De Santis, 1972 : 431 semiflavus The genus Heterothrips (Thysanoptera) in Brazil, with an identification key and seven new species Pereyra, Veronica Cavalleri, Adriano Zootaxa 2012 3237 1 23 6M5Q8 Hood, 1954 Hood 1954 [151,544,1801,1827] Insecta Heterothripidae Heterothrips Animalia Thysanoptera 9 10 Arthropoda species bicolor     Heterothrips semiflavus  De Santis, 1972: 431. syn.n. This species has previously been known only from the holotypefemale from Southern Brazil, but has now been collected in large numbers in Rio Grande do Sul. It is remarkable in having the body sharply bicolored ( Fig. 102), with all tibiae and abdominal segments III–VII yellow. Antennal segments I–II are yellow ( Fig. 104), and the fore wings are mostly pale, with a median brown area medially. The male is similar in coloration to the female ( Fig. 103). Males have large transverse pore plates on sternites VII–VIII, and short dorsolateral processes on tergite IX ( Fig. 107). No differences in reticulation pattern, wing color and abdominal microtrichia distribution could be found between this species and the single female from which  semiflavuswas described. This is a damaged specimen, without antennae, and the differences in leg and abdomen coloration are possibly because it is teneral, and thus paler than a mature adult.   Material examined. Holotypefemale,  Brazil, Santa Catarina, Nova Teutônia, 26.xi.1949, (F. Plaumann) ( USNM); Rio Grande do Sul, Porto Alegre ( 30º04’09”S, 51º07’12”W), 27.i.2011, 15 females, 1 maleon  Trema micranthaflowers ( Ulmaceae) (A. Cavalleri); 1 femalewith similar data but on  Eugenia uniflora; São Paulo, Mogi-Guaçu, 17.v.2010, 1 femaleon  Alchornea triplinerviaflowers. Holotypefemale of  H. semiflavus,  Brazil, São Paulo, Barueri, 21.v.1967, in nest of  Camponotus rufipes(L. De Santis)( MLP).