Boleto- 

 biini, where it reaches its maximum in Boletobia and Aventia, would 

 seem to be of phylogenetic importance. The larva of Catocala seems to 

 mimic bark or branchlets, thus like that of the Geometrid genus, Eubyja. 



Tribe Euclidiini, type Euclidia glypMca, "Grass Moths:" Euclidia, 

 Diasteria, Caenurgia, Dysgonia (type algira, and here I suspect belong 

 our smithii (J' = consobrina 9. concolor), Panula, Agnomonia, Poaphila 

 (type sylvarnm), Phurys, Parallelia, Phoberia, Celiptera (Litomitus). 



Tribe Melipotini, Synedoida (Cissusa may belong to the preceding), 

 Melipotis (Bolina), Hypocala, Litocala, Syneda, Cirrhobolina. The 

 genera Hypogramma, Capnodes and Agassizia are unknown to me. A 

 distinction between these two tribes may be difficult. 



Tribe Eulepidotini, type Eulepidotis alabastraria : Palindia, Eulepi- 

 dotis. 



Tribe Stictopterini : Stictoptera, Magusa. 



Tribe Ascalaphini, type Ascalapha lunaris : Ascalapha, Strenoloma, 

 Siavana, Panopoda {mfimargo and earneicosta are not varieties, but distinct 

 species), Fagitana (Pseudolimacodes), Argillophora, Remigia, Pleonec- 

 typtera, Antiblemma, Anticarsia. 



Tribe Catocalini, type Catocala fraxini : Catocala, Andrewsia, Allotria. 



Tribe Ophiderini, type Ophideres materna : Euparthenos, Ophideres. 



Tribe Toxocampini, type loxocampa ludicra : Toxocampa, Eutoreuma. 



