366 WILLIAM T. M. FORBES 



3. M. palmii H. Edwards. Similar to M. simulans, but usually with a larger 

 extent of more orange-yellow on the body. Spot on tegulae inverted-comma-shaped, 

 nearly reaching collar. Larva on oak. 



New York City to Florida and the Pacific Coast. New York: Flatbuah and 

 Yaphank, Long Island. 



4. M. scepsiformis H. Edwards. Dull black; antennae in part, neck, palpi, legs 

 in part, and base of hind wing rufous. Legs banded with black; second segment 

 of abdomen with a yellow stripe. Border of hind wing very narrow, deeply extended 

 in, along Cu, 1st A, and 2d A. 25-30 mm. 



Male not seen; possibly a variety of polistiformis. 

 Maryland; Kansas; Texas. 



5. M. polistiformis Harris. Brown, more or less iridescent with purple; with 

 orange markings, as in M. scepsiformis, and also normally with orange bands on 

 abdomen and almost wholly orange legs. A yellow band on fourth as well as 

 second segment of abdomen; male with a transparent streak at base of fore wing, 

 and with abdomen ending in five pencils, as in Sannina. 22-40 mm. (H 46:11^ 

 12$.) 



Larva boring in grape roots, and sometimes injurious. 

 Vermont to Minnesota, South Carolina, and Missouri. 



II. Male antennce subpectinate and fasciculate; palpi hairy, but less so than in the 



simulans group. 



6. M. tricinctus Harris. Brownish; front of palpi and neck yellow; legs black 

 and orange; abdomen with yellow bands on second, fourth, and sixth segments, 

 and in male on seventh also. Fore wing black with transparent streaks at base, the 

 anal angle becoming transparent in rubbed specimens; hind wing transparent. 

 Abdominal tuft short and massive. 25-28 mm. 



June to July. Larva boring in willow and poplar branches. 



Quebec to New York and Michigan. New York: Buffalo, Lancaster, Big Indian 

 Valley, Karner, Long Island generally. 



7. M. dollii Neumcegen. Thorax and wings deep brown; abdomen deep brown, 

 becoming more or less chestnut brown toward apex; the whole thorax and abdomen 

 chestnut in variety castaneus Beutenmuller. Palpi dark. Fore wing a little 

 transparent at base; hind wing with a broad brown border, somewhat diffuse, but 

 with no special tendency to fill cell CUj. Legs dull orange; hind tibia dull fuscous 

 below. Strongly variable both in size and markings. 20-38 mm. 



Larva in solid wood of young poplars. 



Southern New York ; New Jersey ; Pennsylvania ; Illinois. New York : Brooklyn. 



III. Male antennce somewhat servate, and less heavily fasciculate; palpi hairy; 



terminal tuft bifurcated (Albuna Henry Edwards). 



8. M. pyramidalis Walker. Fore wing transparent, with reddish and black- 

 brown markings; margin extending about a third way into cell, rather wider 

 toward apex, as in many Conopias. Bar at end of cell heavy and oblique. Border 

 of hind wing narrower than fringe. Abdomen more or less striped with yellow. 

 Palpi yellow in front. Legs black and yeilow. 25 mm. ( mont ana Henry Edwards. ) 



June to August. 



Newfoundland and New York to the Pacific Coast. New York: Axton, Big 

 Indian Valley ; Brooklyn, and Bayshore, Long Island. The record for " morrisonii " 

 from Watkins Glen doubtless refers to this species. 



The female form coloradensis Henry Edwards, with a solid black body and legs, 

 appears to be generally distributed with the species. 



9. M. fraxini Henry Edwards (J morrisonii Henry Edwards), with solid black 

 fore wings, abdomen, and legs, occurs east to Missouri. It may be distinguished 

 by a bright red bar at the end of the cell. 



