36 L. A. MOUND 



EUHYDATOTHRIPS Bagnall 

 Euhydatothrips Bagnall, 1926c : 99. Type-species E. nigripennis, by monotypy. 



This genus, based on a single male specimen mounted laterally on a slide, was 

 compared to Hydatothrips Karny. The latter genus is a synonym of Sericothrips, 

 whereas Euhydatothrips is a Heliothripine related to Caliothrips. The type speci- 

 men has been remounted dorsoventrally and is redescribed below, but many features 

 are still not apparent. The genus may be defined as follows. 



Antennae similar to Caliothrips ; head reticulate, longer than broad, without large setae, 

 mouth cone reaching middle of pro thorax ; prothorax reticulate, transverse ; legs elongate as 

 in Sericothrips ; wings long and narrow, upper vein with wide interval in setal distribution, 

 lower vein with four widely spaced setae ; abdomen pale but apparently reticulate ; armature of 

 ninth and tenth tergites as in Helionothrips ; sternal setae apparently long, two thirds as long 

 as the sternites. 



Euhydatothrips nigripennis Bagnall 

 (Text-fig. 8) 

 Euhydatothrips nigripennis Bagnall, 1926c : 99-100. 



Male : Colour pale yellow, but brown on vertex, metathorax, and antennals I, II, distal 

 half of V and VI to VIII ; fore wings dark brown. Antennae Heliothripid, trichomes on III 

 and IV forked, long, that on IV extends to distal tip of V. Head reticulate, ocelli close together, 

 elevated : setae minute, about 2[i. long, one pair on anterolateral margins of ocellar triangle, 

 ? one pair lateral to fore ocellus ; two pairs of postocular setae situated between posterior 

 ocelli and hind margin of eye. 



Pronotum reticulate ; one pair of anteromarginal setae and one pair of postero-angular 

 setae i2u. long ; disc with five or six pairs of setae 8^l long. Meso and metathorax reticulate. 

 Legs elongate, tarsi undivided. Microtrichia of fore wings stout ; upper vein with 8 (or 6) 

 setae basally, and two near wing apex ; lower vein with four widely spaced setae ; wing apex 

 pointed with two subapical setae. 



Abdominal tergites with three pairs of setae, median pair posterior to median pores, close to 

 hind margin. Reticulations equiangular medially, elongate laterally, apparently with some 

 internal sculpture. Tergite IX with two pairs of stout thorn-like setae and tergite X with a 

 circle of six papillae as in Helionothrips. 



Holotype <$. [Tanganyika]: Arusha, x-xi.1905 (Katona). 



EUPHYSOTHRIPS Bagnall 



Euphysothrips Bagnall, 1926c : 646. Type-species E. minozzii, by monotypy. 



This genus was erected for a unique species which bears two pairs of long post- 

 ocular setae on the head and two pairs of elongate postero-angular prothoracic setae, 

 The prothorax also bears numerous dorsal setae. 



Euphysothrips minozzii Bagnall 

 (Text-fig. 21) 



Euphysothrips minozzii Bagnall, ig26e : 646-648. 

 Euphysothrips menozzii Bagnall, 1927a : 570. [Emendation]. 

 Euphysothrips minozzii Bagnall ; Bagnall, 1933c : 653. 

 Euphysothrips minozzii Bagnall ; Priesner, 1964 : 69. 



