both winged and wingless, the former predominating. There are from 

 9 to 17 generations of these summer forms at Vienna, Virginia. Aftor 

 the second generation the wingless individuals always outnumber the 

 others, though winged forms may occur in every generation. They 

 become rare toward the end of the season, but a series of wingless 

 generations may occur from the stem-mother to the egg. A third or 

 intermediate form may also occur throughout the summer. The 

 wingless sexes begin to appear about 1st September. They occur in 

 all generations, from the eleventh to the nineteenth, inclusive, and 

 probably also in the ninth and tenth. The summer wingless forms and 

 the oviparous females, which live longer than the males, remain on the 

 trees at Vienna until the leaves drop, usually from the middle to the 

 end of November. Mating commences towards the close of September, 

 one male usually pairing with more than one female. A bibliography 

 of 19 works completes this paper. 



TowNSEND (C. H. T.). Some New North American Muscoid Forms.— 



Insecutor Inscitiae Menstruus, Washington, D.C., iv, nos. 7-9, 



July-September 1916, pp. 73-78. [Received 10th November 



1916.] 



In this paper on North American flies, a new genus, Eubiomyia, is 



erected for Pseudntractocera calosom.ae, Coq., a parasite of Calosom&. 



mlidum. The following new genera and species are also described :— 



Ypophaemyia mahcosomae, from pupae of Malacosoma americana : 



Euzenilliopsis diatraeae, from larvae of Diatraea sacchnralis; and 



Schizocerophaga leibyi, from pupae of Schizocerus privatus, Norton. 



Hood (J. D.). A New Pkdrothrips (Thysanoptera) from Jamaica.— 



Insecutor Inscitiae Menstruus, Washington, D.C., iv, nos. 7-9, 



July-September 1916, pp. 78-80, 1 plate. [Received 10th 



November 1916.] 



Pkctrothrips pallipes, sp. n., taken in the burrows of Cerambycid 



beetles boring in pimento in Jamaica, is described. 



SwEZEY (0. H.). Gonatocerus mexicanus, a Mymarid parasitic in the 

 Eggs of Draeculacephala mollipes in Hawaii. — Proc. Hawaiian 

 Entom. Soc, Honolulu, iii, no. 3, September 1916, p. 146. 

 [Received 10th November 1916.] 



Gonatocerus mexicanus has been reared from the eggs of Draeculace- 

 phala mollipes in Hawaii. This species has also been reared from 

 Jassid eggs in Mexico. The eggs of D. mollipes are also known to be 

 parasitised by the Eulophid, Ootetrastichus beafus, and by the Tricho- 

 grammatids, J assidophthora lutea and Westwoodella caeruhcephala. 



Ehrhorn (E. M.). Contributions to the Knowledge of the Dactylo- 

 piinae of Hawaii.— Proc. Hawaiian Entom. Soc, Honolulu, iii, 

 no. 3, September 1916, pp. 231-247. [Received 10th Novembw 

 1916.] 



This paper gives a general account of the sub-family Dactylopiinae, 

 ■with keys to Hawaiian genera and species. The following new species 



