THYSANOPTERA FROM THE WEST INDIES. 499 



larvse), Saugre Grande, Feb. 1913 (99-7), and the other from cultivated 

 roses, suckmg petals, La Tosca, Sangre Grande, April (99-5) and November 

 1913. In the latter case the species appeared in numbers and was 

 accompanied by FranMiniella mekmommata, Williams. 



It is also known from Guadalajara and Monterey, Mexico ; Brownsville, 

 Texas ; and Miraflores, Canal Zone, Panama *. 



Frankliniella melanommata, Williams, Jovrn. Econ. Biol. vol. viii., 

 December 1913, pp. 213-215, fig. 2. 



This little species has only recently been described by Williams from 

 St. Vincent. It is somewhat closely allied to tritici (Fitch) and ceplialicns, 

 Crawford, and it causes one to think that the tritici recorded by Franklin 

 from Barbados may be referable to this form. 



Both sexes from cultivated roses, La Tosca, Sangre Grande, April and 

 November 1913. 



Suborder TUBULIFERA. 

 Family I D L T H R I p I D ^. 



DiCAIOTHRIPS L/EVICOLLIS, Bagn. 



Two ?s with D. brevicoriiis recorded below, and 'd S^ and 1 $ from 

 Verdant Vale, Trinidad, April 1912. These agree perfectly with description 

 of the original examples from Venezuela, except in the length of the bristles 

 of the 9th abdominal segment in the S , v\hich in these examples are seven- 

 eighths the length of tube. It should be noted that these are shown much 

 too short in the original figure (pi. 52. fig. 5 t). The relative lengths of the 

 antennal joints are approximately :— 20 : 26 : 102 : 63 : 57 : 45 : 28 : 25. Tube 

 in ($ about 4 times as long as broad at base. 



DiCAIOTHRIPS BREVicoRNis, Bagn. (PI. 48. fig. 9.) 



Examples of both sexes found amongst leaves of a dead coconut- palm and 

 some on and under the bark of the stem. Mr. Urich states that examples 

 were observed to deposit eggs on the leaves and to sit over them. The fore- 

 femur within has a low tubercle at distal third, somewhat as in Idolothrips 

 tuberculatus, Hood, though not so pronounced. 



(^. The male was previously unknown. The head is a little longer than 

 in the 2 , nearly 2' 5 times as long as broad, postocular bristles absent, and 

 genal spines a little more plentiful. Fore-femora not strongly incrassate ; 

 spines on outer side near base stronger than in the ? ; tihise. and tarsus as 

 in cT distindics, Bagn. Relative lengths of antennal segments approxi- 

 mately :— 18 : 2.0 : 6i5 : 51 : 45 : 35 : 24 : 22. 



* See Hood, 'Psyche/ xx. No. 4, August 1913. 



t Journ. Linn. Sec, ZooL xxx, 1909, pp. 369-387, pis. 51-53. 



