TABLES OF ORTHOPODOMYIA 879 



in colder regions. There are, however, several broods in a year, the early larvae 

 pupating and emerging normally. The adults inhabit wooded places and have 

 been taken resting on the trunks of trees. The females will bite when given 

 an opportunity, but are not especially troublesome. They are never common, 

 owing no doubt to their peculiar breeding-places, which renders it impossible 

 for them to develop in great numbers. The larvae are preyed upon by larvae 

 of species of Megarhinus, which probably greatly reduce their numbers. We 

 have never found our northern species so abundant as other tree-hole inhabiting 

 mosquitoes, such as Aedes triseriatus Say, which is often a serious nuisance ia 

 wooded places. 



The larvae are peculiar by the absence of the pecten of the air-tube. They 

 are strongly pigmented with crimson; the tracheal tubes are enlarged into 

 bladders in the thorax. In these characters they agree with the larvae of 

 Megarhinus. The peculiar abdominal plates that appear in the last stage are 

 also suggestive of the plates of Megarhintis, though not homologous with them. 



Tables op the Species, 

 adults, stedctube and coloeation. 



1. Thorax without narrow silvery white lines 2 



Thorax with narrow silvery white lines 3 



2. Wing-scales mottled yellow and black fascipes Coquillett (p. 882) 



Wing-scales dark persephassa Dyar & Knab (p. 886) 



3. Wings with large yellowish costal spots phyllozoa Dyar & Knab (p. 879) 



Wings with black scales pepjwred with white 4 



4. The two posterior thoracic lines beginning close to the second pair of anterior 



lines signifer Coquillett (p. 887) 



The two posterior thoracic lines beginning about halfway between the ends 



of the two anterior pairs of lines waverleyi Grabham (p. 891) 



MALE GENITALIA. 



1. Clasp-filament with a row of setae within phyllozoa Dyar & Knab (p. 881) 



Clasp-filament simple 2 



2. Unci double, with a small inner piece fascipes Coquillett (p. 884) 



Unci sinele without inner niece C signifer Coquillett (p. 889) 



unci smgie, wunout inner piece \waverleyi Grabham (p. 892) 



Of the following we possess no males : persephassa Dyar & Knab. 



LABV^. 



1. Air tube long and slender; lateral comb of the eighth segment with only a 



few scales in the second row phyllozoa Dyar & Knab (p. 881) 



Air tube short; lateral comb of the eighth segment of scales in a double row 2 



2. Sixth abdominal segment with a large dorsal plate reaching to the middle of 



the side fascipes Coquillett (p. 884) 



Sixth abdominal segment with a small dorsal saddle only 



(signifer Coquillett (p. 889) 

 \waverleyi Grabham (p. 892) 



The larva of persephassa Dyar & Knab is unknown. 



ORTHOPODOMYIA PHYLLOZOA (Dyar & Knab). 



Mansonia phyllozoa Dyar & Knab, Journ. N. Y. Ent. Soc, xv, 199, 1907. 



Mansonia phyllozoa Busck, Smiths. Miss. Colls., quart, iss., lii, 60, 1908. 



Mansonia phyllozoa Theobald, Mon. Culic, v, 619, 1910. 



Bancroftia phyllozoa Howard, Dyar & Knab, Mosq. No. & Centr. Amer. & W. Ind., 



ii, pi. 35, fig. 236, pi. 129, fig. 448, 1913. 

 Bancroftia phyllozoa Picado, Bull. Scient. France et Belg., 7 ser., xlvii, 353, 1913. 



Original Description of Mansonia phyllozoa: 



(?.— Proboscis moderately long and stout, slightly swollen towards the apex, 

 black scaled, a yellow-white ring behind the middle; palpi nearly as long as the 

 proboscis, black scaled with two yellow-white rings, the apices brilliantly silver 

 scaled; mesonotum very deep brown with four longitudinal lines of silvery- white 

 scales, two of these lines are marginal and extend the entire length of the meso- 



