108 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvi. 



Genus HELIOTHRIPS Haliday. 



Bod}^ especially the head and prothorax, with a deeply recticiilated 

 structure. Head broader than long, uneven, somewhat broadened 

 behind, and with a sharp hump between the eyes in front. Cheeks 

 not arched, contracted into saddle-shape in the middle. Eyes promi- 

 nent but not protruding-. Ocelli present. Antennae eight segmented; 

 second segment of style very much longer than the first and provided 

 with a short, slender hair at the tip. Maxillary palpi sometimes 

 two, sometimes three segmented. Prothorax shorter than the head, 

 without long spines at angles. Legs unarmed. Wings present, not 

 reticulated. Fore wing broad at base, with two longitudinal veins, 

 though the fore vein runs very near to and sometimes fuses with the 

 costa; veins set with slender spines; fore fringe, in some species, very 

 weak and sparse, and when this is the case the costal spines are very 

 strongly developed. Anal spines weak and light. 



The characters of this genus have been extended to include these 



species 



SYNOPSIS OF SPECIES. 



)AI1 tilmi' yellow 2 



(Middle and hind tibise brown 3 



J Antenna' nearly three times as long as head JeinoraUx (p. 172) 



" JAntennte only about twice as long as head hiemorrlioidalis (p. 168) 



IAntennie two and one-half times as long as head; segments three and four modio- 

 liform. Maxillary palpi three segmented fasciatus (p. 174 ) 

 Antann,'e twice as long as head; segments three and four fusiform. Maxillary 

 palju two segmented fasciapennis (p. 171 ) 



HELIOTHRIPS HAEMORRHOIDALIS (Bouche). 



Thrrps Jiaeniorrhoidalis Bouche, Schiidl. Garten-Insecten, 1833, p. 42. 

 Heliothrips adonidum Haliday, Entom. Mag., Ill, 1836, p. 443. 

 Ileliothrips haemorrhoidalis Bukmeister, Handb. d. Entomologie, II, 1838, p. 412. 

 Heliothrips JtaemorrJioidaUs Bukmeister, Genera Insectorum, colored illustration, 



1838. 

 Heliothri2JS Jiaemorrhoidalis Amyot and Herville, Ins. Hemipt., 1843, p. 641. 

 HeUothrijis ]iaemorrhoidalis Haliday, "Walker, Homopt. Ins. Brit. Mus., 1852, p. 



1002, pi. VI, fig. 13. 

 Heliothrips haemorrhoidalis Heeger, Fi'infte Fortsetzung. Sitzungsb. Kais. akad. 



Wiss., Wien, IX, 1852, p. 473, pi. xvii; separate, Wien, Gerold, 1852, VIII, 



pp. 3-4. 

 Thri])s haemorrhoidalis Bremi, Stett. Ent. Zeit., 1855, pp. 313-315. Reprinted 



from Abhandl. d. Zurich Gartenbau-Gesell., Ill, pp. 260-261. 

 Ileliothrips haemorrhoidalis Low, Verhandl. d. k. k. zool.-bot. Gesellsch., Wien, 



XVII, 1867, p. 747. 

 Heliothrips haemorrhoidalis Boisduval, Ent. Hortic, 1867, pp. 233-235, fig. 32. 

 Heliothrips haemorrhoidalis Packard, 17th Ann. Rept. Mass. Bd. Agr., 1870, p. 



263, pi. I, fig. 2; Injurious Ins. new and little known, p. 31. 

 Thrips adonidum Cook, 3d Ann. Rept. Pom. Soc. Mich., 1873-74, 1874, p. 501. 

 Ileliothrips haemorrhoidalis Packard, Half Hours with Ins., 1881, pp. 118-119, 



fig. 86. 



